NAVY A-A-59139-1998 ALUMINUM POWDER ATOMIZED (FOR USE IN EXPLOSIVES)《雾状铝粉(用于爆炸物)》.pdf
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1、A-A-59139 W 90LB054 O004093 158 Impurity Silicon Iron Zinc Copper Grit Oil and grease Volatile matter at 105 “C Alkalinity as magnesium hydroxide I INCH-POUND I 25 September 1998 A-A-59139 COMMERCIAL ITEM DESCRIPTION Maximum Percent Allowable 0.3 0.5 0.05 o. 1 0.05 0.2 o. 1 0.07 ALUMINUM POWDER, ATO
2、MIZED (FOR USE IN EXPLOSIVES) Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Indian Head Division, Naval Surface Warfare Center, Standardization Team (Code 840M), 101 Strauss Avenue,
3、 Indian - Head, MD 20640-5035. The General Services Administration has authorized the use of this commercial item description as a replacement for Military specification MIL-A-82728(OS) for all federal agencies. 1. SCOPE. 1.1 This commercial item description covers one type of atomized aluminum powd
4、er for use in explosives. 2. SALIENT CHARACTERISTICS. 2.1 Material. The aluminum powder shall be microfine virgin aluminum particles manufactured by an atomizing process. The shape of the particles shall be spheroidal. 2.2 Aluminum purity. The aluminum purity shall be a minimum of 98.5 percent. 2.2.
5、1 Impurities. The impurities shall not exceed the maximum specified in Table I. TABLE I. Maximum allowable impurities. AMSC NIA FSC 6810 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
6、nse from IHS-,-,-A-A-59139 9038054 0004094 O94 r t A-A-59 139 2.3 Screen analysis. The material shal conform to the following requirements for the screen analysis: a. A minimum of 95.0 percent shall pass through a U.S. Standard 200 sieve b. A minimum of 80.0 percent shall pass through a U.S. Standar
7、d 325 sieve. 2.4 Average particle size. The average particle size of the material shall be 11 to 27 micrometers as determined by a Fisher subsieve sizer. 3. REGULATORY REQUIMENTS. 3.1 This standard does not purport to address ail of the safety problems, if any, associated with its use. It is the res
8、ponsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 4. QUALITY ASSURANCE PROVISIONS. 4.1 Product conformance. The product provided shall meet the salient characteristics of
9、this Commercial Item Description, conform to the producers own drawings, specifications, standards, and quality assurance practices, and be the same product offered for sale in the commercial market. The government reserves the right to require proof of such conformance. 4.2 Inspection requirements.
10、 Ten percent of each single batch or continuous production run (produced using a single set of operations and operating conditions) shall be randomly selected for acceptance tests. The sample shali be uniformly mixed and an 8-ounce composite sample selected for the tests of 4.3. 4.3 Testmethods. 4.3
11、.1 Percent ahimmum and eiemental impurities. Determine percent aluminum by difference and elemental impurities (silicon, iron, zinc, and copper) by chemical analysis in accordance with ASTM E 34, or by spectrochemical analysis in accordance with ASTM E 101. 4.3.2 Grit. Weigh to the nearest 0.01 gram
12、, 5.0 to 5.1 gram of aluxninum powder into a 400 mL beaker. Cover with approximately 10 mL of water. Cautiously and slowly, add 60 mL of concentraed hydrochloric =id. Cover with a ribbed watch glass, heat to effect solution of sample, cool, then transfer sufficient solution to a tared 50-mL centrifu
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