DLA A-A-694 E-2013 SODIUM CHLORIDE TECHNICAL.pdf
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1、Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: STDZNMGTdla.mil or Defense Logistics Agency - Aviation, ATTN: DLA Aviation-VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616. Since contact informa
2、tion can change, you may want to verify the currency of this address information using the ASSIST database at https:/assist.dla.mil. AMSC N/A FSC 6810 METRIC A-A-694E 21 February 2013 SUPERSEDING A-A-694D 30 May 2002 COMMERCIAL ITEM DESCRIPTION SODIUM CHLORIDE, TECHNICAL The General Services Adminis
3、tration has authorized the use of this commercial item description for all federal agencies. 1. SCOPE. This commercial item description (CID) covers two types and three forms of crystalline sodium chloride (salt) used for water conditioning. It shall be suitable for ion-exchange columns in which sod
4、ium chloride is used for regeneration. 2. CLASSIFICATION. The sodium chloride shall conform to the following types and forms: 2.1 Type. The type of sodium chloride shall be as specified in the acquisition order (see 7.3(b). Type I - 97.5 percent purity Type II - 99.5 percent purity 2.2 Form. The for
5、m of sodium chloride shall be as specified in the acquisition order (see 7.3(c). Form 1 - Compressed pellets Form 2 - Large granules (rock, solar, or evaporated) Form 3 - Small granules (table salt size) 3. SALIENT CHARACTERISTICS 3.1 Material. The sodium chloride provided shall be homogeneous and s
6、hall be free from dirt, fibers, lint, trash, or other foreign matter. Anti-caking or iodizing agents shall not be added. 3.2 Color. The product shall be white, grayish pink, or brownish white. 3.3 Chemical properties. The sodium chloride shall meet the chemical requirements of table I when tested in
7、 accordance with American Water Works Association (AWWA) B 200, “Sodium Chloride“. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-694E 2 TABLE I. Chemical properties. Chemical requirements Limits Type I Type II Moisture, percent, maximum 0.5 0.5
8、 Sodium chloride, percent, minimum (dry basis) 97.5 99.5 Water-soluble impurities, percent, maximum (dry basis) Calcium & magnesium (Ca & Mg) Sulfate (SO4) 0.75 1.25 0.15 0.35 Water-insoluble impurities, percent, maximum (dry basis) 0.50 0.05 Soluble & insoluble impurities, percent, maximum (dry bas
9、is) 2.50 0.50 Grease, fat, and oil, percent, maximum 0.01 0.01 pH 5.0 to 9.5 5.0 to 9.5 3.4 Physical properties. The sodium chloride shall meet the physical requirements of table II when tested in accordance with American Society for Testing and Materials (ASTM) C 136, “Standard Test Method for Siev
10、e Analysis of Fine and Coarse Aggregates“ (DoD adopted), and ASTM E 11, “Standard Specification for Wire Cloth and Sieves for Testing Purposes“ (DoD adopted). TABLE II. Physical properties. Particle size analysis, cumulative percent passing review Sieve 19.0 mm (3/4 in.) 9.5 mm (3/8 in.) 6.35 mm (1/
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