MIL-PRF-27210J
ASTM F310
Standard Practice for Sampling Cryogenic Aerospace Fluids
(DoD
Adopted)
(Copies of these documents are available online at https://www.astm.org or the ASTM International, 100
Barr Harbor Drive, West Conshohocken PA 19428-2959)
COMPRESSED GAS ASSOCIATION (CGA)
CGA G-4.3
Commodity Specification for Oxygen
CGA P-15
Filling of Industrial and Medical Nonflammable Compressed Gas
Cylinders
(Copies of these documents are available online at https://www.cganet.com or the Compressed Gas
Association, Inc., 14501 George Carter Way, Suite 103, Chantilly VA 20151, USA)
2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a
conflict between the text of this document and the references cited herein, the text of this document takes
precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a
specific exemption has been obtained.
3. REQUIREMENTS
3.1 First article. When specified, a sample shall be subjected to first article inspection in
accordance with 4.2 (see 6.2).
3.2 Purity. The oxygen (Type I and II) shall contain not less than 99.5 percent oxygen by volume
when tested in accordance with 4.5. The remainder, except for moisture and minor constituents specified
in Table I, shall be argon and nitrogen.
3.3 Impurities. The oxygen shall be free from all contaminants of known toxicity to the maximum
practicable extent. Limitations on specific impurities shall be as follows:
3.3.1 Odor. The oxygen (Type I and II) shall contain no odor when tested as specified in 4.5.
3.3.2 Minor constituents. Minor constituents of Types I and II shall not exceed the quantity specified in
Table I.
3.3.3 Moisture. Moisture in Types I and II shall not exceed 7 ppm of water vapor or a maximum
dew point of -63.3°C (-82°F) when tested as specified in 4.5.
3.4 Materials. There is no requirement included herein which should be interpreted to exclude
the use of reclaimed materials in the manufacture of this commodity.
3.5 Filter. When required, Type II oxygen shall be passed through a filter as specified in 4.6.
3.6 Limiting values. The following applies to all specified limits in this specification: For purposes
of determining conformance with these requirements, an observed value or a calculated value shall be
rounded off in the last right-hand digit used in expressing the specification limit, using the Rounding
Method of ASTM E29.
3.7 Gas Cylinders (Type I only).
3.7.1 Pressure. The container filling pressure (see 6.2) shall not differ from that required by the
contract by more than 1.0% at 21°C (70°F) when tested as specified in 4.4.1. In no case shall the filling
pressure exceed the rated service pressure of the container. Pressure-Temperature Filling Charts in CGA
P-15 may be used.
3.7.2 Leakage. Cylinders shall not leak when tested according to 4.4.2.
3.7.3 Inspection and maintenance. Compressed gas cylinders shall be inspected, maintained
and charged according to 4.4.3.
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