ARMY MIL-W-12062 A-1985 WAX PETROLEUM (METRIC)《石油蜡(METRIC)》.pdf

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1、20 June 1985 SUPERSEDING MIL-W-12062 ( CmiC ) 14 June 1952 MILITARY SPECIFICATION WAX , PETROLEUM ( METRIC ) This specification is approved for use by US Army Armament, Munitions and Chemical Command, Department of the Army, and is available for use by all Depart- ments and Agencies of the Departmen

2、t of Defense. 1. SCOPE 1.1 Scope. This specification covers one type of petroleum wax material for waterproofing munitions. 2. APPLICABLE WCWNTS t. 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. Unless otherwise specified, the following specifications, standars, and handbo

3、oks of the issue listed in that issue of the Department of Defen3e Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein. I : Beneficial comments (recommendations, additions, deletions) and any perti- : : nent da

4、ta which may be of use in improving this document should be addressed: : to: Commander, US Army Armament, Munitions and Chemical Command, ATTN: : AMSMC-TDC-S (A) , Aberdeen Proving Ground, MD 21010-5423 by using the self- : : addressed Standardization Document Improvement Proposal (DD Form 1426) : a

5、ppearing at the end of this document or by letter. FSC 9160 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. c THIS DOCUMENT CONTAINS PAGES. “ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI L-W-120 62 A( EA) STAND

6、ARDS MIL IT ARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes (Copies of specifications , standards , handbooks , drawings and publications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as d

7、irected by the contract- ing officer. ) 2.2 Other publications. The following documents form a part of this speci- fication to the extent specified herein. The issues of the documents which are indicated as DoD adopted shall be the issue listed in the current DoDISS and the supplement thereto, if ap

8、plicable. ASTM STANDARDS B5 - Penetration of Bituminous kterials D 36 - Softening Point of Bitumen (Ring-and-Ball Apparatus) D li93 - Reagent Water D 3289 - Specific Gravity of Semi-Solid and Solid Bituminous D 3951 - Commercial Packaging Materials by Nickel Crucible (Application for copies should b

9、e addressed to ASTM, 1.916 Race Street, Philadelphia , PA 19103. ) (Industry association specifications and stanards are generally available for reference from libraries. and using Federal agencies.) They are also distributed among technical groups 2.3 Order of precedence. this specification and the

10、 references cited herein, the text of this specifica- tion shall take precedence. In the event of a conflict between the text of 3. REQUIREMENTS 3.1 Chemical and physical characteristics. The wax material shall be of a petroleum origin and shall conform to the chemical and physical characteristics o

11、f table I when tested as specified in therein. L- b 5 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-r“ - !MIL-W-12062A 71 7777706 0100085 2 m _ MIL-W-l2062A( EA) TABLE I. Characteristic Chemical and physical characteristics Test : : Minimum : Max

12、imum i paragraph : : Specific gravity at i5.6?/15.6“c : 0.950 : 1.000 : 4.2.4.1 : : Softening point : 88C : 104C : 4.2.4.2 : : Solubility in benzene, percent by weight : 98 : - : 4.2.4.3 : : Ash content, percent by weight - . : 0.15 : 4.2.4.4 : : Penetration : 25 : 40 : 4.2.4.5 : 4. QUALITY ASSURANC

13、E PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the con- tract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may us

14、e his own or any other facilities suitable for the performance of the inspection requirements speci- fied 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 as

15、sure supplies and services conform to prescribed requirements. 4.2 Quality conformance inspection. 4.2.1 Lotting. A lot shall consist of the petroleum wax produced by one manufacturer, at one plant, from the same materials, and under essentially the same mnufacturing conditions provided the operatio

16、n is continuous. In the event the process is a batch operation, each batch shall constitute a lot (see 6.3) 4.2.2 Sampling. 4.2.2.1 For examination of packaging. Sampling shall be conducted in accordance with MIL-STD-105. 4.2.2.2 For test. Sampling shall be conducted in accordance with table II. A r

17、epresentative specimen of approximately 500 grams (g) shall be removed from each sample container and placed in a suitable clean, dry container labeled to identify the lot and container from which it was taken. 4.2.3 Inspection procedure. 4.2.3.1 For examination of packaging. The sample unit shall b

18、e one filled unit , intermediate, or shipping container , as applicable , ready for shipment. Sample unit, intermediate, and shipping containers, as applicable, shall be examined for the following defects using an AQL of 2.5 percent defective: 3 Provided by IHSNot for ResaleNo reproduction or networ

19、king permitted without license from IHS-,-,-MIL-W-l2062A( EA) TABLE II. Sampling for test : Number of containers in batch or lot : Number of sample containers : 2 to 25 2 26 to i50 3 151 to 1,200 5 1,201 to 7,000 8 7,001 to 20,000 10 Over 20,000 20 (a) Container not as specified (b) Container damage

20、d or leaking (c) Marking incorrect, missing, or illegible 4.2,3.2 For test. sgecified i= rejection of the lot represented. Each sample specimen taken in 4.2.2.2 shall be tested as Failure of any test by any specimen shall be cause for 4.2.4 Tests. Water in accordance with ASTM D 1193 and reagent gra

21、de chem- icals shall be used throughout the tests. Where applicable, blank determina- tions shall be run and corrections applied where significant. Tests shall be condircted as follows : 4.2.4.1 Specific gravity. Determine the specific gravity of the specimen at 15.6“/i5.6“c in accordance with ASTM

22、D 3289. 4.2.4.2 Softening point. Determine the softening pint of the specimen in accordance with ASTM D 36. 4.2.4.3 Solubility in benzene. See 6.4 for testing precautions. Perform this test in a fume hood. to the nearest milligram (mg), in 100 milliliters (mL) of benzene. through a tared Gooch cruci

23、ble and wash the residue with separate portions of benzene until the washings are colorless. by continued suction, dry in an oven at 103 + 3“C, cool in a desiccator, and weigh to the nearest milligram. Reserve the-residue in the crucible for the determination of ash (4.2.4.4). Calculate the percent

24、by weight specimen solu- ble in benzene as follows: Dissolve approximately 1 g of the specimen, weighed Filter Remove the benzene from the crucible 100 (A - B) A Percent specimen soluble inbenzene = where: A = Weight of specimen, in grams, and B = Weight of residue in grams. 4.2*4.4 Ash content. Ign

25、ite the residue in the crucible (see 4.2.4.3) at approximately 500“C, cool in a desiccator, and weigh to the nearest milligram. Calculate the percent by weight ash content as follows: 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-F 1 t MIL-W-1206

26、2A 91 W Ob 0100087 b I MIL-W-l2062A( EA) 100A B Percent ash content = where: A = Weight of residue, in grams, and B = Weight of specimen in grams. 4.2.4.5 Penetration. Determine the penetration of the specimen in accord- ance with ASTM D 5. 5. PACKAGING 5.1 Packaging and marking. Packaging and marki

27、ng shall be in accordance with AS34 D 3951. 6. WTES 6.1 Intended use. Petroleum wax covered by this specification is intended for use in waterproofing munitions. 6.2 Ordering data. Acquisition documents should specify the title, number, and date of this specification. c 6.3 Batch. A batch is defined

28、 as that quantity of material which has been manufactured by some unit chemical process or subjected to some physical mixing operation intended to make the final product substantially uniform. 6.4 Testing precautions. This specification involves testing with chemical material which is potentially ha

29、zardous to personnel. Benzene is a known car- cinogen. All applicable safety rules, regulations, and procedures, including the use of a fme hood, must be followed in the handling and processing of benzene 6.5 Significant places. For the purpose of determining conformance with this specification, an

30、observed or calculated yalue should be rounded off “to the nearest unit“ in the last right-hand place of figures used in expressing the limiting value, in accordance with the rounding-off method of ASTM E 29. Custodian: Aw - EA Preparing activity: Army - EA Project No. 9160-AO49 *U.S GOVERNMENT PRINTING OFFICE 1985 - 505-038/23720 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-