AMEC Coating Specification 01

Document No: UOG-ENG-SPC-45-006Revision No.: 01

PROTECTIVE COATING

01 Issued for Comment J. Wells 6/07/04 C. Gillard 6/07/04

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AMEC CLIENT

Protective Coating

UOG-ENG-SPC-45-006 Page 2 of 3535 Revision 01

CONTENTS1.0 INTRODUCTION ............................................................................................................................................ 4

2.0 ABBREVIATIONS .......................................................................................................................................... 4

3.0 REFERENCED DOCUMENTS....................................................................................................................... 4

4.0 SCOPE............................................................................................................................................................ 5

5.0 HEALTH, SAFETY AND ENVIRONMENT..................................................................................................... 65.1 REGULATIONS ............................................................................................................................................. 65.2 SAFETY PRECAUTIONS FOR PRESSURISED HOSES ........................................................................................ 65.3 GENERAL HAZARDS ..................................................................................................................................... 65.4 SCAFFOLDING, STAGING AND ACCESSIBILITY ................................................................................................ 75.5 COATING MANUFACTURER'S INFORMATION ................................................................................................... 75.6 FLAMMABLE ATMOSPHERES (AREA CLASSIFICATION) .................................................................................... 75.7 PRECAUTIONS IN CLEANING AND APPLICATION OF PAINTS ............................................................................. 75.8 PERSONNEL/ ITEMS TO BE PROVIDED BY THE CONTRACTOR........................................................................... 7

6.0 PREPARATION FOR COATING ................................................................................................................... 86.1 SURFACE IRREGULARITIES ........................................................................................................................... 86.2 SURFACE CONTAMINANTS............................................................................................................................ 86.3 BLAST CLEANING......................................................................................................................................... 8

7.0 SELECTION OF COATING MATERIAL SUPPLIER..................................................................................... 9

8.0 QUALITY ASSURANCE .............................................................................................................................. 108.1 INSPECTION/ QUALITY CONTROL ................................................................................................................ 108.2 REPRESENTATIVE PANELS ......................................................................................................................... 108.3 COATING MANUFACTURER'S SUPPORT ....................................................................................................... 10

9.0 INSPECTION ................................................................................................................................................ 119.1 GENERAL REQUIREMENTS ......................................................................................................................... 119.2 CONTRACTOR'S INSPECTION RECORDS....................................................................................................... 119.3 CONTRACTOR'S INSPECTION EQUIPMENT.................................................................................................... 119.4 ACCESS AND FACILITIES............................................................................................................................. 119.5 DOCUMENTATION OF THE WORK................................................................................................................. 11

10.0 SELECTION OF COATING SYSTEM....................................................................................................... 12SYSTEM 1 .......................................................................................................................................................... 13

Jacket and Structure to Top of Jacket (including cellar deck), Bottom of Risers, Caissons, Process Pipeworkto ESDV Termination ....................................................................................................................................... 13

SYSTEM 2 .......................................................................................................................................................... 14Topsides Structure, Carbon Steel Equipment & Pipework.............................................................................. 14

SYSTEM 3 .......................................................................................................................................................... 15Insulated – Topsides Carbon Steel Equipment & Pipework............................................................................ 15

SYSTEM 4 .......................................................................................................................................................... 16Controlled Environment/ Internal Areas, Carbon Steel Structure, Equipment & Pipework (excluding insulatedsystems)........................................................................................................................................................... 16

SYSTEM 5 .......................................................................................................................................................... 17Corrosion Resistant Alloy Equipment and Pipework, Insulated or operating above 50°C (Stainless Steel 316)and 60°C (Duplex Steels and Alloy 825) ......................................................................................................... 17

SYSTEM 6 .......................................................................................................................................................... 18Stainless steel and Alloy 825 Operating above 150°C, Carbon Steel Operating above 120°C, and Flare .... 18

SYSTEM 7 .......................................................................................................................................................... 19Carbon Steel, Stainless steel and Alloy 825 operating above 120°C (or design above 150°C) where Accessis Poor .............................................................................................................................................................. 19

SYSTEM 8 .......................................................................................................................................................... 20Galvanising and Coating over Galvanising...................................................................................................... 20

Protective Coating


SYSTEM 9 .......................................................................................................................................................... 21Decks ............................................................................................................................................................... 21

SYSTEM 10 ........................................................................................................................................................ 22Internal Surfaces of Carbon Steel Vessels (Hydrocarbon or Seawater) ......................................................... 22

SYSTEM 11 ........................................................................................................................................................ 23Internal Surfaces of Carbon Steel Pipework – Corrosion Protection .............................................................. 23

SYSTEM 12 ........................................................................................................................................................ 25Internal Surfaces of Pipework – Stainless Steel, Titanium & Nickel-Alloy Insulation Spools.......................... 25

SYSTEM 13 ........................................................................................................................................................ 27Internal Surfaces of Potable Water Tanks....................................................................................................... 27

11.0 PICKLING AND PASSIVATION................................................................................................................ 2811.1 BASE MATERIAL ........................................................................................................................................ 2811.2 AFTER WELDING........................................................................................................................................ 28

11.2.1 Seawater (25%Cr super duplex, 6%Mo)........................................................................................ 2811.2.2 Corrosive duty (including all process) (stainless steels, e.g. 316L, 22%Cr & 25%Cr duplex)....... 2811.2.3 Clean duty (e.g. nitrogen, air) (stainless steel 316L) ..................................................................... 28

12.0 COLOUR SCHEDULE............................................................................................................................... 2912.1 GENERAL .................................................................................................................................................. 2912.2 PIPEWORK IDENTIFICATION......................................................................................................................... 2912.3 PIPING SYSTEM COLOUR SCHEDULE .......................................................................................................... 2912.4 EQUIPMENT AND STRUCTURE COLOUR SCHEDULE ...................................................................................... 31FIGURE 1 FLANGE REBATE FOR GLASS FLAKE EPOXY LINED VESSELS AND PIPEWORK............................................. 35

Protective Coating


1.0 INTRODUCTION

This document gives requirements and recommendations for the surface preparation, coatingand colour schedule to be applied to both new and maintenance work which will be exposed toatmospheric conditions (irrespective of whether it will be insulated).An AMEC Materials Engineer should be consulted if further information is required.This document identifies a range of coating systems that combine improved technology to giveenhanced performance/ longer life, and in many cases reduced number of coats, thereforereducing the overall total coating times.Application of coatings is a task with inherent safety implications and requires adherence tocertain prescriptive methods of working. This specification defines safe operating practice forsuch activities. It also specifies coating systems that will minimise impact on health and safetyof operatives. Specifically isocyanate and lead chromate-based systems are excluded.Prior to carrying out a coating operation it is necessary for the coating sub-contractor to submita full procedure for review and approval by an AMEC Materials Engineer.

2.0 ABBREVIATIONS

DFT: Dry Film ThicknessLTC: Low Temperature CuringHB: High BuildMIO: Micaceous Iron OxideTSA: Thermal Spray Aluminium

3.0 REFERENCED DOCUMENTS

SIS 05 5900: Swedish standard – Surface preparation prior to paintingBS 4800: Paint colours for building purposesBS 7079 A3: Preparation of steel substratesBS 1710: Specification for identification of pipelines and servicesBS 5493: Code of practice for protective coating of iron and steel

structures against corrosionBS 7079/ ISO 8501: Preparation of steel substrates before application of paints and

related products. Visual assessment of surface cleanliness.Preparation grades of welds, cut edges and other areas withsurface imperfections.

NORSOK M-501: Surface preparation and protective coating.

Protective Coating


4.0 SCOPE

The contents of this specification define the essential requirements of surface preparation andcoating for structural steel, decks, modules, process-equipment, piping and productionfacilities.Specifically excluded from this specification is the protection of subsea pipeline items.Coating requirements outwith the scope of this specification will be subject to prior approval bythe AMEC Materials Engineer.

Protective Coating


5.0 HEALTH, SAFETY AND ENVIRONMENT

5.1 Regulations

Account shall be taken of all relevant technical, health, safety and environmental legislation.Plant and equipment shall be maintained in good condition and shall comply with applicablehealth, safety, and environmental (HSE) requirements: - • National or local law requirements;• Statutory requirements;• Site regulations;• Explosive atmosphere special regulations;• Company and Client procedures.Compressors and any associated pressure vessels shall be protected against overpressure.Current test certificates shall be held on site for inspection.Blast cleaning and spray-painting equipment shall be continuously bonded from the nozzle tothe surface being painted and backwards from the nozzle to the compressor, which shall beearthed. Compressors used shall meet any HSE requirements specified by AMEC.

5.2 Safety Precautions for Pressurised Hoses

Pressurised hoses shall be marked, tested and results logged to ensure safe operation. Testcertificates shall be available on site giving the maximum safe working pressure.Hoses and other pressure items shall be checked at least once per week to confirm that anydamage or loss of electrical conductivity will not be a safety hazard. The 'dead-man' handleshall only be manually held in position by the blaster. The Contractor shall keep a log of safetyinspections.

5.3 General Hazards

All hazards shall be identified and all necessary safety equipment shall be provided to ensurepersonnel protection in accordance with the Personnel Protective Equipment Regulations,1992.The Contractor shall carry out COSHH and environmental assessments prior to start of thework in accordance with Control of Substances Hazardous to Health Regulations, 2002.At the job planning stage an assessment of the potential for release of hazardous materialsinto the environment shall be made, including provisions for the safe disposal of usedmaterials and waste.Special attention shall be given to personnel protection. The Contractor shall provide all thenecessary items to ensure protection of his personnel whilst carrying out their duties.Appropriate protective clothing shall be worn at all times. Routine checks shall be made of theintegrity of all personal protective equipment. Risk assessments will be conducted todetermine adequate fire fighting equipment will be deployed in high-risk areas such as paintmixing areas and close to hydrocarbon or diesel driven plant and sufficient ventilation shouldbe provided whilst blasting or spraying operations are in process.Independent breathing apparatus shall be worn such that the operator is unaffected by theenvironment. Face fit testing will be required, in accordance with the Personnel ProtectiveEquipment Regulations, 1992. In particular areas where natural ventilation is insufficient,positive ventilation shall be applied.Solvent drums and containers shall be earthed.Work areas shall be cordoned off with appropriate warning signs and appropriate containmentto avoid damage to adjacent items.

Protective Coating


5.4 Scaffolding, Staging and Accessibility

In the UK, fixed scaffolding, staging, trolleys, cradles, etc. shall be used in accordance with theConstruction (Health, Safety and Welfare Regulations (1996) and where relevant, the OffshoreInstallations (Operational Safety, Health and Welfare) Regulations. In other countries safeworking practice shall be in accordance with a national standard to be agreed.All boards are to be firmly fixed or tied down at all times. No loose boards or items ofequipment are to be left overnight.Access shall be provided for painting and inspection of all surfaces in accordance with thisSpecification, and enabling free movement of operators taking account of the effect of wearingprotective clothing on safety aspects.

5.5 Coating Manufacturer's Information

Manufacturer's data sheets and materials safety data sheets containing information on HSEfactors shall be provided for all products used, prior to start of the work, and shall be availableon site at the job location.The sheets shall give specific information on the chemical composition of the materialsinvolved and precautions that must be taken.

5.6 Flammable Atmospheres (Area Classification)

The Client will advise area classifications for both plant design and construction/ maintenanceperiods. Some classification may preclude use of certain paint compositions.The classification for construction or maintenance periods will affect the minimum ratingpermissible for the Contractor's electrical equipment.The Contractor shall provide all necessary data for the proposed paint systems and solvents inorder to permit area classifications to be determined for the duration of the painting works.

5.7 Precautions in Cleaning and Application of Paints

Specific precautions shall be taken to avoid the build-up of flammable atmospheres fromcleaning solvents or paints in confined spaces. These shall include attention to weatherprotection, ventilation and type of lighting used.Work shall be carried out to company and client procedures and take account of all applicableHSE regulations and statutory requirements.

5.8 Personnel/ Items to be provided by the Contractor

The Contractor shall supply all necessary personnel, equipment, painting, inspection andrecording instruments, including (unless specified otherwise) the following: -• Evaluation of all hazards and provision of proposals to meet HSE requirements;• Skilled, experienced and competent personnel/ supervision (taking account of work

scheduling, transportation and accommodation requirements);• Product data and materials safety data sheets, including valid COSHH assessment;• Provision and maintenance of plant, equipment and tools including those listed below;• Scaffolding, staging, cradles, etc.;• The required lighting to meet the electrical classification for the work area;• Ventilation, spray booths, weather protection, heating;• Surface preparation equipment; grinders, blasting equipment, vacuum cleaners etc.;• Paint and thinners;• Paint mixing equipment, spraying equipment (including air compressors and generators)

rollers, brushes solvents and clean rags.

Protective Coating


6.0 PREPARATION FOR COATING

Prior to commencing any coating application surfaces shall be free of irregularities, millscaleand rust and surface contaminants.

6.1 Surface Irregularities

Surface irregularities shall be removed/ made smooth prior to surface preparation.Irregularities include: -• Sharp or rough edges and burrs;• Surface laminations and laps;• Weld spatter, and slag.Such irregularities, which appear after surface preparation by blast cleaning, shall be similarlytreated. If grinding is necessary it shall be subject to AMEC approval and checking ofremaining wall thickness.

6.2 Surface Contaminants

Steel that has been exposed to a salt laden atmosphere shall be tested for the presence ofsalts using the potassium ferricyanide test in accordance with BS 5493 Appendix G. Saltsshall be removed by washing.Cleaning to remove oil and grease shall be carried out using proprietary emulsifying agentsand then washing with clean water. The surface shall be allowed to dry before proceedingwith further preparation and painting.

6.3 Blast Cleaning

Open dry grit blasting is required in general for new construction.Open dry grit blasting is not acceptable to Maintenance Operations as it produces largeamounts of dust and grit, which contaminate a large area surrounding the location where gritblasting is being used. This can be controlled by use of the Vacublast system.Although, power tool cleaning may be more suitable in certain areas, it produces a poorlyprepared surface, hence the coating applied over it can be expected to fail in 18 months to 3years.The surface preparation method to be used for maintenance coating is precision wet abrasiveblasting. The advantages of wet abrasive blasting are as follows:• Removes most surface contaminates including millscale and profiles the steel surface;• Other trades can work safely in close proximity;• Virtually dust free;• Environmentally friendly;• Intrinsically safe and can be used in Zone 1 and 2 locations;• Extended coating life expectancy.Disadvantages of wet abrasive blasting are as follows:• Grit and water are used, though low quantities of each;• Grit has to be removed from site to avoid blocking open drains;• Sheeting and light enclosures are necessary to prevent slight grit spread;• Confined spaces and overhead working are difficult due to splash-back effect and poor

operation visibility.

Protective Coating


7.0 SELECTION OF COATING MATERIAL SUPPLIER

Materials for coatings shall be selected based on the following:• Prior long-term good experience;• Compliance with Health and Safety criteria specific to the location and Platform;• Qualification to NORSOK M-501;• Compatibility with substrate.

Protective Coating


8.0 QUALITY ASSURANCE

8.1 Inspection/ Quality Control

The Contractor shall nominate the person or persons responsible for inspection/ qualitycontrol. Details of the qualifications of such persons shall be submitted for approval.Verification of the Vendor's quality system is normally part of the pre-qualification procedure,and is therefore not specified in the core text of this specification.

8.2 Representative Panels

The Contractor shall prepare and coat two 300mm square sample plates with each coatingsystem required. This shall take place at least 7 days before starting the work and shall bewitnessed by the Contractor's Inspector.Any additional material samples and test panels to be provided by the Contractor will bespecified where necessary.

8.3 Coating Manufacturer's Support

The coating Manufacturer's technical representative shall support the coating Contractor by:-• Being on site at the start of application (when required);• Providing expertise in case of any problems with his material and its application;• Making sufficient site visits during the contract to ensure that the coatings are being

applied in accordance with the Manufacturer's recommendations;• Providing a written report to AMEC following each site visit.

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9.0 INSPECTION

Contractor is responsible for ensuring that the correct paint materials are obtained and applied,within the shelf life, such that work is performed to the standards of quality required by thisSpecification and meeting the appropriate HSE requirements.

9.1 General Requirements

Paintwork shall be subject to inspection on a continuous basis by the Contractor's nominatedperson who shall make a daily record and record the results of his inspections.

9.2 Contractor's Inspection Records

These shall include details of the following:-• Receipt and correct storage of coating materials including batch numbers and product

reference numbers.• Items being painted/ lined.• Location of work.• Ambient conditions recorded at least 4 times per day at the place of work. i.e. atmospheric

temperature/ relative humidity/ dewpoint/ metal surface temperature and general weatherconditions.

• Condition of abrasives and equipment.• Surface preparation quality and profile, recorded by replica technique at least 4 times per

day on prepared steel surfaces.• Colour, wet and dry film thickness of paint coating on each item painted.• Repairs or other further work necessary.• Calibration of inspection instruments.• Details of any problems together with details of their resolution and actions taken to

prevent their recurrence.• Signature of Contractor's personnel responsible for inspection approving individual items of

work.9.3 Contractor's Inspection Equipment

Contractor shall have available calibration certificates for all instruments.

9.4 Access and Facilities

Contractor shall provide access and facilities for Inspectors Inspection and testing equipmentcomprising of air and surface thermometers, hygrometers, surface profile gauges, wet and dryfilm thickness gauges, copies of the visual standard BS 7079-A1/ ISO 8501-1.

9.5 Documentation of the Work

Contractor shall ensure protection of the surroundings to painting works and shall ensuresubsequent safe disposal of materials or equipment used. He shall be responsible in the caseof any failure in this respect leading to damage, which shall be repaired and cleaned asappropriate.Contractor shall ensure protection of sensitive items during paint works, e.g. notices,nameplates, lettering, gauges, sight glasses, light fittings.Blasting dust and grit shall not be allowed to cause contamination of coated surfaces, whichare not yet dry.

Protective Coating


10.0 SELECTION OF COATING SYSTEM

SYSTEM 1 Jacket and Structure to Top of Jacket (including cellar deck), Bottom ofRisers, Caissons, Process Pipework to ESDV Termination.

SYSTEM 2 Topsides Structure, Carbon Steel Equipment & Pipework.SYSTEM 3 Insulated – Topsides Carbon Steel Equipment & PipeworkSYSTEM 4 Controlled Environment/ Internal Areas, Carbon Steel Structure, Equipment &

Pipework (excluding insulated systems)SYSTEM 5 Corrosion Resistant Alloy Equipment and Pipework, Insulated or operating

above 50°C (Stainless Steel 316) and 60°C (Duplex Steels and Alloy 825)SYSTEM 6 Stainless steel and Alloy 825 operating above 150°C, Carbon Steel operating

above 120°C, and Flare.SYSTEM 7 Carbon Steel, Stainless steel and Alloy 825 operating above 120°C (or

design above 150°C) where Access is Poor.SYSTEM 8 Galvanising and Coating over GalvanisingSYSTEM 9 DecksSYSTEM 10 Internal Surfaces of Carbon Steel Vessels (Hydrocarbon or Seawater)SYSTEM 11 Internal Surfaces of Carbon Steel Pipework – Corrosion ProtectionSYSTEM 12 Internal Surfaces of Pipework – Stainless Steel, Titanium & Nickel-Alloy

Insulation SpoolsSYSTEM 13 Internal Surfaces of Potable Water Tanks

NOTES:

Material that are inherently resistant to external corrosion in the relevant operating conditionssuch as copper nickel alloys, and titanium, do not require coating.Maintenance painting on live piping is acceptable provided any integrity concerns areassessed and cleared by the Safety Engineer.Stripe coating by brush shall be carried out on all welds, seams, corners and edges and shallbe in addition to the requirements of the Schedules.Coating of panels for electrical and instrument enclosures shall be in accordance with themanufacturers proprietary offshore system and shall be subject to review by the Purchaser.

Protective Coating


SYSTEM 1Scope JACKET AND STRUCTURE TO TOP OF JACKET (INCLUDING CELLAR DECK), BOTTOM OF RISERS, CAISSONS,

PROCESS PIPEWORK TO ESDV TERMINATION

OperatingTemperature

Up to 120°C.

Life > 12 years.1 Degrease using high-pressure detergent wash, followed by fresh water rinse.Pre-Surface

Preparation 2 Blow dry with clean dry compressed air.New Build Dry abrasive blast clean all steel:

Splash zone and region to top of jacket: Sa 3 (SIS 05 5900) to achieve an angularanchor profile of 75 – 125µm.

Submerged zone: Sa 2.5 (SIS 05 5900) to achieve an angularanchor profile of 50 – 75µm.

SurfacePreparation

Maintenance Wet abrasive blast clean all rusted and damaged areas to Sa 2.5 (including overallsweep blast of sound existing coating).Wet blast primer can be applied to a wet surface provided it is free of water or a slightlygingered dry surface. This is subject to client approval in each case. Flash rusting mustbe no more than light as defined in the SSPC/ NACE standard for UHP water jetting.

Time betweenCoats

5 – 24 hours

Metal Temp. 10°C to 50°CRelative Humidity < 85%Method Airless SpraySub-merged

Coat 1 Two component high solids high buildglass flake epoxy

450 µm DFT

Method Apply thermal spray aluminium by the Arc Spray process using high purity aluminium(minimum purity 99.5%)

Coat 1 TSA 200 µm OR 2 × 100 µmCoat 2 Air drying silicone aluminium sealer 40 µm DFT

Application

Splashzone andregion tolevel 1

Coat 3 Air drying silicone aluminium sealer 40 µm DFT

TSA in excess of 300 µm shall be rejected. The entire coating shall be removed and re-coated inaccordance with the specification.TSA is to be applied in two coats, unless it can be demonstrated that the required thickness can be achievedsuccessfully using a single coat application.The inspection and testing requirements for TSA application along with the qualification of the metal sprayoperators shall be as per NORSOK Standard M-501 Rev.4 1999.Adhesion pull-off values measured on the test plates shall meet the individual acceptance criteria of 9.0 MPa.Each test plate will be subject to inspection by all parties. In the event that any single adhesion measurementduring production drops to a minimum of 9.0 MPa, a further 3 readings shall be taken to achieve an overallaverage of 10.0 MPa. Each sample plate will be subjected to adhesion testing as specified in EN ISO 4624.Prior to the commencement of the contract all operatives engaged in the application of thermal metal materialsmust produce sample plates for each coating system. The thickness of the metal spray applied to a non-ferrous substrate is to be determined by using an, Elcometer345 electronic gauge (or equivalent) fitted with a non-ferrous probe.A sample plate is to be produced by each operative at the commencement of each working shift, this is to beused as a comparison sample for production work completed on that shift. All sample plates are to have themetal spray thickness recorded using an Elcometer gauge (or equivalent). The thickness recorded together withthe operative’s name /number is to be attached to the sample plate.Sharp edges and welds shall be rounded or smoothed by grinding (min. radius = 2mm).Where TSA is used no further coating is required to achieve specific colours.

Protective Coating


SYSTEM 2Scope TOPSIDES STRUCTURE, CARBON STEEL EQUIPMENT & PIPEWORK


Up to 120°C.

Life Dry blast (New build): > 12 yearsWet blast (Maintenance): > 8 yearsPower tool clean (Maintenance): 18 months to 3 years1 Degrease using high-pressure detergent wash, followed by fresh water rinsePre-Surface

Preparation 2 Blow dry with clean dry compressed airNew Build Dry blast to Sa 2.5 (SIS 05 5900) to achieve an angular anchor profile of 50 – 75µm.

Pre-surface preparation not requiredSurfacePreparation

Maintenance Wet abrasive blast clean all rusted and damaged areas to Sa 2.5.Feather (sweep blast) edges of any existing sound coating.Wet blast primer can be applied to a wet surface provided it is free of standing water or aslightly gingered dry surface, subject to Client approval. Flash rusting must be no morethan “light” as defined in the SSPC/ NACE standard for UHP water jettingORIf wet blasting not permitted, Power Tool Clean all rusted and damaged areas to ST3

Metal Temp. 10 °C to 50°CRelativeHumidity

< 85%

TimebetweenCoats

24 hours to 7 days

Method Airless Spray BrushCoat 1 New

BuildTwo pack, zinc rich epoxy primer 75 µm

DFTN/A

Maint. Two pack epoxy wet blast primer 50 µmDFT

Two pack, LTC surfacetolerant epoxy

100 µmDFT

Coat 2 NewBuild

Low temperature curing, twocomponent high solids high buildglass flake epoxy

400 µmDFT

N/A

Maint. Low temperature curing two-pack glass flake epoxy.

400 µmDFT

Two pack LTC highbuild epoxy undercoat

100 µmDFT

Coat 3 NewBuild

Isocyanate-free epoxy acrylictwo pack epoxy (for colourmatching only)

50 µmDFT

N/A

Maint. Isocyanate-free epoxy acrylictwo pack epoxy (for colourmatching only)

50 µmDFT

Two pack LTC highbuild epoxy undercoat

100 µmDFT

Application

Coat 4 N/A Isocyanate-free epoxyacrylic two pack (forcolour matching only)

50 µmDFT

Protective Coating


SYSTEM 3Scope INSULATED – TOPSIDES CARBON STEEL EQUIPMENT & PIPEWORK


Up to 150°C

Life Dry blast (New build): > 12 yearsWet blast (Maintenance): > 8 yearsPower tool clean (Maintenance): 18 months to 3 years1 Degrease using high-pressure detergent wash, followed by fresh water rinsePre-Surface

Preparation 2 Blow dry with clean dry compressed airNew Build Dry blast, to Sa 2.5 (SIS 05 5900) to achieve an angular anchor profile of 50 – 75µm.

Pre-surface preparation not requiredSurfacePreparation

Maintenance Wet abrasive blast clean all rusted and damaged areas to Sa 2.5 (including overall sweepblast of sound existing coating)ORIf wet blasting not permitted, Power Tool Clean all rusted and damaged areas to ST3 orSSPC SP11.

TimebetweenCoats

5 – 24 hours

Metal Temp. 10 °C to 50°C RelativeHumidity

< 85%

Method Airless sprayCoat 1 New Build Epoxy phenolic (high cross linked) 150 µm DFT

Maint. Epoxy phenolic (high cross linked) 150 µm DFTCoat 2 New Build Epoxy phenolic (high cross linked) 150 µm DFT

Application

Maint. Epoxy phenolic (high cross linked) 150 µm DFT

NOTE:Special precautions are required when using phenolic coatings to address the safety issues.

Protective Coating


SYSTEM 4Scope CONTROLLED ENVIRONMENT/ INTERNAL AREAS, CARBON STEEL STRUCTURE, EQUIPMENT &

PIPEWORK (EXCLUDING INSULATED SYSTEMS)OperatingTemperature

Up to 120°C.

Life Dry blast (New build): > 12 yearsPower tool clean (Maintenance): 18 months to 3 years1 Degrease using high-pressure detergent wash, followed by fresh water rinse.Pre-Surface

Preparation 2 Blow dry with clean dry compressed air.New Build Dry blast to Sa 2.5 (SIS 05 5900) to achieve an angular anchor profile of 50 – 75µm.

Pre-surface preparation not required SurfacePreparation

Maintenance Power Tool Clean all rusted and damaged areas to ST3.

TimebetweenCoats

5 – 24 hours

Metal Temp. 10 °C to 50°C RelativeHumidity

< 85%

Method Airless sprayCoat 1 LTC two pack surface tolerant epoxy aluminium-containing primer 100 µm DFT

Application

Coat 2 Two pack epoxy acrylic finish 50 µm DFT

Protective Coating


SYSTEM 5Scope CORROSION RESISTANT ALLOY EQUIPMENT AND PIPEWORK, INSULATED OR OPERATING ABOVE

50°C (STAINLESS STEEL 316) AND 60°C (DUPLEX STEELS AND ALLOY 825)OperatingTemperature

-50°C to 150°C.Protective coating is not required for continuous operating temperatures below -50°C.

Life > 10 years1 Degrease using high-pressure detergent wash, followed by fresh water rinse.Pre-Surface

Preparation 2 Blow dry with clean dry compressed air.New Build Blast clean using chloride-free aluminium oxide or silicon carbide to achieve a surface

profile of 75-100 µm.Blow dry with compressed air

SurfacePreparation

Maintenance Mechanically abrade with medium emery paper to provide keyTimebetweenCoats

5 – 24 hours


< 85%

Method Airless spray OR BrushNew Build Epoxy phenolic (high cross linked) 150 µm DFTCoat 1

Maint. Epoxy phenolic (high cross linked) 150 µm DFTNew Build Epoxy phenolic (high cross linked) 150 µm DFT

Application

Coat 2

Maint. Epoxy phenolic (high cross linked) 150 µm DFT

NOTE:Specification is only suitable for application to in-service pipework with a maximum surface temperature of 50°C.This restriction does not apply if process facilities are taken out of service.

Special precautions are required when using phenolic coatings to address the safety issues.

Protective Coating


SYSTEM 6Scope STAINLESS STEEL AND ALLOY 825 OPERATING ABOVE 150°C, CARBON STEEL OPERATING ABOVE

120°C, AND FLARE


-50 to 400°C.Protective coating is not required for continuous operating temperatures below –50°C.

Life > 20 years1 Degrease using high-pressure detergent wash, followed by rinse with fresh water with

maximum chloride concentration of 30ppm.Pre-SurfacePreparation

2 Blow dry with clean dry compressed air.New Build Carbon steel: Blast clean to Sa 3 (SIS 05 5900) to achieve an angular

anchor profile of 75 – 125µm using chilled iron grit.Stainless steel & Alloy 825: Blast clean using chloride-free aluminium oxide or silicon

carbide grit to achieve a surface profile of 75-100 µm.Blow dry with compressed air

SurfacePreparation

Maintenance Carbon steel: Power Tool Clean all rusted and damaged areas to ST3Stainless steel & Incoloy: Mechanically abrade with medium emery paper to provide

keyTimebetweenCoats

5 – 24 hours


< 85%

Method Apply thermal spray aluminium by the Arc Spray/ Flame Spray process using high purityaluminium (minimum purity 99.5%)

Coat 1 TSA 200 µm OR 2 × 100 µmCoat 2 Air drying silicone aluminium sealer 40 µm DFT

Application

Coat 3 Air drying silicone aluminium sealer 40 µm DFT

NOTES

TSA in excess of 300 µm shall be rejected. The entire coating shall be removed and recoated inaccordance with the specification.TSA is to be applied in two coats, unless it can be demonstrated that the required thickness can be achievedsuccessfully using a single coat application.The inspection and testing requirements for TSA application along with the qualification of the metal sprayoperators shall be as per NORSOK Standard M-501 Rev.4 1999.Regardless of application method used, adhesion pull-off values measured on the test plates shall meet theindividual acceptance criteria of 9.0 MPa. Each test plate will be subject to inspection by all partiesIn the event that any single adhesion measurement during production drops to a minimum of 9.0 MPa, a further3 readings shall be taken to achieve an overall average of 10.0 MPa. Each sample plate will be subjected toadhesion testing as specified in EN ISO 4624. Prior to the commencement of the contract all operativesengaged in the application of thermal metal materials must produce sample plates for each coating system. The thickness of the metal spray applied to a non-ferrous substrate is to be determined by using an, Elcometer345 electronic gauge (or equivalent) fitted with a non-ferrous probe.A sample plate is to be produced by each operative at the commencement of each working shift, this is to beused as a comparison sample for production work completed on that shift.All sample plates are to have the metal spray thickness recorded using an Elcometer gauge (or equivalent). Thethickness recorded together with the operative’s name /number is to be attached to the sample plate.Metal spray readings are to be taken after the application of the first coat. Any low thickness areas highlightedto the operative prior to the application of the second coat. These results are to be recorded. The thicknessreading process is to be repeated after the application of the second coat of metal spray and recorded. Sharp edges and welds shall be rounded or smoothed by grinding (min. R = 2mm).Where TSA is used no further coating is required to achieve specific colours.

Protective Coating


SYSTEM 7Scope CARBON STEEL, STAINLESS STEEL AND ALLOY 825 OPERATING ABOVE 120°C (OR DESIGN ABOVE

150°C) WHERE ACCESS IS POOR


-50 to 150 - 200°C.Protective coating is not required for continuous operating temperatures below -50°C.

Life 18 months to 3 years1 Degrease using high-pressure detergent wash, followed by rinse with fresh water with

maximum chloride concentration of 30ppm.Pre-SurfacePreparation

2 Blow dry with clean dry compressed air.SurfacePreparation

Carbon steel: Power tool clean to ST3.Stainless steel & Alloy 825: Abrade to provide a key with a surface profile of 75-100 µm.TimebetweenCoats

5 – 24 hours

MetalTemp.

10 °C to 50°C

RelativeHumidity

< 85%

Method Airless spray OR BrushCoat 1 Two pack, epoxy aluminium primer 100 µm DFT

Application

Coat 2 Two pack, epoxy aluminium primer 100 µm DFT

NOTES

Some manufacturer’s aluminium primers do not perform satisfactorily at temperatures in excess of 150°C.Therefore test data of tests carried out at maximum operating temperature using the proposed product shall besupplied to the Purchaser for review.

Protective Coating


SYSTEM 8Scope GALVANISING AND COATING OVER GALVANISING


-10 to 65°C.

Life > 10 yearsGalvanising As per Vendors’ developed procedure

1 Degrease using high-pressure detergent wash, followed by fresh water rinse.2 Blow dry with clean dry compressed air.

Pre-SurfacePreparation Coating

3 Previously painted galvanised steel requires pre-surface treatment followedby coats 3 – 5 of coating application.

Galvanising As per Vendors’ approved procedureSurfacePreparation Coating Abrade all new galvanising and aged galvanising by sanding or sweep-

blasting with fine abrasive (80 – 100 mesh) at 80 psi.Power Tool Clean all rusted and damaged areas to ST3.

Galvan-Ising

Method As per Vendors’approvedprocedure.

Handrails, gratings, ladders & safety hoops:Backing flanges and other

Not applicable for handrails, gratings, ladders and safety hoopsTimebetweenCoats

5 – 24 hours

MetalTemp.

10 °C to 50°C

RelativeHumidity

< 80%

Method Airless sprayCoat 1 Prime bare steel with a touch-up coat of LTC two pack,

surface tolerant epoxy aluminium primer100 µm DFT

Coat 2 Phosphoric acid based etching solution. 5 -20 µm DFTCoat 3 Apply full overall intermediate coat of two pack, surface

tolerant LTC epoxy MIO primer100 µm DFT

Coat 4 Two pack epoxy 50 µm DFT

Application

Coating

Coat 5 Two pack epoxy (Only required if specific final light colour isrequired)

50 µm DFT

NOTE:Special precautions are required when using phosphoric acid to address the safety issues.

Protective Coating


SYSTEM 9Scope DECKS


-20 to 50°C.

Life Dry blast to Sa 2.5 (New build): > 12 yearsWet blast (Maintenance): > 8 yearsPower tool clean (Maintenance): 18 months to 3 years

Pre-SurfacePreparation

Degrease using high-pressure detergent wash followed by fresh water rinse (as necessary).Blow dry with clean dry compressed air.

NewBuild

Dry blast to Sa 2.5 (SIS 05 5900) to achieve an angular anchor profile of 50 – 75µm.Pre-surface preparation not required

SurfacePreparation

Maint. Wet abrasive blast clean all rusted and damaged areas to Sa 2.5.Feather (sweep blast) edges of any existing sound coatingBlow dry with clean dry compressed airORPower Tool Clean all rusted and damaged areas to ST3

Application MetalTemp.

10 °C to 50°C

RelativeHumidity

< 85%

TimebetweenCoats

24 – 48 hours

Method Airless Spray Brush Primer & TrowelCoat 1 Two pack zinc rich epoxy 75 µm

DFTSurface tolerant aluminium 125 µm

DFTCoat 2a Aggregate dressed heavy-duty

anti-slip solventless epoxy (coaltar free) deck coating by trowelto a wet film thickness of 3.0 mmprior to dressing with heavy non-sparking aggregate.

3mmDFT

Aggregate dressed heavy-duty anti-slip solventless epoxy (coal tar free)deck coating by trowel to a wet filmthickness of 3.0 mm prior todressing with heavy non-sparkingaggregate.

3mmDFT

Coat 2b 2 pack epoxy + non-sparkingaggregate

250µm 2 pack epoxy + non-sparkingaggregate

250µm

Coat 3 Apply by brush isocyanate-freeepoxy sealer coat after screedhas cured for 24 hours andsurplus aggregate has beenremoved. Markings for escaperoutes to be white hatched lines.

50 µmDFT

Apply by brush isocyanate-freeepoxy sealer coat after screed hascured for 24 hours and surplusaggregate has been removed.Markings for escape routes to beapplied as white hatched lines.

50 µmDFT

NOTES:Coat 2a to be used for the following:

All areas on the weather deck. Primary access routes, including escape routes on all remaining decks. Lay down areas

Coat 2 B to be used for other deck area apart from galvanised gratings and areas covered by 2a.If screed system for primary decks cannot be applied due to time constraints, apply EPOK TREAD tile system asper manufacturer’s recommendations.

Protective Coating


SYSTEM 10Scope INTERNAL SURFACES OF CARBON STEEL VESSELS (HYDROCARBON OR SEAWATER)OperatingTemperature

-50 to 110°C.Protective coating is not required for continuous operating temperatures below -50°C.

Life If %Benzene in crude & chemicals ≥ 2%: 4 – 7 yeIf %Benzene in crude & chemicals < 2%: > 12 ye1 Degrease using high-pressure detergent wash, followed by fresh water rinse.Pre-Surface

Preparation 2 Blow dry with clean dry compressed air.New Build Dry abrasive blast clean all areas to Sa 2.5 with a blast profile of 50 – 100 µm.Surface

Preparation Maintenance Wet abrasive blast clean all exposed and damaged areas to Sa 2.5 with a blast profileof 50 – 100 µm.Sweep blast existing sound coating.Where vessels have been in service, a second blast clean is essential after theinternal examination/repairs to ensure all surface contamination is removed.Blow dry with clean dry compressed air

TimebetweenCoats

5 – 24 hours


< 85%

Method Airless sprayCoat 1 Two pack, vinyl ester holding primer, buff colour 50 µm DFTCoat 2 Glass reinforced, vinyl ester, buff colour 500 µm DFTCoat 3 Glass reinforced, vinyl ester, buff colour 500 µm DFT

Application

Coat 4 Glass reinforced vinyl ester, white colour.2nd coat of glass flake, vinyl ester coating can be replaced withmodified vinyl ester coating containing silicon carbide for improvedabrasion resistance where fluids contain sand

500 µm DFT

NOTES:Primer to be optional.All internal welds are to be ground smooth where accessible. Inaccessible welds shall be inspected forsmoothness and freedom from weld spatter and slagFlange faces are to be rebated as per the drawing in figure 1in order that the coating can be carried from thepipe bore out across the inner part of the flange face. This procedure will prevent service attack of gasket sealface.Accessible sharp edges to be coated shall be ground to a minimum radius of 1.5mm.Each internally coated vessel shall be marked in black letters “GLASS FLAKE LINED – NO HOT WORK”.Replacement coatings shall utilise the same coating type, from the same Manufacturer as the original coating. Ifthis cannot be achieved compatibility tests shall be carried out.Vinyl ester coatings are suitable for immersion service up to temperatures of 100°C.Localised general wastage of internal surfaces shall be protected using a laminating resin reinforced with glassroving as per the manufacturer’s recommendations.All internally lined vessels shall be holiday detected in accordance with NACE RP0-188. Repairs shall be donewith the same materials as used for original lining. Only repaired areas should be re-holiday checked afterrepairs. Do not recheck the lining that has already been checked and found to be holiday free. Consult thevendor for proper surface preparation to repair areas.

Protective Coating


SYSTEM 11Scope INTERNAL SURFACES OF CARBON STEEL PIPEWORK – CORROSION PROTECTION


-50 to 105°C.Protective coating is not required for continuous operating temperatures below -50°C.

Life If %Benzene in crude & chemicals ≥ 2%: 4 – 7 yeIf %Benzene in crude & chemicals < 2%: > 12 ye1 Degrease using high-pressure detergent wash, followed by fresh water rinse.Pre-Surface

Preparation 2 Blow dry with clean dry compressed air.SurfacePreparation

Dry abrasive blast clean all areas to Sa 2.5 with a blast profile of 50 – 100 µm.Sweep blast existing sound coating.Where pipe spools been in service, a second blast clean is essential after the internalexamination/repairs to ensure all surface contamination is removed.Blow dry with clean dry compressed airTimebetweenCoats

5 – 24 hours


< 80%

Method Airless sprayCoat 1 Two pack, vinyl ester holding primer, buff colour 50 µm DFTCoat 2 Glass reinforced, vinyl ester, buff colour 500 µm DFTCoat 3 Glass reinforced, vinyl ester, buff colour 500 µm DFT

Application

Coat 4 Glass reinforced vinyl ester, white colour.2nd coat of glass flake, vinyl ester coating can be replaced withmodified vinyl ester coating containing silicon carbide for improvedabrasion resistance where fluids contain sand

500 µm DFT

NOTES:Primer to be optional.Replacement coatings shall utilise the same coating type, from the same Manufacturer as the original coating. Ifthis cannot be achieved compatibility tests shall be carried out.Vinyl ester coatings are suitable for immersion service up to temperatures of 105°C.Localised general wastage of internal surfaces shall be protected using a laminating resin reinforced with glassroving as per the manufacturer’s recommendations.Inter-coat and final coat spark testing shall be done using kV settings recommended by coating supplier.For corrosive service flange faces are to be weld overlaid with an appropriate corrosion resistant alloy, as perthe material selection report and pipe class.Flange faces are to be rebated as per the drawing in figure 1 in order that the coating can be carried from thepipe bore out across the inner part of the flange face to prevent service attack of gasket seal face.All internal welds are to be ground smooth where accessible. Inaccessible welds shall be inspected forsmoothness and freedom from weld spatter and slagAccessible sharp edges to be coated shall be ground to a minimum radius of 1.5mmAfter completion of internal coating, the external surfaces shall be blast cleaned and coated as per system 2. Each internally coated spool shall be marked in black letters ‘GLASS FLAKE LINED – NO HOT WORK,HANDLE WITH CARE’.All internally lined pipe spools shall be holiday detected in accordance with NACE RP0-188. Repairs shall bedone with the same materials as used for original lining. Only repaired areas should be re-holiday checked afterrepairs. Do not recheck the lining that has already been checked and found to be holiday free. Consult thevendor for proper surface preparation to repair areas.

Protective Coating


Each potential coating Contractor shall carry out a coating test prior to award of contract. Prior test resultswould be reviewed if relevant. The test shall involve the following:• Two internal coatings shall be applied to fabricated pipe spools manufactured from any grade of steel of

nominal size 1.5 - 2” and 6” - 10”. For the purpose of this exercise it would be acceptable to completely weldthe root and hot passes only. The spools shall incorporate a 90° long radius elbow welded to two pipes anda flange at one end. The minimum length of the pipe sections shall be 2m.

• The test spool shall be internally coated and inspected fully in accordance with this specification.• On completion of all coating stages the test spool should be sectioned longitudinally along the intrados and

extrados of the elbow and one side of the flange. Coating thickness checks shall be made at d/4 intervals(where d = pipe diameter) along the cut edges at a magnification of ×10 and the Holiday test shall berepeated on all exposed surfaces.

Protective Coating


SYSTEM 12Scope INTERNAL SURFACES OF PIPEWORK – STAINLESS STEEL, TITANIUM & NICKEL-ALLOY INSULATION

SPOOLS


Rubber coating: -10°C to 85°C (standard system)/ 110°C (special system).Epoxy coating: -50 to 110°C

Life > 5 yearsPre-SurfacePreparation

Degrease using high-pressure detergent wash followed by rinse with fresh water with maximumchloride concentration of 30ppm.Blow dry with clean dry compressed air.

SurfacePreparation

Blast clean using chloride-free aluminium oxide or silicon carbide grit to achieve a surface profile of75-100 µm.Blow dry with compressed air

MetalTemp.

10°C to 50°C

RelativeHumidity

< 50%

TimebetweenCoats

6 – 48 hours (epoxy coating)

Method Rubber Lining (Seawater duty) Epoxy Lining (Hydrocarbon duty)Coat 1 Copon KS16W 50 - 75 µm DFTCoat 2 Copon KS16W 50 - 75 µm DFTCoat 3 Copon KS16W 50 - 75 µm DFT

Application

Coat 4

See below

Copon KS16W 50 - 75 µm DFT

NOTES:Rubber CoatingSpools are to be designed to contain no more than one bend/ elbow.Internal flange weld roots must be ground flush and the flange/ bore edge radiused to 5.0 mm (equal to therubber coating thickness).Spool dimensions must be adjusted to allow for 5.0 mm thick ebonite rubber to be applied to flange faces.Seawater - 5.0 mm thick neoprene, Shore A Hardness 65 ± 5.Produced Water - 5.0 mm thick abrasion resistant natural rubber, Shore A Hardness 45 ± 5. Maximumoperating temperature of this rubber is 85°C. Higher operating temperatures necessitate use of neoprene whichdoes not have such good abrasion resistance.Flange faces shall be lined with ebonite with a thickness of 5 mm and Shore D Hardness 70 ± 5 This isrelatively incompressible and still requires that a suitable flat rubber gasket is used for rubber lined flange faces.All rubber coatings shall be cured by applying the vulcanising process in a steam autoclave.

Protective Coating


Epoxy LiningEach potential coating Contractor shall carry out a coating test prior to award of contract. Prior test resultswould be reviewed if relevant. The test shall involve the following:• Two internal coatings shall be applied to fabricated pipe spools manufactured from any grade of steel of

nominal size 1.5 - 2” and 6” - 10”. For the purpose of this exercise it would be acceptable to completely weldthe root and hot passes only. The spools shall incorporate a 90° long radius elbow welded to two pipes anda flange at one end. The minimum length of the pipe sections shall be 2m.

• The test spool shall be internally coated and inspected fully in accordance with this specification.• On completion of all coating stages the test spool should be sectioned longitudinally along the intrados and

extrados of the elbow and one side of the flange. Coating thickness checks shall be made at d/4 intervals(where d = pipe diameter) along the cut edges at a magnification of ×10 and the Holiday test shall berepeated on all exposed surfaces.

Accelerated drying times can be achieved as follows:Temperature, °C Overcoating Time, Hours

15 2420 1625 1230 835 6

Maximum time between coatings: 48 hours.The completed coating shall be cured in accordance with the following guidelines prior to entry into service:

Temperature, °C Curing Time, Days20 732 4

The coating shall be brush applied to the inside of small diameter nozzles where spraying is impractical. It ispermissible to apply Copon KS16W by pouring successive coatings through spools if diameter/ configuration isunsuitable for spray application.Flange faces are to be rebated as per the drawing in figure 1 in order that the coating can be carried from thepipe bore out across the inner part of the flange face. This procedure will prevent service attack of gasket sealface.The coating shall stop on the flange rebate.All internally lined pipe spools shall be holiday detected in accordance with NACE RP0-188. Repairs shall bedone with the same materials as used for original lining. Only repaired areas should be re-holiday checked afterrepairs. Do not recheck the lining that has already been checked and found to be holiday free. Consult thevendor for proper surface preparation to repair areas.

Protective Coating


SYSTEM 13Scope INTERNAL SURFACES OF POTABLE WATER TANKS


-10 to 50°C

Life > 10 years1 Degrease using high-pressure detergent wash, followed by fresh water rinse.Pre-Surface

Preparation 2 Blow dry with clean dry compressed air.New Build Dry abrasive blast clean all areas to Sa 2.5 (SIS 05 5900) to achieve an angular

anchor profile of 50 – 75µm.Sweep blast existing sound coating

SurfacePreparation

Maintenance Dry abrasive blast clean all exposed and damaged areas to Sa 2.5 with a blast profileof 50 µm.Sweep blast existing sound coating.Where vessels have been in service, a second blast clean is essential after theinternal examination/repairs to ensure all surface contamination is removed.Blow dry with clean dry compressed air

TimebetweenCoats

5 – 24 hours


< 85%

Method Heated airless spray

Application

Coat 1 Solvent free 100% solids epoxy coating that is approved by theDrinking Water Inspectorate (DWI) or Norwegian Health Authority forpotable water

600 µm DFT

NOTE

Spark test after minimum 24 hours curing using a kV setting recommended by coating manufacturer.All internally lined vessels shall be holiday detected in accordance with NACE RP0-188. Repairs shall be donewith the same materials as used for original lining. Only repaired areas should be re-holiday checked afterrepairs. Do not recheck the lining that has already been checked and found to be holiday free. Consult thevendor for proper surface preparation to repair areas.

Protective Coating


11.0 PICKLING AND PASSIVATION

11.1 Base Material

All stainless steel base materials (316L, 22%Cr duplex, 25%Cr super duplex, 6%Mo, 17/4PHetc.) require to be supplied in the pickled and passivated condition.

11.2 After Welding

Pickling and passivation of weld areas is required for the following duties:11.2.1 Seawater (25%Cr super duplex, 6%Mo)

Internal surfaces.11.2.2 Corrosive duty (including all process) (stainless steels, e.g. 316L, 22%Cr & 25%Cr duplex)

External surfaces that are not subsequently protected by coating.11.2.3 Clean duty (e.g. nitrogen, air) (stainless steel 316L)

Not required.

Protective Coating


12.0 COLOUR SCHEDULE

12.1 GeneralUnless stated otherwise, British Standard colours referred to are to BS 4800-1989.All equipment, pipework, valves flanges and fittings are to be painted throughout the entire length, including inflange bolt holes in accordance with ground colour specified.Working pressures and arrows indicating direction of flow should be shown on ground colour, preferably in black(or white where contrast is required) near to junctions, valves and vessels.

12.2 Pipework IdentificationColour banding maybe by painting or by using a durable adhesive PVC tape, which must be suitable for externalweathering. The tape should be applied in accordance with manufacturer’s instructions. Banding shall beapplied at:• Bulkheads, deck and other penetrations, major changes of direction• Package and vessel termination points, pipe junctions• Positions such that banding sets are normally visible and no greater than 7m apart.The primary colour (outside) banding shall be placed directly adjacent to and on each side of, the secondarycolour (inside) band. Width of bands shall be 150mm. A flow direction arrow in black shall be located on thepipe downstream of the colour bands on pipe-work. Arrows shall be 150 - 200 mm long x 25mm wide at thebase of the band head and at the tail.Stainless steel pipework and pipework coated with thermal spray aluminium shall have service indicated bycolour banding alone, unless otherwise specified.Insulated piping shall have service indicated by colour banding alone over the cladding.Colour banding shall be in accordance with the following table and if required with BS 1710:1984 andamendment No 1-1989.

12.3 Piping System Colour SchedulePiping shall be painted white in accordance with BS4800 00E55. For corrosion resistant alloys where protectivecoating is not required, and for thermally sprayed aluminium surfaces, the material shall be left self-coloured.All piping shall be identified by service using colour bands in accordance with table 1. These colours shallnormally be applied by coloured adhesive plastic tape markings rather than by painting, and such markings shallas a minimum be placed at all bulkhead and deck penetrations, either side of every valve, at each tee or branchconnection. In order to avoid any requirement for separate marking of flow direction with arrows and forindividual service names, the colour marking tapes may incorporate flow arrows and service names if desired.

Service Name Outer Bands BS4800Colour

Inner Bands (TOBS1710 in bold)

BS4800 Colour

Instrument Air Light Blue 20 E 51Plant Air Light Blue 20 E 51Biocide Brown 06D43 Lettering - “Biocide”Base Oil Brown 06 C 39 White 00 E 55Chemical Additive Brown 06D43 Lettering - “Chemical Additive”Glycol Brown 06 D 43H.P. Cement Slurry Black 00 E 53 White 00 E 55Corrosion Inhibitor Brown 06 E 50 (Lettering)L.P. Cement Slurry Black 00 E 53 White 00 E 55Methanol Violet 22 D 45L.P. Cement Powder Black 00 E 53 White 00 E 55Closed Drains Grey 10 A 11Non-hazardous Open Drains Grey 10 A 11 Green 14 E 51Hazardous Open Drains Grey 10 A 11 Yellow 08 E 51Emulsion Breaker Brown 06 D 43 (Lettering)

Protective Coating


Service Name Outer Bands BS4800Colour

Inner Bands (TOBS1710 in bold)

BS4800 Colour

Firefighting Foam Black 00 E 53 Red 04 E 53Fuel Gas Yellow 08 E 51 Lt. Orange BS 381c shade 557Aviation Fuel Brown 06 C 39 Yellow BS 381c shade 309Diesel Oil Brown 06 C 39 Grey 00 A 05CO2 Red 04 E 53Halon Red 04 E 53Inert Gas Light Blue 20 E 51 Black 00 E 53Sodium Hypochlorite Brown 06 E 50 LetteringH.P. Drilling Mud Black 00 E 53 Blue 20 E 51Choke and Kill Fluids Black 00 E 53 Violet 22 C 37L.P. Drilling Mud Black 00 E 53 Blue 18 E 53L.P. Mud Additive Powders(Baryte/Bentonite)

Black 00 E 53

Hydraulic Fluid (Oil Based) Brown 06 C 39 Black 00 E 53Hydraulic Fluid (water based) Brown 06 D 43 Black 00 E 53Lube Oil Brown 06 C 39 Pink 04 C 33Seal Oil Brown 06 C 39 Yellow 08 C 35Utility Oil Brown 06 C 39Hydrocarbon Condensate Yellow 08 E 51 Brown 08 C 35Hydrocarbon Gas Yellow 08 E 51 White 00 E 55Cold Hydrocarbons Yellow 08 E 51 White 00 E 55Scale Inhibitor Brown 06 D 43 (Lettering)Atmospheric Vent Yellow 08 E 51 Silver Grey 10 A 03Vacuum Light Blue 20 E 51 White 00 E 55H.P. Flare Yellow 08 E 51 Grey 10 A 11L.P. Flare Yellow 08 E 51 Grey 10 A 07Vessel Trim Colour as vessel serviceSeawater Green 14 E 51Brine (Completion Fluid) Green 14 E 51 Green 12 C 39Cooling Medium Green 14 E 51 White 00 E 55Potable Water Green 14 E 51 Auxiliary Blue 18 E 53Firewater Green 14 E 51 Red 04 E 53Heating Medium Green 14 E 51 Brown 06 D 43Flushing / Jet Water Yellow 08 E 51 Green 14 E 51Drilling Water Green 14 E 51 Brown 06 C 39Produced Water Yellow 08 E 51 Green 14 E 51Service Water Green 14 E 51 Auxiliary Blue 18 E 53BOP Test Water Green 14E51 Auxiliary Blue 18E53Sewage Grey 10 A 11 Black 00 E 53Exhaust Gas Thermal spray aluminiumBiocide Brown 06D43 Lettering - “Biocide”pH Correction Brown 06D43 Lettering - “pH Correction”Cuttings Injection (H.P.) Black 00 E 53Cuttings Slurry (L.P.) Black 00 E 53

Protective Coating


12.4 Equipment and Structure Colour Schedule

Equipment and platform coating shall be in accordance with this Colour Schedule exceptwhere subject to mandatory Government Regulations.All colours shall conform to BS 4800-1989 (five reference characters) and BS 381c (threereference characters).All machinery should be accepted in vendor standard colours unless there is minimal costimpact. Exceptions are mandatory safety items such as coupling guards, cranes etc. wherethe specified colours are required.

Ground Colour Additional ColourItem/ Area

Colour BSShade

Markings Band BSShade

Topsides structure GREY 00A01Splash zone to top of jacket As applied

(TSA)N/A

Solid stairtreads and walkways DARK GREEN Jotun137

Kickplates OFF WHITE 08B15Internal non-slip surfaces DARK SEA

GREY638

N/A

Runway beams YELLOW 08E51 Weight limit in150 mm highletters

BLACK

Temporary supports, seafastenings etc.

ORANGE 06E51

Installation bumpers GREEN 14E51Installation guides (includingpins)

RED 04E53

N/A

Designated laydown areas YELLOW/BLACK

Perimeter to be marked with 75mm yellowBand. Inside area to be painted withalternating black/ yellow diagonal stripes500mm wide ters

STEELWORK

In-deck tanks Deck plate forming tank roof to be painted with diagonal 500mm wideRed/White stripes. Perimeter of tank roof to be marked with a 755mmwhite band broken at 3000mm intervals by the words “XXX TANK”stencilled in white 100mm high lettering

Tanks WHITE 00E55 N/ATOWERS ANDVESSELS

CRUDE OIL ANDGAS PROCESSING

Towers, Vessels, HeatExchangers

WHITE 00E55 YELLOW 00E51

WELL XMAS TREES SILVER N/AWELLHEAD CONTROL EQUIPMENT RED 539 N/AWELL SUBSURFACE COMPLETION – REPAIR OR SERVICEEQUIPMENT

Manufacturer'sstandardcolours

N/A

ELECTRICAL H.V. Switchgear;L.V. Switchgear;Electrical Panels/ Cubicles;Distribution Boards;Transformers;L.V. Motors

LIGHTADMIRALTYGREY(Per supplyagreement)

697 N/A

Protective Coating



Colour BSShade


INSTRUMENTATION Instruments, Regulators;Instruments Panels;Insts for Panel Mounting;Mimic diagram panel;Mosaic panel;Instrument housings;Instrument air or gas.All equipment should beaccepted in vendor standardcolours unless there is minimalcost impact. Exceptions aremandatory safety items such ascoupling guards, cranes etc.where the specified colours arerequired.

EAU DE NIL 216 N/A

All machinery motors,compressors etc.

BLUE 18E53

Machinery hand controls, gearcases, couplings guards, cautionsignals, moving equipment (suchas overhead cranes, etc.), chainhoists, runway beams, etc.

YELLOW 08E51

MACHINERY

Pumps OFF WHITE 08B15

N/A

Emergency shower booths GREEN 14E53 Diagonal Lines WHITE 00E55Fire Fighting Equipment RED 539 N/ADangerous material WHITE 00E55 Checks RED 539Safe Materials WHITE 00E55 Checks GREEN 14E53Protection Materials GREEN 14E53 N/A N/A N/AEscape Routes- 1200mm wideband to include 75mmfluorescent edge marking

75mm WideBands atedges ofEscape Route

Photo-luminescent Paint

SAFETY

Emergency Exit Door Outlines/Handles & Pushbars

DARKGREEN

Jotun137

50mm widestrip arounddoors

Exterior Paintwork of:i) Plant Houseii) Ventilatorsiii) Modules

OFF WHITE 08B15

Interior Paintwork of:i) Control Roomsii) Modulesiii) Lavatories, etc.

OFF WHITE(or to suitarchitecturalfeatures)

08B15

MISCELLANEOUS

Information Signs BLUE 18E53

N/A

Protective Coating



Colour BSShade


General - Internal- External OFF WHITE 08B15DOORS

(Carbon Steel only,Stainless Steeldoors to beunpainted)

Control Room - Internal-External

RED 539N/A

Helicopter Landing Identification Statutoryrequirements

Communication Aerial Towers WHITE 00E55Power units ORANGE 557Hoists and davits ORANGE 557Crown and travelling blocks ORANGE 557Swivels RED 539

N/A

Crane Jibs and Gantries,Derricks and Masts, ExhaustStacks

WHITE 00E55 Band Intervalto be scaled inaccordancewith height/length of towerjib so that amin of 3 REDbands areclearly visible.Bands not lessthan 0.5m notmore than 6m

RED 539

Crane and Hoist MachineryHousings

ORANGE 557

PLATFORM,PRODUCTION WORKAND CRANES,HOISTS, MOBILEWINCHES, DRILLINGAND PRODUCTIONNSITES

Crane Driver Compartment RED 557

N/A

Protective Coating

Page 35 of 35

FIGURE 1 FLANGE REBATE FOR GLASS FLAKE EPOXY LINED VESSELS AND PIPEWORK

RF WN Flange

NOTE:

Bore

Rebate Depth (see note 1)

Rebate width = 1/3of flange face width

Gasket

Coating

5° ± 1° radius (typ)

1. Coating thickness required in the rebated area shall be as referenced in theapplicable table + 0mm / - 0.1mm

2. Rebate diameter shall be 10mm - 20mm greater than the diameter of theinner sealing face of the gasket.

Corrosion ResistantOverlay (alloy 625) to extend20 mm into bore of flange

20 mm

Flange Face

Documents

AMEC Coating Specification 01