DLA A-A-59280-1998 IRON OXIDE FERRIC RED DRY (NATURAL AND SYNTHETIC) [Superseded DLA MIL-I-706 A CANC NOTICE 2 DLA MIL-I-706 A VALID NOTICE 1 DLA MIL-I-706 A (1) DLA MIL-I-706 A DL.pdf
《DLA A-A-59280-1998 IRON OXIDE FERRIC RED DRY (NATURAL AND SYNTHETIC) [Superseded DLA MIL-I-706 A CANC NOTICE 2 DLA MIL-I-706 A VALID NOTICE 1 DLA MIL-I-706 A (1) DLA MIL-I-706 A DL.pdf》由会员分享,可在线阅读,更多相关《DLA A-A-59280-1998 IRON OXIDE FERRIC RED DRY (NATURAL AND SYNTHETIC) [Superseded DLA MIL-I-706 A CANC NOTICE 2 DLA MIL-I-706 A VALID NOTICE 1 DLA MIL-I-706 A (1) DLA MIL-I-706 A DL.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、- 9038054 0003988 257 METRICI A-A-5 9280 15 Julv 1998 SUPERSEDING 17 June 1988 MIL-I-706A COMMERCIAL ITEM DESCRIPTION IRON OXIDE, FERRIC, RED DRY (NATURAL AND SYNTHETIC) The General Services Administration has authorized the use of this commercial item description for all federal agencies. 1. SCOPE.
2、 This comercial item description (CID) covers two types and two classes of red iron (ferric) oxide for use in the manufacture of pyrotechnic mixtures, propellants, and inert fillers. One type has two classes (see 2). 2. CLASSIFICATION. Ferric iron oxide covered by this specification shall be of the
3、following types and classes as specified (see 7.3): Type1 - Synthetic Class 1 - Coarse Class 2 - Fine TypeII- Natural 3. SALIENT CHARACTERISTICS 3.1 First article. When specified (see 7.3), a first article sample shall be submitted for inspection. Beneficial comments, recommendations, additions, del
4、etions, clarifications, etc., and any data which may improve this document should be sent by letter to: Defense Supply Center Richmond (DSCR), ATTN: DSCR-VBD, 8000 Jefferson Davis Highway, Richmond, VA 23297-5610. AMSC NIA FSC 6810 DISTRIBUTION STATEMENT A. Approved for public release; distribution
5、is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- , m 9038054 0003989 193 m U.S.S. Sieve designation * A-A-59280 Type 1 Type II Class 1 Class 2 Percent pass Percent pass Percent pass d through minimum 1 O0 3.2 Toxic chemicals, hazardous
6、substances, and ozone dedeting substances (ODSs). The use of toxic chemicals, hazardous substances, or ODSs shall be avoided whenever feasible. through minimum through minimum - - 3.3 Particle size. The particle size of the ferric oxide (Fe,O,) shall conform to requirements of table I. Water-soluble
7、 material, maximum Aciditv (as H,SO,. maximum TABLE I. Ferric oxide uarticle size. Type I Type II 0.30 - 3.5.1 0.01 - 3.5.2 Silica, maximum minty (as F%O,), minimum Calcination loss, maximum 425 ym (No. 40) 150 p (No. 100) 75 ym (No. 200) . 45 um mo. 325) 0.15 - 3.5.4 98.00 50.0 3.5.5 1.50 - 3.5.6 -
8、 I - 85 I Note. All percentages shall be by weight using sieves conforming to American Society for Testing and Materials (ASTM) E 1 1. The powder shall pass through the required sieves readily without balling or the particles clinging together. 3.4 ProDerties. The iron oxide shall be a homogeneous c
9、rystalline composition and shall be free of lumps and any foreign matter. The properties shall be in accordance with table II. TABLE II. ProDerties. bv twe and Dercent. I Volatile matter. maximum I 0.50 I 1.0 I 3.5.3 I 3.5 Tests. 3.5.1 Water-soluble material. Test type I as specified in ASTM D 1208;
10、 however, calculate the increase in weight as percent water-soluble material. 3.5.2 Aciditv (as H,SO,). Add 100 milliliters (mL) of water to 10 grams (g) of type I sample. Boil, filter, and wash filkate with hot water. Test filtrate with litmus paper, and if acidic, titrate with O. 1N potassium hydr
11、oxide using methyl orange as indicator. Calculate the acidity as sulfuric acid (H,SO,) as follows: 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-5 92 8 O H2S04, percent = 4.9VN W Where, V = mL of potassium hydroxide solution used, N = normali
12、ty of potassium hydroxide solution, W = weight of sample, g. 3.5.3 Volatile matter. Test type I and II samples as specified in ASTM D 280; however, calculate percent volatile matter as follows for type I: Volatile matter, percent = A-B) 1 O0 (A-C) Where, A = weight of the weighing bottle and sample,
13、 g, B = weight of the weighing bottle and dried sample, g, C = weight of dry weighing bottle, g. 3.5.4 Silica. Weigh a 5 g sample of type I into a beaker. Add 20 mL of HCI (specific gravity 1.18) and heat to dissolve. Cool, add 30 mL “0, (1 : 1) and 30 mL of 60 percent perchloric acid. Carefully eva
14、porate the solution to fumes, and then boil for 15 minutes. Caution should be observed in the volatilization of perchloric acid. In order to prevent the accumulation of perchloric acid in the flue of the hood, it is suggested that at this point in the procedure, the acid fumes fiom the beaker be dra
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