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
15、wn into a water trap by means of a funnel and suction. Cool, dilute with 125 mL of hot water and stir to dissolve all soluble salts. Filter the solution on No. 40 Whatman paper, or equivalent, wash the residue free of perchloric acid and salts with HC1 (1 :20), and then with several portions of hot
16、water. Transfer paper and residue to a clean platinum crucible, ignite gently until the filter paper is consumed and finally at a bright red heat. Cool in a desiccator and weigh. Add 3 to 4 drops of H2S04 (specific gravity 1.84) and approximately 5 mL of hydrofluoric acid. Evaporate to dryness on a
17、hot plate, heat again to a bright red heat, cool and weigh. Calculate the loss in weight between weighings as percent silica. 3.5.5 Purity (as Fe,O,). Test type I and II samples as specified in ASTM D 50; however, calculate the purity-foi both types as follows: Purity (as percent FqO,) = 7.985 N-v)N
18、 W 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- = 9018054 O001991 841 = A-A-59280 1 Where, V = mL of KMnO, used to titrate the sample, v = mL of KMnO, used to titrate the blank, N = normality of KMnO, solution, W = weight of sample, g. 3.5.6 Ca
19、lcination loss. Test type I as specified in ASTM D 50. 4. REGULATORY REQUIREMENTS 4.1 Marking, uackaning. and labeling. Material shall be labeled, packed, and marked in accordance with Title 49, Code of Federal Regulations (CFR), paragraphs 100 to 185. 4.2 Recycled materials. The offeror/contractor
20、is encouraged to use recovered materials to the maximum extent practical, in accordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR). 4.3 Material safety data sheet (MSDS). An MSDS shall be prepared and furnished in - accordance with 29 CFR 1910.1200. 5. QUALITY ASSURANCE PROVIS
21、IONS 5.1 Product conformance The product provided shall meet the salient characteristics of 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 gove
22、rnment reserves the right to require proof of such conformance. 5.2 Market acceDtability. The item offered must have been sold to the government or commercial market. 6. PACKAGING. Preservation, packing, and marking shail be as specified in the contract or order. 7. NOTES. This section contains info
23、rmation of a general or explanatory nature that is helpful, but is not mandatory. 7.1 Part identification number (PIN) . The foiowing part identification numbering procedure is for government purposes and does not constitute a requirement for the contractor. AA 59280 - SS 1 Examples of PINS: AA59280
24、-SS1, AA59280-SS2, AA59280-NN Designator for: 1 = Coarse, 2 = Fine, Blank = None Designator for type: SS = Synthetic, NN = Naturai Dash CID number Prefk for CID c d 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-m 9018054 O001992 788 m f MIL-1-706
25、 Class 1 Class 2 Class 3 A-A-5 9280 I Amendment 1 A-A-59280 Type I, Class 1 Type I, Class 2 Type II Type II Type I, Class 1 Type I, Class 2 7.2 Source of documents. 7.2.1 The CFR and FAR may be obtained from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402-0001.
26、 7.2.2 ASTM standards may be obtained from American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959. 7.3 OrderinP data. Acquisition documents must specie the following: a. Title, number, and date of this CID. b. Type, and class (if appropriate), of red iron
27、 oxide required (see 2). c. Whether a first article sample is required (see 3.1). d. Packaging requirements (see 6). e. Unit of issue and quantity. 7.4 National stock number (NSN). The following NSN corresponds to this CID: 6810-00-357-0973. It is for Type II, Natural and may not be indicative of al
28、l possible NSNs associated with this document. 7.5 Cross-reference of classification. Table III is a cross-reference of classification changes Com MIL-I-706A to this CID. TABLE III. Cross-reference of classification changes. MILITARY INTERESTS: Custodians Army-AR Navy - OS CIVIL AGENCY COORDINATING ACTIVITY: GSA - 10FTE Preparing Activity: DLA - GS Reviewer Army - EA (Project 6810-1487) 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
