1、Designation: D 769 01 (Reapproved 2007)Standard Specification forBlack Synthetic Iron Oxide1This standard is issued under the fixed designation D 769; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A num
2、ber in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the pigment commerciallyknown as black synthetic iron oxide.1.2 The values stated in SI units are to be regarde
3、d as thestandard. The values given in parentheses are for informationonly.2. Referenced Documents2.1 ASTM Standards:2D50 Test Methods for Chemical Analysis of Yellow, Or-ange, Red, and Brown Pigments Containing Iron andManganeseD 185 Test Methods for Coarse Particles in PigmentsD 280 Test Methods fo
4、r Hygroscopic Moisture (and OtherMatter Volatile Under the Test Conditions) in PigmentsD 387 Test Method for Color and Strength of ChromaticPigments with a Mechanical MullerD 1208 Test Methods for Common Properties of CertainPigmentsD 3872 Test Method for Ferrous Iron in Iron Oxides3. Composition an
5、d Properties3.1 The pigment shall be a manufactured ferrous-ferricoxide obtained by chemical reaction. It shall be a soft dry finelypowdered pigment, free of admixtures of other substances andshall conform to the following requirements:Total ferrous and ferric oxide, min % 93Ferrous oxide (FeO), min
6、, % 20Water-soluble matter, max, % 0.5Moisture and other volatile matter, max, % 1.0Coarse particles (total residue retained on a No.325 (45-m) sieve), max, %0.5Hydrogen ion concentration (pH value) 4.5 to 8.53.2 The mass color and character of the tint and the tintingstrength formed by a mixture wi
7、th a white pigment shall bewithin mutually agreed upon limits of a standard acceptable toboth the purchaser and the seller.4. Sampling4.1 Two samples shall be taken at random from differentpackages from each lot, batch, days pack, or other unit ofproduction in a shipment. When no markings distinguis
8、hingbetween units of production appear, samples shall be takenfrom different packages in the ratio of two samples for each4540 kg or 10 000 lb, except that for shipments of less than 10000 lb, two samples shall be taken. At the option of thepurchaser, the samples may be tested separately or afterble
9、nding in equal quantities the samples from the sameproduction unit to form a composite sample.5. Test Methods5.1 Tests shall be conducted in accordance with the appro-priate test methods. Test procedures not covered by ASTM testmethods shall be mutually agreed upon between the purchaserand the selle
10、r.5.1.1 Total Iron OxidesTest Methods D50.5.1.2 Ferrous Iron in Iron OxidesTest Method D 3872.5.1.3 Water Soluble Matter, Maximum, PercentTest Meth-ods D 1208.5.1.4 Moisture and Other Volatile Matter, Maximum,PercentTest Methods D 280.5.1.5 Coarse Particles (Total Residue Retained on a 325-mesh siev
11、e (45 m), Maximum, PercentTest Methods D 185.5.1.6 Hydrogen Ion Concentration (pH value)Test Meth-ods D 1208.5.1.7 Mass Color and Tinting StrengthTest MethodD 387.6. Keywords6.1 black iron oxide; ferric oxide; ferrous oxide; iron oxide;manganese; pigment; synthetic iron oxide1This specification is u
12、nder the jurisdiction of ASTM Committee D01 on Paintand Related Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.31 on Pigment Specifications.Current edition approved Nov. 1, 2007. Published November 2007. Originallyapproved in 1944. Last previous edition app
13、roved in 2001 as D 769 01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100
14、Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the val
15、idity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your com
16、ments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have
17、 not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D 769 01 (2007)2
