Download Safety Manual - Pyro Combustion

Welding, Cutting & Brazing (Hotwork)

All parts shall be constructed of a material that will not readily corrode or discolor the
skin;

Goggles shall be ventilated to prevent fogging of the lenses as much as practicable;

All glass for lenses shall be tempered, substantially free from striae, air bubbles, waves
and other flaws. Except when a lens is ground to provide proper optical correction for
defective vision, the front and rear surfaces of lenses and windows shall be smooth and
parallel;

Lenses shall bear some permanent distinctive marking by which to identify the source
and shade;

Filter lenses must meet the test for transmission of radiant energy prescribed by any of
the following consensus standards:
o ANSI Z87.1-2003, "American National Standard Practice for Occupational and
Educational Eye and Face Protection;"
o
o
ANSI Z87.1-1989 (R-1998), "American National Standard Practice for Occupational
and Educational Eye and Face Protection;" or
ANSI Z87.1-1989, "American National Standard Practice for Occupational and
Educational Eye and Face Protection."

Where work permits, enclose the welder in an individual booth painted with a finish of
low reflectivity such as zinc oxide and lamp black, or enclose with noncombustible
screens similarly painted. Booths and screens shall permit circulation of air at floor level;
and

Protect workers or other persons adjacent to the welding areas from the rays by
noncombustible or flameproof screens or shields or shall be required to wear appropriate
goggles.
Protective Clothing
Protect employees exposed to the hazards created by welding, cutting, or brazing operations
with personal protective equipment as required to ensure safety and meet regulatory
requirements. Appropriate protective clothing required for any welding operation will vary with
the size, nature and location of the work.
21.4.1.3 Health Protection and Ventilation
The factors that govern the amount of contamination to which welders may be exposed are the
dimensions of the workspace, the number of welders working, and the evolution of hazardous
fumes, gases or dust.
When the welding area is screened on all sides, the screens need to be arranged to allow
sufficient ventilation — mounted about 2 feet from the floor, unless the work being done is near
enough to the ground to require them to be lower to prevent harm to nearby workers.
Ventilating systems must ensure toxic fumes, gases, or dust remain under permissible levels for
all workers.
6/18/2013
21-7
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