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The Simple Science of Cleaning

•Water is the simplest cleaning agent but it needs help Imagine trying to wash a greasy plate with just cold water.

• Detergents help water to break down soil and remove dirt and stains.

• They also hold dirt particles in suspension.

• This prevents dirt and soil being re-deposited onto clean surfaces.

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What is a pH Scale?

The pH scale ranges from 1 -14 and will measure the degree of alkalinity or acidity in a cleaning product.

•ACID cleaners usually come in the range from 0 - 5•ALKALINE cleaners are usually between 9 -13water, which is NEUTRAL is 7 on the pH scale but many cleaning products are also described as neutral detergents and are used in regular cleaning

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

ACID NEUTRAL ALKALINE

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What a cleaning Chemical does

Neutral detergents are used in daily routine cleaning.Acid detergents are used to descale surfaces where metal salts

and limescale have built up.Acid cleaners must be used carefully.Alkaline detergents are used as hard surface cleaners,

floor strippers and de-greasing agents.Strong alkaline cleaners may damage wood, marble, chrome and

aluminum surfaces if used incorrectly.AlwaysAlways

follow the dilutionfollow the dilutionrates so as to rates so as to

achieve effectivenessachieve effectivenessin cleaning!in cleaning!

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Treat chemicals with care.Follow instructions for use.Keep in original containers or DiverseyLever dispensers.NEVER mix chemicals. together as harmful fumescan be given off.NEVER drink chemicals.Watch out for hazard warning labels.Wear appropriate protective clothing. if issued, such as rubber glovesUse only authorized chemicals.Store chemicals safely.Observe safe working practices.

Remember: Follow allcontrol measures laid down by your employer.

DON’TDON’T

Using Cleaning Chemicals Safely

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Using Cleaning Chemicals Safely Cnt.TTreat chemicals with care.Use correct dilution rates.Change cleaning solutions frequently and never top up.Heavy items and chemical containers should not be stored above eye level. Label cleaning chemical bottles correctly with details of contentsNever smoke in a store area containing cleaning chemicals.

The Cleaning Manager should always retain a set of Material Safety Data Sheets for each product for reference.

FFOO

CO

CO

50

40

30

20

10

0

10

20

30

40

50

120

100

80

0

20

20

40

60

60

40

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Elements Of Cleaning The four basic elements that affect cleaning performance are:

Time Chemicals Temperature Mechanical Action

The proper balance of mechanical action, time, chemicals andtemperature brings about maximum cleaning economy andefficiency

To maintain work quality if one element is changed, ithas to be compensated by another

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Control & Usage Of Chemicals

REMEMBER:

Only use the recommended amount of chemical as directed by the chemical supplier.

Do not mix chemicals!

Only use chemicals in their proper containers which are clearly marked with:

Product name Directions for use Safety instructions

BOOM!BOOM!

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Emergency Procedures

In case of emergency:

Know and understand your own company procedures

Refer to instructions on drum MSDS provided by chemical suppliers

Seek medical attention and first aid

If product is ingested, look out for drum label for details of emergency telephone numbers for advice

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What Are The Hazards?

They are:

Irritation of the skin

Damage to the eyes

Burning of the skin

Damage to the lungs

Poisoning

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Safety Equipment

When handling chemicals, ensure the following safetyequipment are worn:

Safety goggles

Respirator Mask

Rubber gloves

Protective shoes

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Know The Hazard Symbols

Toxic/Very ToxicYou will not come into physical contact with anyproducts in this category.

Corrosive Machine dishwash detergents Oven sprayer/cleaners Descalers Laundry detergents

Harmful/Irritant Bleaches Sanitisers Heavy duty degreasers Destain powders Laundry destainers