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Subchapter 18. Ship Building, Ship Repairing and Ship Breaking Safety Orders
Article 4. Control of Hazardous Work
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§8357. Inert-Gas Shielded Metal-Arc Welding.

Employees shall not be permitted or required to operate such equipment until they have been thoroughly instructed in its use, and have knowledge of the hazards involved. Before starting operations, the following shall be complied with:

(a) Before starting to work in an area used for purposes other than welding, permission to weld shall be obtained from the supervisor directly responsible.

(b) General ventilation for such operations shall be installed.

(c) Local exhaust ventilation or supplied-air respirators shall be provided in all cases when doing inert-gas shielded metal-arc welding of stainless steel, lead, zinc, beryllium, copper, or cadmium to protect against dangerous concentrations of toxic gases and fumes.

(d) The use of chlorinated solvents shall be kept away from the exposed arc; surfaces prepared with chlorinated solvents shall be steamed and thoroughly dried or otherwise cleaned of chlorinated solvents before welding is permitted on such surface.

(e) Where inert-gas shielded metal-arc welding is being used, employees and others in the area not protected by screening shall be provided with and shall wear shaded goggles, with side shields.

(f) Protective clothing, including gloves, shall be worn by employees within the areas exposed to radiation so that the skin is covered completely to prevent burns and other damage by ultraviolet rays. Shirts worn shall be dark in color to reduce reflection to the face from underneath the helmet. Welding helmets and hand-held shields shall be free from leaks and openings and free of highly reflective surfaces.

NOTE: Cotton clothing should be covered since it disintegrates rapidly when exposed to high intensities of ultraviolet rays.

NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. Amendment filed 1-22-88; operative 2-21-88 (Register 88, No. 6).

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