Eye Protection for Torch Brazing
(a) Helmets or hand shields shall be used during all arc welding or arc cutting operations, excluding submerged arc welding.
Goggles should also be worn during arc welding or cutting operations to provide protection from injurious rays from adjacent work, and from flying objects. The goggles may have either clear or colored glass, depending upon the amount of exposure to adjacent welding operations. Helpers or attendants shall be provided with proper eye protection.
(b) Goggles or other suitable eye protection shall be used during all gas welding or oxygen cutting operations. Spectacles without side shields, with suitable filter lenses are permitted for use during gas welding operations on light work, for torch brazing or for inspection.
(c) All operators and attendants of resistance welding or resistance brazing equipment shall use transparent face shields or goggles, depending on the particular job, to protect their faces or eyes, as required.
(d) Eye protection in the form of suitable goggles shall be provided where needed for brazing operations not covered in (1)(a), (b) and (c) of this section.
(2) Specifications for protectors.
(a) Helmets and hand shields shall be made of a material which is an insulator for heat and electricity. Helmets, shields and goggles shall be not readily flammable and shall be capable of understanding sterilization.
(b) Helmets and hand shields shall be arranged to protect the face, neck and ears from direct radiant energy from the arc.
(c) Helmets shall be provided with filter plates and cover plates designed for easy removal.
(d) All parts shall be constructed of a material which will not readily corrode or discolor the skin.
(e) Goggles shall be ventilated to prevent fogging of the lenses as much as practicable.
(f) Cover lenses or plates should be provided to protect each helmet, hand shield or goggle filter lens or plate.
(g) 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.
(h) Lenses shall bear some permanent distinctive marking by which the source and shade may be readily identified.
(i) The following is a guide for the selection of the proper shade numbers. These recommendations may be varied to suit the individual's needs.
Filter Lenses for Protection against Radiant Energy
(j) All filter lenses and plates shall meet the test for transmission of radiant energy prescribed in ANSI Z87.1-1968 —American National Standard Practice for Occupational and Educational Eye and Face Protection.
(3) Protection from arc welding rays. Where the work permits, the welder should be enclosed in an individual booth painted with a finish of low-reflectivity such as zinc oxide (an important factor for absorbing ultraviolet radiations) and lamp black; or shall be enclosed with noncombustible screens similarly painted. Booths and screens shall permit circulation of air at floor level. Workers or other persons adjacent to the welding areas shall be protected from the rays by noncombustible or flameproof screens or shields or shall be required to wear appropriate goggles.
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