Document 46KKXZnDx1E8ZN8gD16V1Q0R

Wednesday, December 28, 1960 FEDERAL REGISTER 1382.1 perature of 66 F. should be maintained <g> The capacity of an exhaust system Personal Projective Equipment in all other workrooms unless prohibited by process requirements. 50-204,289 Loral exliutiM vciililmion. shall be calculated on the basis of all hoods, booths, and enclosures connected to the system being open, except where the system is so interlocked that only a g 50-204.298 Personal protective equip ment. Personal protective equipment or pro (a) Every local exhaust ventilation portion of it ean be operated at a given tective shields or barriers shall be pro system shall produce and maintain a time, in which case the capacity should vided and maintained in usable condi movement of air toward the opening, be calculated on the basis that all the tion whenever substances, radiation, or sufficient to prevent escape of contami hoods in the group requiring the great- mechanical irritants are encountered in nant to the workroom dtulng working est volume rate of exhaust are open. a manner capable of causing injury or hours, beyond the limits shown in sec <h) Suitable air inlets shall be pro-* impairment in function of any part of tion 50-204.276. vlded for replacement of exhausted air. the body through skin or mucous mem (b) Air flow tlnough branch and (1) Exhaust systems handling dusts brane absorption. main ducts shall be sufficient to trans and discharging to the outer air shall be Bituminous Coal and Lignite mines port the contaminant through the system provided with suitable air-cleaning de without settling. vices to remove ah' contaminants prior to 50--204.300 Federal Mine .Safety Code. (c) Piping shall be located so as to be accessible for Inspection and maintenance. (d> Air flow equipment including hoods, pipes, fans, motors, and collectors shall be effectively grounded. the discharge to the outer air, except under unusual circumstances. (J> The discharge from any exhaust system shall be such that no alrcontaminatlon therefrom will enter any window, door, or other opening of any work space in quantities sufficient to create a health The Federal Mine Safety Code for Bi tuminous Coal and Lignite Mines of the United States, Part I--Underground Mines, and Part n--Strip Mines, as pub lished by the Bureau of Mines, United States Department of Interior is hereby adopted by reference as the safety and <e> Two or more operations involving hazard to such space or create a nuisance health standard required for observance more than one substance shall not be to surrounding areas. In the bituminous coal and lignite min permitted to be connected to the same <k> Collected materials shall be re ing to which section 1(e) of the Walsh- exhaust system when a combination of the substances removed may constitute a Are hazard, an explosion hazard, or otherwise dangerous mixture. (f) Those processes or operations moved at Intervals frequent enough to insure that the exhaust system will meet the requirements of section 58-204.288 (a), at all times. Noise Healey Public Contracts Act has appllcar tlon. Signed at Washington, D.C., this 12th day of December 1960. using or generating flammable dusts, 50-204.293 Noise. gases, .fumes, vapors, mists, fibers or' Noise shall be reasonably reduced or James P. Mitchell, Secretary of Labor. other impurities shall be completely pro eliminated as a means of preventing fa [F.R. Hoc. CO-11689; Hied, Dec. 27, 19S0; tected from all sources of Ignition. tigue or accidents. 8:48 a.m.]