Abstract |
The publication lists devices approved jointly by the Secretary of the Interior and the Secretary of Health, Education, and Welfare, as of May 24, 1972, under provisions of 11.2, Part 11, Subchapter B of Chapter 1, Title 30 Code of Federal Regulations (37 F.R. 6244, March 25, 1972), for use in mines as respiratory protection in oxygen-deficient atmospheres, and in gases, vapors, dusts, fumes, and mists. Included are self-contained breathing apparatus, gas masks, and supplied-air, dust, fume, mist, and chemical-cartridge respirators. Names and addresses of manufacturers appear in the Appendix. |