1、FEDERAL SPECIFICATION COMPRESSED AIR, BREATHING This specification is approved by the Assistant Administrator, Office of Federal Supply and Services, General Services Administration, for the use of all Federal Agencies. 1. SCOPE AND CLASSIFICATION 1.1 Scope. This specification establishes the requir
2、ements for breathing air that is supplied in a pressurized container or directly from a compressor The composition of the breathing air is similar to that normally found in the atmosphere. This specification does not apply to compressed air that is used in manufacturing plants for industrial purpose
3、s (see 6.1). 1.2 Classification. The breathing air shall be of the following sources and grades, as specified (see 6.2): Source I - Breathing air supplied in a pressurized container Grade A - High purity, very low water content Grade B - Standard purity, low water content Source II - Breathing air s
4、upplied directly from a compressor Grade A - High purity, very low water content Grade B - Standard purity, low water content 2. APPLICABLE DOCUMENTS 2.1 Government publications. The issues of the following documents, in effect on date of invitation for bids or solicitation for offers, form a part o
5、f this specification to the extent specified herein. Federal Standards FED-STD-123 - Marking for Shipment (Civil Agencies) FSC 6830 DISTRIBUTION STATEMENT A, Approved for public release; distribution is unlimited. AMSC NIA /THIS DOCUMENT CONTAINS I PAGES. Provided by IHSNot for ResaleNo reproduction
6、 or networking permitted without license from IHS-,-,-66-A-1034B (Activities outside the Federal Government may obtain copies of Federal specifications, standards, and commercial i tem descriptions, as out1 ined under General Information in the Index of Federal Specifications, Standards, and Commerc
7、ial Item Descriptions. The Index, which includes cumulative bimonthly supplements as issued, is for sale on a subscription basis by the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402.) (Single copies of this specification, and other Federal specifications and comm
8、ercial item descriptions required by activities outside the Federal Government for bidding purposes are available without charge from General Services Administration Business Service Centers in Boston, MA; New York, NY; Philadelphia, PA; Washington, DC; Atlanta, GA; Chicago, IL; Kansas City, MO; For
9、t Worth, TX; Denver, CO; San Francisco, CA; Los Angeles, CA; and Seattle, WAS (Federal Government activities may obtain copies of Federal standardization documents and the Index of Federal Specifications, Standards and Commercial Item Descriptions from established distribution points in their agenci
10、es.) Military Specifications MIL-L-25567 - Leak Detection Compound, Oxygen Systems MIL-T-277:a - Tape, Antisieze, Tetrafluoroethylene, With Dispenser Military Standards MIL-STD-101 - Color Code for Pipelines and for Compressed-Gas MIL-STO-105 - Sampling Procedures and Tables for Inspection by MIL-ST
11、D-129 - Marking for Shipment and Storage MIl-STD-1411 - Inspection and Maintenance of Compressed Gas Cylinders Cy1 i nders Attributes (Copies of military specifications and standards required by contractors in connection with specific procurement functions should be obtained from the procuring activ
12、ity or as directed by the contracting officer.) Laws and Regulations Department of Transportation 49 CFR - Transportation (The Code of Federal Regulations (CFR) are for sale on a subscription basis by the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402. obtained fr
13、om the Federal Agency responsible for i ssuatice thereof. 1 Wh-en indicated reprints of certain regulations may be 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless a specific issue is 2 t. Provided by IHSNot for ResaleNo reprodu
14、ction or networking permitted without license from IHS-,-,-BB-A-LO3qB 68 m 777777Li 0008502 3 m BB-A-1 O348 identified, the issue in effect on date of invitation for bids or request for proposal shall apply. American Chemical Society Publications Reagent Chemicals, ACS Specifications (Application fo
15、r copies should be addressed to the American Chemical American Society for Testing and Material (ASTM) ASTM E 29 Recommended Practices for Indicating Which Places of Society, 1155 Sixteenth Street, N.W., Washington, DC 20006.) Figures are to be Considered Significant in Specified Limiting Values. Te
16、sting and Materials, 1916 Race Street, Philadelphia, PA 19103) (Applications for copies should be addressed to the American Society for 3. REQUIREMENTS 3.1 Preproduction. When specified (see 6.21, the breathing air furnished under this specification shall be a product which has passed the preproduct
17、ion inspection (see 4.4). 3.2 Composition. 3.2.1 Air mixture. The composition of the air mixture shall conform to the requirements specified in table I and 3.2.1.1. TABLE I. Air mixture composition. Component Oxygen, percent by volume Carbon dioxide 1/ Carbon monoxide 1/ Oil (mist and vapor) and Sou
18、rce I (pressurized container air) Grade A 20 to 22 500 10 O. 005 Grade B 19 to 23 1 O00 10 O. 005 3 Source II (compressor air) Grade A 20 to 22 500 10 O. 005 Grade B 19 to 23 1 O00 10 O. 005 Test met hod 4.7.1 4.7.2 4.7.3 4.7.4 Provided by IHSNot for ResaleNo reproduction or networking permitted wit
19、hout license from IHS-,-,-BB-A-10346 Component Maximum ppm by volume TABLE I. Air mixture composition. (continued). Test method 1 Gaseous hydrocarbons (as methane) Halogenated solvents (trichloroethylene and freon TF) parti cul ate matter 21 Separated water 1 None Total water 2/ 0.02 25 0.2 :e I !d
20、container r) Grade B None - 31 Source II (comjwessor air) Grade A I Grade B None 0.02 None - 31 Test met hod 4.7.5 4.7.6 - 1/ Maximum parts per million (ppm) by volume. - 21 Milligrams per liter, maximum - 3/ Minimum total water content for Grade B may be set in purchase order. The composition of th
21、e balance of the air mixture, when tested as specified in 4.7.10, shall consist of nitrogen and, if present, the usual quantities (or less) of the other gases usually found in the atmosphere. The trace constituents for all sources and grades shall not exceed the values specified in table II. 3.2.1.1
22、 Balance. TABLE II. Air mixture trace constituents. 4.7.10 4.7.10 3.3 m. When tested as specified in 4.7.7, the breathing air shall be free from a pronounced or objectionable odor. 3.4 Preparation of Cylinders (Source the container pressure shall be within 5 25 pounds per square inch gauge (psig) of
23、 the specified value. 3.5 Type of compressor chambers (source II). Compressor chambers for source II breathing air may be either water-lubricated or unlubricated. 4. QUALITY ASSURANCE PROVISIONS 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BB-A-
24、LO34B b 9 7777774 0008504 7 W BB-A-1034B 4.1 Responsibility for inspection. Unless otherwise specified in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as Otherwise specified in the contract, the contractor may use his own
25、or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure that su
26、pplies and services conform to prescribed requirements. 4.2 Classification of inspection. The examination and testing of the breathing air shall be classified as follows: (a) Preproduction inspection (see 4.4) (b) Quality conformance inspection (see 4.5) 4.3 Inspection conditions. 4.3.1 Purging of c
27、onnecting lines. Except for the sufficient breathing air shall be discharged through a completely purge and displace air or other gas in the the test equipment. filling pressure test, 1 connecting lines to ines before coupling to 4.3.2 Temperature and pressure. Unless otherwise specified, tests shal
28、l be conducted at local ambient temperature and barometric pressure. Test instruments shall be calibrated or adjusted according to their required usage in conducting individual tests. Temperatures and pressure shall be recorded at the time of inspection and, when required, the test results shall be
29、corrected to standard temperature and pressure (STP: conditions. STP conditions are 29.92 inches of mercury (760 mm) and 21.1“C (70F). 4.4 Preproduction inspection. When specified (3.1 and 6,2), the preproduction inspection shall consist of a review of the test report (see 4.4.2) for approval, and b
30、y examination and testing to determine that the preproduction inspection sample (see 4.4.1) complies with all the requirements of 3.2 and 3.3. 4.4.1 Preproduction inspection samples. 4.4.1.1 Source I. Unless otherwise specified, as soon as practicable after the award of the contract or purchase orde
31、r, the contractor shall submit one contalner of each grade of source I breathing air Specified in the contract or purchase order. inches, charged to a pressure of 400 psig and contain a minimum quantity of 25 cubic feet. The composition of the compressed breathing air shall be representative of the
32、item or items to be delivered under the contract. The samples shall be furnished to the Government as specified in the contract or order (see 6.2). Each container shall have a minimum volume of 276 cubic 4.4.1.2 Source II. Preproduction samples of source II breathing air of each grade specified in t
33、he contract or order shall be submitted and furnished to the Government as specified in the contract or order. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BB-A-1034B 4.4.1.3 Identification markings. The preproduction sample shall be plainly ide
34、ntified by a securely attached durable tag or label marked with the following information: - Sample for preproduction inspection AIR, COMPRESSED FOR BREATHING PURPOSES Source and grade Name of manufacturer Product code number Batch number Date of filling Submitted by (name) (date) for preproduction
35、inspection in accordance with 66-A-10346 4.4.2 Test reports. Two copies of the manufacturers test report, containing complete test data, referring specifically to the applicable paragraphs, showing that the material submitted for preproduction inspection conforms to the requirements of this specific
36、ation (see 4.41, shall be submitted with the preproduction sample. 4.5 Qual i ty conformance inspection. 4.5.1 Sampling for tests. 4.5.1.1 Source I. A quantity of filled pressurized containers shall be selected at random from each lot in accordance with table III. A lot shall consist of Pressurized
37、containers that have been charged on the same manifold at the same time. 4.5,.1.2 Source JI. Unless an alternate procedure is specified by the procuring activity (see 6.21, samples of the breathing air shall be taken from each compressor at the intervals specified in table III. 4.5.1.3 Preparation f
38、or delivery (source I only). Samples of filled pressurized containers shall be selected at random from each lot in accordance with MIL-STD-105 and table IV, and must meet all requirements of section 5. 4.5.1.4 Retention samples. When specified by the procuring activity (see 6.21, a sample of the bre
39、athing air being manufactured to fulfill a contract shall be taken at a maximum interval of once every 45 days for the duration of the contract. contract or order (see 6.2). The samples shall be taken and forwarded as specified in the 4.5.1.5 Inspection procedure. 4.5.1.5.1 Source I. Each of the sou
40、rce I filled pressurized containers selected in accordance with 4.5.1.1 shall be tested to determine conformance to the applicable requirements specified in table III. The test sequence specified in footnote 11 of table III shall be followed. The manufacturer shall certify in writing that the breath
41、ing air supplied conforms to the requirements of Table I and 3.2.1. shall be accepted or rejected and reprocessed as specified in table III. The filled pressurized container or the lot n 6 F Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BB-A-1034B
42、68 m 777777q 0008506 O 66 -A-1 034B Iw I- UTI ID IA n ? i D -I D W r F. i1 d i. O O O O O O U fl ID U ID 1 m 1 1 ID 1 ID ID a * a * * n n n i . i P U W f U H*V) CID UID f U Hm f f ID *ID SW Ort -r U ID *wu C ID 5 acs D D D o z ID VI P ? ID d. n C ID 5 -ht,-h O00 *e 333 O00 e?* IDIDID * v) V) ID v) I
43、D ID ID ID n, v) ID ID f P p ? N W f P p p d A n Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-66-A-10346 Inspect i on AQL - percent level defect i ve TABLE IV. Qual i ty conformance sampling for preparation for delivery. Samp 1 e unit I In spec t
44、i on I Fi 1 led pressurized containers (see Table V) Packing (see Table VI) I I I s-3 2.5 A filled pressurized container 1 / 2.5 I A pallet or shipping s-3 I container 2/ - 11 The lot size shall be the number of filled pressurized containers of one size and type contaifling one grade of breathing ai
45、r produced by one manufacturer being inspected at one time. produced by one manufacturer being inspected at one time. 2/ The lot site shall be the number of filled pallets or shipping containers 4.5.1.5.2 Source II. Each sample of source II (compressor) air (see 4.5.1.2) shall be tested to determine
46、 conformance to the applicable requirements specified in table III. that the breathing air supplied conforms to the requirements of Table I and 3.2.1. shall be taken as specified in footnote 3/ of table III. The manufacturer shall certify in writing Whenever a sample fails to conform to a single req
47、uirement, action 4.5.1.5.3 Preparation for delivery (source I only). The source I preparation for delivery samples selected in accordance with 4.5.1.3 and table IV shall be examined for the defects listed in tables V and VI to determine compliance with all the applicable requirements of section 5. I
48、f the number of defective samples exceeds the acceptable quality level specified in table IV, the lot represented by the samples shall be rejected. Table V. Exami ne Cons truc t i on Marking Filled pressurized containers. Defect Not materi al required Not size, type, or class specified Closure not a
49、s specified Evidence of 1 eakage Warning labels or marking missing, omitted, Not in accordance with contract requirements illegible, incorrect, incomplete a Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BB-A-LO3YB 68 9779974 0008508 4 U 66-A-10346 Table VI Packing. Exami ne Defect I Intermediate Packaging Packing Count Markings Not level required by contract o
