Evaluation of Commercially Available Open Circuit Scuba Regulators

Evaluation of Commercially Available Open Circuit Scuba Regulators PDF

Author: James R. Middleton

Publisher:

Published: 1980

Total Pages: 304

ISBN-13:

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In June 1979 the Navy Experimental Diving Unit performed unmanned tests on 36 open circuit scuba regulators currently manufactured in the United States. Breathing resistance, respiratory work and first stage performance were evaluated. Results of these tests produced a new NEDU scuba regulator performance requirement to replace the current requirement taken from Mil-R-24169A. Of the 36 regulators tested, 7 regulators met the upgraded performance standard, 22 regulators and one full face mask met Mil-R-24169A, and 6 regulators did not meet Mil-R-24169A. (Author).

Evaluation of SCUBA PRO MARK I and MARK V Open Circuit SCUBA Regulators

Evaluation of SCUBA PRO MARK I and MARK V Open Circuit SCUBA Regulators PDF

Author: Stephen D. Reimers

Publisher:

Published: 1970

Total Pages: 26

ISBN-13:

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The military specifications for open circuit SCUBA regulators provide a mechanism by which commercial vendors may submit their regulators to the Navy Experimental Diving Unit for testing for possible approval for U.S. Navy use. Accordingly, two SCUBA PRO single hose regulators, Models MARK I AND MARK V, were tested in December 1969. The inhalation resistance of the regulators was found under certain conditions to exceed the limits specified for single hose regulators in Mil-R-24169A. The regulators were, therefore, disapproved for U.S. Navy use. (Author).

Commercially Available US Divers Regulators

Commercially Available US Divers Regulators PDF

Author:

Publisher:

Published: 1994

Total Pages: 41

ISBN-13:

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Evaluations were conducted to determine which commercially available open-circuit SCUBA regulators were capable of meeting performance goal standards for Navy use. Bench testing of all candidate regulators was conducted to establish flow patterns and air delivery capacity. Unmanned testing using a breathing simulator at ventilation rates of 22.5, 40, 62.5, 75, and 90 L/min at test depths of 0 to 60 msw (O to 198 fsw), in 10 msw (33 fsw) increments was conducted to determine work of breathing (WOB) values. Each candidate regulator mode(was subjected to five runs each. The mean WOB value was then compared to the Performance Goal Standard of 1.37 Joules per Liter (J/L) at 60 msw (198 fsw) by using a one sample T-test with a significance established at P

Evaluation of SCUBA PRO MARK I, MARK V and MARK VII Open Circuit SCUBA Regulators

Evaluation of SCUBA PRO MARK I, MARK V and MARK VII Open Circuit SCUBA Regulators PDF

Author: Richard Y. Iha

Publisher:

Published: 1971

Total Pages: 26

ISBN-13:

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The military specifications for open circuit SCUBA regulators provide a mechanism by which commercial vendors may submit their regulators to the Navy Experimental Diving Unit for testing for possible approval for U.S. Navy use. Accordingly, three SCUBA PRO single hose regulators, Models MARK I (Mil-101), MARK V (Mil-105) and MARK VII (Mil-107), were tested at NEDU during May 1971. Models MARK I (Mil-101) and MARK V (Mil-105) were found to meet the requirements of the military specifications for single hose regulators, Mil-R-24169A, and were approved for U.S. Navy use. Model MARK VII (Mil-107) was not granted pending examination for conformance to Navy material certification requirements. (Author).

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