1、 A-A-57179 D 9999974 0177307 702 Moisture, percent by weight Ferrous ion (Fe+), percent by weight Granulation, percent by weight passing U.S. Sieve No. 80 (1 80 pm) Metallic iron, percent by weight Total iron, percent by weight i - 0.20 ASTM D280, Method A - 1 .o0 2.2.1 22.0 35.9 ASTM D3872 69.0 - 2
2、.2.2 99.0 - ASTM B2 14 . METRIC 2 Ami11998 SUPERSEDING 27Febniary1990 A-A-59 179 MIL-I-275D COMMERCIAL ITEM DESCRIPTION IRON OXIDE, BLACK, TECHNICAL The General Services Administration has authorized the use of this commercial item description by all federal agencies. 1. SCOPE. This commercial item
3、description covers one class of technical grade, black iron (II, III) (ferroso-ferric) oxide (Fe,04) intended for use in pyrotechnic mixtures. This is a modified commercial item. 2. SALIENT CHARACTERISTICS 2.1 Characteristics. Iron oxide shall conform to the chemical and granulation characteristics
4、of Table I. TABLE I. Chemical and granulation characteristics. I Characteristic I Minimum I Maximum I Test requirement Beneficial comments, recommendations, additions, deletions, clarifications, etc., and any other data which may improve this document should be sent by letter to: Defense Supply Cent
5、er Richmond (DSCR), ATTN: DSCR-VBD, 8000 Jefferson Davis Highway, Richmond, VA 23297-561 O. AMSC N/A FSC 6810 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59179
6、9999974 O177308 649 A-A-591 79 2.2 Tests. Water, in accordance with ASTM D1193, and reagent grade chemicals shall be used throughout the tests. Where applicable, blank determinations shall be run and corrections applied where significant. Tests shall be conducted as specified in table I and as follo
7、ws: 2.2.1 Metallic iron. 2.2.1.1 Zimmerman-Reinhardt reagent. Dissolve 5 1 grams (g) of manganous sulfate, monohydrate (MnSO4.H20) in 300 milliliters (mL) of water. Add a cooled solution of 130 mL of concentrated sulfuric acid in 300 mL of water and 138 mL of concentrated phosphoric acid. Dilute to
8、1 liter with water. 2.2.1.2 Procedure. Weigh to the nearest O. 1 milligram (mg) approximately 2 g of the specimen into a 250-mL Erlenmeyer flask. Add 3 g of mercuric chloride, displace the air from the flask with a continuous flow of carbon dioxide and add 1 O0 mL of boiling water. Place on a steam
9、bath for 1 O minutes and agitate frequently while continuing the flow of carbon dioxide. Remove from the steam bath, cool to room temperature, and discontinue the flow of carbon dioxide. Filter, and wash the residue with water, catching the filtrate and washings in a beaker containing 25 mL of Zimme
10、rman-Reinhardt reagent, prepared as specified in 2.2.1 .l, and 350 mL of water. Titrate immediately with O. 1N potassium permanganate solution. Calculate the percent by weight metallic iron as follows: Percent by weight metallic iron = 5.585AB W where: A = Milliliters of potassium permanganate solut
11、ion used, B = Normality of potassium permanganate solution, and W = Weight of specimen, in grams 2.2.2 Total iron. Weigh to the nearest O. 1 mg approximately 0.2 g of the specimen into a porcelain crucible weighed to the nearest O. 1 mg. Ignite at dull red heat for at least 1 hour. Cool to room temp
12、erature, add 5 mL of concentrated hydrochloric acid, cover with a watch glass, and place on a steam bath. As the characteristic yellow color of ferric chloride forms, decolorize by adding dropwise, and with stirring, a solution made by dissolving 50 g of stannous chloride, dihydrate (SnC12.2H20) in
13、1 O0 mL of concentrated hydrochloric acid and diluting to 1 liter with water. (Note: a large excess of stannous chloride leads to the formation of black compounds which spoil the analysis, or to excessive amounts of mercurous chloride which leads to high results. If the proper amount of stannous chl
14、oride has been added, a slightly silky precipitate of mercurous chloride is obtained.) Continue the dropwise addition of the stannous chloride solution as the ferric chloride color forms until all of the specimen is dissolved and the solution is completely decolorized. Add one or two drops of the st
15、annous chloride solution in excess. Remove from the steam bath, cool to room temperature, and add at one stroke, 15 mL of 1 O-percent mercuric chloride solution. Allow to stand for 2 minutes covered with a watch glass. Wash the contents of the crucible into a beaker containing 25 mL of Zimmerman-Rei
16、nhardt 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59179 M 9999974 0177309 585 M A-A-59 1 79 . reagent, prepared as specified in 2.2.1.1, and 400 mL of water. Titrate immediately with a O. 1N potassium permanganate solution. Calculate the p
17、ercent by weight total iron as follows: Percent by weight total iron = 5.585AB W where: A = Milliliters of potassium permanganate solution used, B = Normality of potassium permanganate solution, and W = Weight of specimen, in grams. 3. REGULATORY REQUIREMENTS 3.1 Marking, oackaginn, and labeling. Ma
18、terial shall be labeled, packed, and marked in accordance with Title 49, Code of Federal Regulations (CFR), paragraphs 1 O0 to 185. 3.2 Recycled materials. The offeror/contractor is encouraged to use recovered materials to the maximum extent practical, in accordance with paragraph 23.403 of the Fede
19、ral Acquisition Regulation (FAR). 3.3 Material safety data sheet (MSDS). An MSDS shall be prepared and furnished in accordance with 29 CFR 191 O. 1200 and submitted as directed in the contract or order at the time of acquisition award. 4. QUALITY ASSURANCE PROVISIONS 4.1 Product conformance. The pro
20、duct 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 Government reserves the right to require
21、 proof of such conformance. 4.2 Market acceptability. The item offered must have been sold to the Government or commercial market. 5. PACKAGING. Preservation, packing, and marking shall be as specified in the contract or order. 6. NOTES (This section contains information of a general or explanatory
22、nature which is helpful, but is not mandatory.) 6.1 Source of documents. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- A-A-59179 m 9999974 0177310 2T7 A-A-59 1 79 6.1.1 Copies of the Code of Federal Regulations (CFR) and Federal Acquisition Regu
23、lation (FAR) may be obtained from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402-0001. 6.1.2 Copies of American Society for Testing and Materials (ASTM) standards may be obtained from the American Society for Testing and Materials, 100 Barr Harbor Drive, West
24、Conshohocken, PA 19428-2959. 6.2 Ordering data. Acquisition documents must speciQ the following: a. Title, number, and date of this CID. b. Unit of issue and quantity required. c. Packaging requirements (see 5). 6.3 Sipnificant figures. For the purpose of determining conformance with this commercial
25、 item description, an observed or calculated value should be rounded off “to the nearest unit” in the right-hand place of figures used in expressing the limiting value, in accordance with the rounding-off method of ASTM E29. 6.4 National stock number INSN). The following NSN corresponds to this CID:
26、 68 10-0 1-1 17- 4486. This may not be indicative of all possible NSNs for this document. 6.5 Subiect term (key word) listing. Ferrous oxide Metallic iron . Pyrotechnics Total iron MILITARY INTERESTS: Custodians Navy - OS Army - EA Reviewers Army - AR, MDl Navy - AS CIVIL AGENCY COORDINATING ACTIVITY: GSA - 10FTE Preparing Activity: DLA - GS (Project 6810-1600) 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
