OM CODE SUMMARY December 2005

OM CODE SUMMARYOM CODE SUMMARYDecember 2005December 2005

ISTOG Meeting January 2006ISTOG Meeting January 2006

ISTA SubgroupISTA Subgroup

ISTA—General RequirementsISTA—General Requirements Code Cases are going to be Code Cases are going to be

incorporated into OM Code ASAP. incorporated into OM Code ASAP. Code Cases are going to have Code Cases are going to have

“applicability” added (e.g. 1995 “applicability” added (e.g. 1995 edition thru the 2005 addenda). Any edition thru the 2005 addenda). Any Code being used which is NOT Code being used which is NOT “applicable” will require relief from “applicable” will require relief from NRC.NRC.

ISTA SubgroupISTA Subgroup

ISTA—General RequirementsISTA—General Requirements Discussion regarding “practical” and Discussion regarding “practical” and

“practicable”. NRC was concerned that in many “practicable”. NRC was concerned that in many instances “practical” constitutes “minor instances “practical” constitutes “minor inconvenience” such as placing a ladder to inconvenience” such as placing a ladder to perform the activity. Ongoing discussions.perform the activity. Ongoing discussions.

Determined that individual subgroups would be Determined that individual subgroups would be responsible for updating/standardizing Code responsible for updating/standardizing Code Cases in lieu of ISTA being solely responsible for Cases in lieu of ISTA being solely responsible for the updating/standardization of the Code Cases.the updating/standardization of the Code Cases.

Determined that ISTA is NOT an “editorial” review Determined that ISTA is NOT an “editorial” review group. All subgroups are responsible for group. All subgroups are responsible for “content”.“content”.

ISTC SubgroupISTC Subgroup

ISTC---ValvesISTC---Valves Revise Categories of Valves (Cat A vs. Cat AC)—Revise Categories of Valves (Cat A vs. Cat AC)—

Recent regulatory inquiries regarding the Recent regulatory inquiries regarding the determination of Cat A and AC valves. Will be determination of Cat A and AC valves. Will be evaluated prior to next OM Code meeting (July evaluated prior to next OM Code meeting (July 2006).—V-96-032006).—V-96-03

Rapid Acting Valves, Stroke Testing of 2-4 second Rapid Acting Valves, Stroke Testing of 2-4 second valves. V-02-01---valves. V-02-01---CLOSEDCLOSED. No Action Taken.. No Action Taken.

Incorporation of OMN-1 into ISTC. V-97-01. OMN-Incorporation of OMN-1 into ISTC. V-97-01. OMN-1 Revision 1 should go for ballot NLT January 1 Revision 1 should go for ballot NLT January 2006. Once Approved—then to OM Code, ISTC as 2006. Once Approved—then to OM Code, ISTC as an Appendix III. Probably in 2007 Edition of OM an Appendix III. Probably in 2007 Edition of OM Code. OMN-11 has been separated from OMN-1.Code. OMN-11 has been separated from OMN-1.


ISTC---ValvesISTC---Valves Appendix I and ADS valve test schemes is Appendix I and ADS valve test schemes is

working.working. OMN-8 is being revised for applicability and being OMN-8 is being revised for applicability and being

incorporated into OM Code, ISTC-5100. OMN-8 incorporated into OM Code, ISTC-5100. OMN-8 should be approved by ASME in early 2006. should be approved by ASME in early 2006. Should be in 2006 addenda. Should be in 2006 addenda.

Inquiry V05-01C—Inquiry on “test interval” being Inquiry V05-01C—Inquiry on “test interval” being the frequency of testing for the CV. For example, the frequency of testing for the CV. For example, if the CV is forward tested in RFO, then the if the CV is forward tested in RFO, then the reverse testing must be performed during the reverse testing must be performed during the RFO.RFO.

Response: YesResponse: Yes


ISTC---ValvesISTC---Valves Inquiry:Inquiry:

• Code edition: ASME/ANSI OM-1987/1988a, Part Code edition: ASME/ANSI OM-1987/1988a, Part 10 through the OM Code 2001 Edition OMb 10 through the OM Code 2001 Edition OMb 2003 Addenda.2003 Addenda.

Question: Is it a requirement of Table Question: Is it a requirement of Table ISTC-3500-1 (Table 1) and applicable ISTC-3500-1 (Table 1) and applicable sections of ISTC-3630 (Para. 4.2.2.3), that sections of ISTC-3630 (Para. 4.2.2.3), that Category A valves (other than CIVs), be Category A valves (other than CIVs), be individually leak tested?individually leak tested?

Response: No {Reference ISTC-3630(e), Response: No {Reference ISTC-3630(e), ISTC-3630(f)}.ISTC-3630(f)}.

ISTB SubgroupISTB Subgroup

ISTB---PumpsISTB---Pumps OMN-6, Revision 1, Digital Instrument OMN-6, Revision 1, Digital Instrument

Range of 90%, approved should be Range of 90%, approved should be approved in December 2005. Should be in approved in December 2005. Should be in 2006 Addenda of OM Code. Revision was 2006 Addenda of OM Code. Revision was primarily for “applicability statement”.primarily for “applicability statement”.

OMN-6 should be incorporated into 2006 OMN-6 should be incorporated into 2006 addenda of OM Code.addenda of OM Code.

Revision to ISTB-6200 to provide Revision to ISTB-6200 to provide clarification for use of Alert Range Analysis clarification for use of Alert Range Analysis Requirements. Should be approved 2006. Requirements. Should be approved 2006. (P00-02)(P00-02)


ISTB---PumpsISTB---Pumps OMN-9, Code case for use of pump OMN-9, Code case for use of pump

curves being revised for curves being revised for “applicability” (and to resolve NRC “applicability” (and to resolve NRC concerns regarding the required concerns regarding the required measurements). Should be approved measurements). Should be approved in 2006.in 2006.


ISTB---PumpsISTB---Pumps 3.4.4* 3.4.4* Could the fact that the upper motor Could the fact that the upper motor

bearing housing is not accessible on many bearing housing is not accessible on many vertical shaft pumps be addressed on a vertical shaft pumps be addressed on a generic basis, so a relief request would not generic basis, so a relief request would not be necessary?be necessary?

If this issue is a generic concern, the Code If this issue is a generic concern, the Code committees could consider revising the Code to committees could consider revising the Code to address these pumps. As discussed previously, address these pumps. As discussed previously, the staff has no plans to supplement GL 89-04 to the staff has no plans to supplement GL 89-04 to provide generic relief. Specific relief has been provide generic relief. Specific relief has been granted from the Code vibration requirements granted from the Code vibration requirements where access to the upper motor bearing housing where access to the upper motor bearing housing is inaccessible (e.g., Hatch Safety Evaluation is inaccessible (e.g., Hatch Safety Evaluation dated June 13, 1994, Section 3.1.3.1).dated June 13, 1994, Section 3.1.3.1).


ISTB---PumpsISTB---Pumps P98-03, regarding instrumentation P98-03, regarding instrumentation

test failures (Question 3.3.1 test failures (Question 3.3.1 Workshop Summary). Workshop Summary). ClosedClosed. No . No Code change required.Code change required.

ISTB SubgroupISTB SubgroupISTB---Pumps 3.3.1* 3.3.1* If a pump fails a test, and it is obvious that the If a pump fails a test, and it is obvious that the

failure was due to an instrument problem, can the failure was due to an instrument problem, can the pump be declared operable when the failed pump be declared operable when the failed instrument is identified? What is the Code instrument is identified? What is the Code requirement regarding the time allowed for retest requirement regarding the time allowed for retest when the instruments involved are recalibrated?when the instruments involved are recalibrated?

The pump may be declared operable, provided that it is The pump may be declared operable, provided that it is clear the failed instrument is the overwhelming cause of clear the failed instrument is the overwhelming cause of the failed test. The failed instrument should be recalibrated, the failed test. The failed instrument should be recalibrated, and data promptly taken with the new equipment. There is and data promptly taken with the new equipment. There is no Code requirement for the timing of the retest, beyond no Code requirement for the timing of the retest, beyond satisfying the pump surveillance interval. However, the satisfying the pump surveillance interval. However, the licensee should redo the test promptly to verify that the licensee should redo the test promptly to verify that the cause was indeed the instrumentation. If the cause of cause was indeed the instrumentation. If the cause of anomalous data cannot clearly be attributed to the anomalous data cannot clearly be attributed to the malfunctioning gauge, then it should be attributed to pump malfunctioning gauge, then it should be attributed to pump failure. The licensee would then declare the pump failure. The licensee would then declare the pump inoperable and evaluate the condition of the pump in inoperable and evaluate the condition of the pump in accordance with the applicable technical specification. See accordance with the applicable technical specification. See NUREG-1482, Appendix A, Question Group 45 and 46. NUREG-1482, Appendix A, Question Group 45 and 46.


ISTB---PumpsISTB---Pumps P00-04, regarding Temporary Reference Values P00-04, regarding Temporary Reference Values

and Repair, Replacement and Maintenance of and Repair, Replacement and Maintenance of Pumps. In particular, can you use a Group A Pumps. In particular, can you use a Group A Pump Test in lieu of a Comprehensive Pump test, Pump Test in lieu of a Comprehensive Pump test, when a Group B pump has had “major when a Group B pump has had “major maintenance” which could affect the Hydraulic maintenance” which could affect the Hydraulic Profile of the pump, return the pump to Profile of the pump, return the pump to operability, in part based on the results of the operability, in part based on the results of the “mini-flow” test, and then perform a “mini-flow” test, and then perform a Comprehensive Pump test as soon as practicable?Comprehensive Pump test as soon as practicable?—this was —this was CLOSEDCLOSED without any further action without any further action being taken.being taken.


ISTB---PumpsISTB---Pumps Pump Design Flow Rate, being Pump Design Flow Rate, being

redefined as Comprehensive Pump redefined as Comprehensive Pump Test Flow Rate (P03-02). Still NOT Test Flow Rate (P03-02). Still NOT fully acceptable. Working.fully acceptable. Working.


ISTB---PumpsISTB---Pumps Comprehensive Pump Test Substitution, regarding Comprehensive Pump Test Substitution, regarding

the use of a Group A test in lieu of CPT, using the use of a Group A test in lieu of CPT, using ONLY installed instruments (provided that the ONLY installed instruments (provided that the instruments satisfy the IST requirements for 2% instruments satisfy the IST requirements for 2% tolerance and 3 times ref value or less for Range. tolerance and 3 times ref value or less for Range. The proposal is to permit the pressure The proposal is to permit the pressure instruments for CPT to continue to use the instruments for CPT to continue to use the instrument tolerance of +/- 2% in lieu of the instrument tolerance of +/- 2% in lieu of the requirement to use instrument tolerance of +/- requirement to use instrument tolerance of +/- 0.5% for pressure instruments. To change the 0.5% for pressure instruments. To change the 103% upper limit for the pump acceptance criteria 103% upper limit for the pump acceptance criteria from “required action” to “alert”, implement the from “required action” to “alert”, implement the more restrictive acceptance criteria for the lower more restrictive acceptance criteria for the lower limits (Alert and Required Action).—ROM 04-04.limits (Alert and Required Action).—ROM 04-04.

Appendix I SubgroupAppendix I Subgroup

Appendix I—Safety and Relief ValvesAppendix I—Safety and Relief Valves Adele Dibiasio has resigned from Appendix Adele Dibiasio has resigned from Appendix

I Subgroup. Shawn I Subgroup. Shawn Comstock to be Comstock to be Chairman of Appendix I. Chairman of Appendix I.

Frank Cherney resigned from Appendix I Frank Cherney resigned from Appendix I (NRC) to be replaced by Mr. Gary Hammer.(NRC) to be replaced by Mr. Gary Hammer.

Inquiry OMI-05-01, regarding testing 1 RV Inquiry OMI-05-01, regarding testing 1 RV in a group every 10 years. in a group every 10 years.

Response: No. Code requires 20% every Response: No. Code requires 20% every 48 months…..48 months…..

Appendix I SubgroupAppendix I Subgroup

Appendix I—Safety and Relief ValvesAppendix I—Safety and Relief Valves Code Cases OMN-2, 5, and 14 being Code Cases OMN-2, 5, and 14 being

incorporated into OM Code and will be incorporated into OM Code and will be allowed to “expire”.allowed to “expire”.• OMN-2—Thermal Relief ValvesOMN-2—Thermal Relief Valves• OMN-5—Testing of Liquid RVs without OMN-5—Testing of Liquid RVs without

insulationinsulation• OMN-14—BWR CRD Rupture Disk exclusion OMN-14—BWR CRD Rupture Disk exclusion

from Appendix I.from Appendix I.Extension of RV testing greater than 5/10 years Extension of RV testing greater than 5/10 years

for Class 1/Class 2 & 3 RVs. Maintenance for Class 1/Class 2 & 3 RVs. Maintenance requirements will be added to Appendix I which requirements will be added to Appendix I which will permit this.will permit this.

MOV/AOV SubgroupsMOV/AOV Subgroups OM-8---MOVsOM-8---MOVs Working on issuing OMN-1 and then incorporating Working on issuing OMN-1 and then incorporating

OMN-1 into ISTC as Appendix III.OMN-1 into ISTC as Appendix III. 7 sites currently implementing OMN-1, Revision 0.7 sites currently implementing OMN-1, Revision 0. 18 sites pending for implementation of OMN-1, 18 sites pending for implementation of OMN-1,

Revision 1.Revision 1. OM-19---AOVsOM-19---AOVs Code Case OMN-12 being submitted for Code Case OMN-12 being submitted for

Comments.—December 2005.Comments.—December 2005. Code Case to be incorporated into OM Code as Code Case to be incorporated into OM Code as

Appendix IV. 2007?Appendix IV. 2007?

ISTD SubgroupISTD Subgroup

ISTD---SnubbersISTD---Snubbers Preparation for approval of Code Preparation for approval of Code

Cases OMN-10, Revision 1.Cases OMN-10, Revision 1. Discussion on “promotion” of the use Discussion on “promotion” of the use

of the ISTD and Code Cases for of the ISTD and Code Cases for snubber testing. NRC exhibited snubber testing. NRC exhibited “favorable” position of stations using “favorable” position of stations using ISTD and Code Cases, in lieu of ISTD and Code Cases, in lieu of Technical Specifications.Technical Specifications.

ISTE SubgroupISTE Subgroup

ISTE---RI-ISTISTE---RI-IST Essentially ISTE will become a new Essentially ISTE will become a new

subsection of the Code. ISTE essentially subsection of the Code. ISTE essentially will provide a “pointer” to the Code Cases will provide a “pointer” to the Code Cases (Appendices) regarding RI-IST (Appendices) regarding RI-IST methodology, as the sections and Code methodology, as the sections and Code Cases are approved and endorsed by the Cases are approved and endorsed by the NRC. ISTE is being submitted for NRC. ISTE is being submitted for Comment. 2005?Comment. 2005?

Based upon comments received will Based upon comments received will probably be incorporated into 2007 edition probably be incorporated into 2007 edition of the OM Code.of the OM Code.

Check Valve SubgroupCheck Valve Subgroup OM-22---Check ValvesOM-22---Check Valves Discussions regarding disassembly and Discussions regarding disassembly and

Inspection of CVs during Power Ops. Inspection of CVs during Power Ops. Primarily now, NRC “encourages” the use Primarily now, NRC “encourages” the use of CV Condition Monitoring for the “online of CV Condition Monitoring for the “online D&I”.D&I”.

CV CMP guidance on using “historical CV CMP guidance on using “historical data”. Some confusion exists as to if and data”. Some confusion exists as to if and when you can use “existing” historical CV when you can use “existing” historical CV data to implement the Appendix II CV data to implement the Appendix II CV Condition Monitoring. This would be a Condition Monitoring. This would be a “clarification” of the Code “clarification” of the Code

Liaison ReportsLiaison Reports

Liaisons--NRCLiaisons--NRC Gene Imbro has been promoted to Deputy Gene Imbro has been promoted to Deputy

Chief of Engineering Component Integrity.Chief of Engineering Component Integrity. Dr. Sam Lee has been assigned as Dr. Sam Lee has been assigned as

Component Test Group Head (taking Component Test Group Head (taking Gene’s place).Gene’s place).

Discussion on converting NUREG 1482, Discussion on converting NUREG 1482, Revision 1 to a Regulatory Guide. More Revision 1 to a Regulatory Guide. More Regulatory “footprint”.Regulatory “footprint”.

Liaison ReportsLiaison Reports

Liaisons--NRCLiaisons--NRC Discussion on “removing” RIS-2004-012 requirements Discussion on “removing” RIS-2004-012 requirements

regarding use of later Code editions/addenda. Pending NRC regarding use of later Code editions/addenda. Pending NRC evaluation of “benefit” or “value added”..evaluation of “benefit” or “value added”..

SRP 3.9.6 (IST) to be revised in 2006.SRP 3.9.6 (IST) to be revised in 2006. 10 CFR 50.69 Approved.10 CFR 50.69 Approved. Look to approve OM Code 2004 addenda in September Look to approve OM Code 2004 addenda in September

2006?2006? RG 1.193 Rev. 1 issued in October 2005. RG 1.192 will be RG 1.193 Rev. 1 issued in October 2005. RG 1.192 will be

revised on an “as required” basis. When Code Cases have revised on an “as required” basis. When Code Cases have been revised or changes to “applicability” have been made been revised or changes to “applicability” have been made and approved by ASME…and Included in the revised ASME and approved by ASME…and Included in the revised ASME OM Codes.OM Codes.

Pump Performance Task GroupPump Performance Task Group

Pump Performance Looking at moving pump testing to 6 Looking at moving pump testing to 6

months using more “comprehensive months using more “comprehensive tests/exams (e.g. oil analyses, spectral tests/exams (e.g. oil analyses, spectral analysis for vibration).analysis for vibration).

Various discussions on pump performance Various discussions on pump performance testing which will eventually be testing which will eventually be incorporated into the Code (ISTB).incorporated into the Code (ISTB).

RISC-3 Task GroupRISC-3 Task Group

RISC 3—Low Safety Significant RISC 3—Low Safety Significant Discussions on testing/examinations Discussions on testing/examinations

required to be performed on Low Safety required to be performed on Low Safety Significant Components/Systems.Significant Components/Systems.

Trying to satisfy the requirements of 10 Trying to satisfy the requirements of 10 CFR 50.69 regarding test/examinations CFR 50.69 regarding test/examinations required for RISC-3 components (Low required for RISC-3 components (Low Safety Significant components).Safety Significant components).

Discussion on applicability of various Discussion on applicability of various tests/examinations. Expect first tests/examinations. Expect first deliverables in 2007 edition of OM Code.deliverables in 2007 edition of OM Code.

OM-24 SubgroupOM-24 Subgroup Inquiry into the correctness of the formula used for OM-24 Inquiry into the correctness of the formula used for OM-24

standard:standard:"Please validate the accuracy of the following equation "Please validate the accuracy of the following equation contained within ASME OMb‑S/G‑2005 Addenda to ASME contained within ASME OMb‑S/G‑2005 Addenda to ASME OM‑S/G‑2003, OM‑S/G‑2003, Part 24 "Reactor Coolant and Recirculation Pump Condition Part 24 "Reactor Coolant and Recirculation Pump Condition Monitoring",Monitoring",Section 9.2 "Determining 1x and 2x Vector Acceptance Section 9.2 "Determining 1x and 2x Vector Acceptance Regions", Regions", Subsection 9.2.4: Accept = 1/2 *(max.+ min.) +/‑ 1.5 / (max.‑ Subsection 9.2.4: Accept = 1/2 *(max.+ min.) +/‑ 1.5 / (max.‑ min.)min.)Accept = 1/2 *(max.+ min.) +/‑ 1.5*(max.‑ min.)Accept = 1/2 *(max.+ min.) +/‑ 1.5*(max.‑ min.)Note the difference after the +/‑ signs => ASME divides, the Note the difference after the +/‑ signs => ASME divides, the utility multiplies!utility multiplies!Response: The correct formula is: Response: The correct formula is: Accept = 1/2 *(max.+ min.) +/‑ 1.5 * (max.‑ min.)Accept = 1/2 *(max.+ min.) +/‑ 1.5 * (max.‑ min.)

MiscellaneousMiscellaneous

Discussion on incorporating Appendix Discussion on incorporating Appendix J requirements into OM Code, as a J requirements into OM Code, as a standard to the OM Code. standard to the OM Code. Discussions ensued involving ANSI Discussions ensued involving ANSI reaction.reaction.


Discussion regarding adoption of Discussion regarding adoption of ASME/OM Codes in the world (Japan, ASME/OM Codes in the world (Japan, Spain, China, Europe, UK).Spain, China, Europe, UK).

Next OM Code meeting in July 2006 Next OM Code meeting in July 2006 following Pump and Valve following Pump and Valve Symposium in Washington DC.Symposium in Washington DC.

Winter Code meeting to be in Winter Code meeting to be in Clearwater or St. Petersburg Fla. In Clearwater or St. Petersburg Fla. In December 2006.December 2006.


ASME NRC 9th Pump and Valve ASME NRC 9th Pump and Valve Symposium, to be held in Symposium, to be held in Washington DC, July 19 – 21, 2006. Washington DC, July 19 – 21, 2006. OM Code meeting to follow.OM Code meeting to follow.

Questions?Questions?

Documents

OM CODE SUMMARY December 2005