ASTM D561-82 (2020) pdf free.Standard Specification for Carbon Black Pigment for Paint.
1.1 This specification covers the pigment commerciallyknown as carbon black, which is suitable for use in themanufacture of protective or decorative coatings.
1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.
1.3 This international standard was developed in accordance with internationally recognized principles m srtondcor-ization established in the Decision on Principles for theDevelopment of International Standards，Guides and Recommendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Comnittee.
2.1 ASTM Standards:D50 Test Methods for Chemical Analysis of Yellow, Orange,Red,and Brown Pigments Containing Iron and Manga-nese D305 Test Method for Solvent-Extractable Material in BlackPigments D387Test Method for Color and Strength of ChromaticPigments with a Mechanical Muller
D1506 Test Methods for Carbon Black——Ash ContentD1509 Test Methods for Carbon Black—Heating LossD1514 Test Method for Carbon Black—Sieve Residue3.Composition and Properties
3.1 The pigment shall be made by burning natural gas (Typel) or oil (Type lI) in such a manner as to form a deposit ofcarbon. It shall be free of adulterants and be in the form ofpowder or dustless pellets and shall conform to the require-ments specified in Table 1.
3.2 The mass color and character of the tint and tintingstrength formed by a mixture with a white pigment shall bewithin mutually agreed upon limits of a standard acceptable toboth the purchaser and the seller when tested in accordancewith Test Method D387.
NoTE 1—For the tinting strength test a ratio of 100 parts of white to 1part of black is usually suitable.
4.1 Two samples shall be taken at random from differentpackages from each lot，batch,day’s pack，or other unit ofproduction in a shipment. When no markings distinguishingbetween units of production appear，samples shall be takenfrom different packages in the ratio of two samples for each5000 kg (10 000 lb),except that for shipments of less than10 000 lb two samples shall be taken.
4.2 At the option of the purchaser,the samples may betested separately or, after blending the samples from the sameproduction unit in equal quantities，tested as a compositesample.ASTM D561 pdf download.