 | United States. Bureau of Mines - Mines and mineral resources - 1911 - 1310 pages
...over a period of two hours. All work tests are performed in irrespirable atmospheres. A test is also made to determine the maximum length of time that...apparatus will supply the needs of the wearer when quiescent. Throughout this test the wearer remains as far as possible in a sitting posture and performs... | |
 | Administrative law - 1939 - 826 pages
...temperature readings at end of test. (h) Tests 13 and 14. These tests will be repetitions of test 12. (i) Test 15. This test will be made to determine the maximum...quiescent state. The wearer will remain as far as possible Page 29 in a sitting posture throughout the test and perform no work. He will be allowed to manipulate... | |
 | United States. Bureau of Mines - Mines and mineral resources - 1913 - 1622 pages
...wearer with oxygen or air. All work tests are performed in irrespirable atmospheres. A test is made also to determine the maximum length of time that the apparatus will supply the needs of the wearer when quiescent. Throughout this test the wearer remains as far as possible in a sitting posture and performs... | |
 | United States. Bureau of Mines, George Wallace Grove - Breathing apparatus - 1941 - 278 pages
...cover various stages of exertion, from being at rest to prolonged strenuous exercise. A test is also made to determine the maximum length of time that...apparatus will supply the needs of the wearer when quiescent (sitting down) Each test, whether a work or duration test, must be continuous, without removal... | |
 | Administrative law - 1967 - 414 pages
...oxygen or compressed air is exhausted; record the time when the supply Is exhausted. (m) Test 15 is made to determine the maximum length of time that...possible in a sitting posture throughout the test ana perform no work. He will be allowed to manipulate the devices controlling the compressed-oxygen... | |
 | Administrative law - 1959 - 664 pages
...oxygen or compressed air is exhausted; record the time when the supply is exhausted. (m) Test 15 is made to determine the maximum length of time that...allowed to manipulate the devices controlling the compressed-oxygen or compressedair supply to conserve such compressed oxygen or compressed-air supply... | |
 | Administrative law - 1966 - 392 pages
...oxygen or compressed air is exhausted; record the time when the supply is exhausted. (m) Test 15 is made to determine the maximum length of time that...allowed to manipulate the devices controlling the compressed-oxygen or compressedair supply to conserve such compressedoxygen or compressed-air supply... | |
 | Administrative law - 1968 - 408 pages
...oxygen or compressed air is exhausted; record the time when the supply Is exhausted. (m) Test 15 is made to determine the maximum length of time that...allowed to manipulate the devices controlling the compressed-oxygen or compressedair supply to conserve such compressedoxygen or compressed-air supply... | |
 | Administrative law - 1949 - 566 pages
...temperature readings at end of test. (h) Tests 13 and 14 will be repetitions of test 12. (i) Test 15. (1) This test will be made to determine the maximum length...allowed to manipulate the devices controlling the compressed-oxygen or compressed-air supply to conserve such compressed-oxygen or compressed-air supply... | |
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Test 15 is made to determine the maximum length of time that the apparatus will supply the needs of the wearer when in a quiescent state. The wearer will remain as far as possible in a sitting posture throughout the test and perform no work. He will be... 
