 | United States. Bureau of Mines - Mines and mineral resources - 1911 - 1310 pages
...191i3, pp. 6-11. attachment or mouth-breathing device, exclusive of attached tubes or connections. Preferably, the apparatus shall not weigh more than...repaired by persons skilled in such work, and all parts that require sterilizing shall be readily accessible for this purpose. 3. All parts of the apparatus... | |
 | United States. Bureau of Mines - Mines and mineral resources - 1923 - 48 pages
...and durability of construction is desirable. 19. The mechanical construction of the apparatus should be such that every part can be tested, inspected,...repaired by persons skilled in such work, and all parts that require sterilizing should be readily accessible. 20. All parts of the apparatus subject to or... | |
 | Mineral industries - 1928 - 1018 pages
...exclusive of attached tubes or connections. Preferably, the apparatus shall not weigh more than 30 pounds complete with headpiece and fully charged,...repaired by persons skilled in such work, and all parts that require sterilizing .shall be readily accessible for this purpose. 3. All parts of the apparatus... | |
 | Administrative law - 1939 - 826 pages
...more than 40 pounds, complete with headpiece and fully charged, wul be accepted for final test. (b) The mechanical construction of the apparatus shall...sterilizing shall be readily accessible for this purpose. (c) All parts of the apparatus subject to or liable to be subjected to pressures in excess of 5 pounds... | |
 | United States. Bureau of Mines - Mines and mineral resources - 1913 - 1622 pages
...to prevent material damage or wear during the period of tests to which it is subjected. CONSTRUCTION 2. The mechanical construction of the apparatus shall...repaired by persons skilled in such work, and all parts that require sterilizing shall be readily accessible for this purpose. 1. The apparatus shall be designed... | |
 | United States. Bureau of Mines, George Wallace Grove - Breathing apparatus - 1941 - 278 pages
...fully charged, will be accepted for final test. 9. The mechanical construction of the apparatus must be such that every part can be tested, inspected,...repaired by persons skilled in such work, and all parts that require sterilizing must be readily accessible for this purpose. 10. All parts of the apparatus... | |
 | Administrative law - 1967 - 414 pages
...meet the needs of the wearer for not less than the number of minutes for which it was designed. (b) The mechanical construction of the apparatus shall...can be tested, inspected, and repaired by persons that are skilled in such work, and all parts that require sterilizing shall be readily accessible for... | |
 | Administrative law - 1959 - 664 pages
...meet the needs of the wearer for not less than the number of minutes for which it was designed. (b) The mechanical construction of the apparatus shall...can be tested, inspected, and repaired by persons that are skilled in such work, and all parts that require sterilizing shall be readily accessible for... | |
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... skilled in such work, and all parts that require sterilizing shall be readily accessible for this purpose. (c) All parts of the apparatus subject to or liable to be subjected to pressures in excess of 5 pounds per square inch shall be... 
