Welding and flame cutting

• Pages: 243-249

28 Welding and flame cutting

28.1. General provisions

28.1.1. Welders should wear fire-resistant protective clothing

and equipment such as fire-resistant gauntlets and aprons, helmets

and goggles with suitable ifiter lenses.

28.1.2. Welders should wear clothing that is free from grease,

oil and other flammable material.

28.1.3. Workers removing excess metal, slag, etc. should:

wear gloves and goggles or a face screen;

chip away from the body; and

ensure that other persons are not struck by chips.

28.1.4. Adequate precautions should be taken to protect per-

sons working or passing near welding operations from dangerous

sparks and radiation.

28.1.5. When welding or cutting is being done on materials

containing toxic or harmful substances or liable to produce toxic

or harmful fumes, adequate precautions should be taken to protect

workers from the fumes either:

by exhaust ventilation; or

by respiratory protective equipment.

28.1.6. At places where welding machines are operated by

internal combustion engines, adequate ventilation should be

provided.

28.1.7. A suitable fire extinguisher should be kept ready for

immediate use at places where welding is done.

28.1.8. The oxygen pressure for welding should always be

high enough to prevent acetylene flowing back into the oxygen

cylinder.

28.1.9. Acetylene should not be used for welding at a pressure

exceeding 1 atm. gauge.

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