ASTM D83-1984(2014) Standard Specification for Red Lead Pigment《铅丹颜料的标准规格》.pdf
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1、Designation: D83 84 (Reapproved 2014)Standard Specification forRed Lead Pigment1This standard is issued under the fixed designation D83; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A number in parenth
2、eses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers four grades of red pigmentcommercially known as red lead. The pigment may be pur-chased in the dry form or as a paste in oil.1
3、.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2D49 Test Methods of Chemical Analysis of Re
4、d LeadD185 Test Methods for Coarse Particles in PigmentsD1208 Test Methods for Common Properties of CertainPigments3. Composition and Properties3.1 Dry PigmentThe pigment shall be made by roastinglitharge or metallic lead, or compounds of lead that yieldlitharge by heating, and shall consist entirel
5、y of oxides of lead,free of adulterants. The four grades of pigment shall conformto the following requirements:True red lead (Pb3O4), min, %:85 % grade 8595 % grade 9597 % grade 9798 % grade 98Total impurities including moisture, water solublematter, and matter insoluble in a mixture ofnitric acid a
6、nd hydrogen peroxide, max, %1.0Lead monoxide, PbO remainderCoarse particles (total residue retained on a 45-m(No. 325) sieve), max, %1.0When mixed as indicated in the following table, the resultingpaint, brushed on a smooth vertical iron surface, shall dry hardand elastic without running, streaking,
7、 or sagging:Dry red lead 20 lb (9.1 kg)Raw linseed oil 5 pt (2.4 L)Turpentine 2 gills (0.24 L)Liquid drier 2 gills (0.24 L)3.2 Paste in OilThe paste shall be made by thoroughlygrinding the specified pigment with linseed oil (Note 1). Thepaste as shipped by the seller, and for three months thereafter
8、,shall not be caked in the container, and shall break up readilyin oil to form a smooth paint of brushing consistency. The pasteshall conform to the following requirements:Pigment, % 92 to 94Linseed oil, % 6.0 to 8.0Moisture and other volatile matter, max, % 0.5Coarse particles and skins (total resi
9、due retained ona No. 325 (45-m) sieve), max, % of the dry pigment1.5When mixed as indicated in the following table, the resultingpaint, brushed on a smooth, vertical iron surface, shall dry hardand elastic without running, streaking, or sagging:Red lead paste 20 lb (9.1 kg)Raw linseed oil 3 pt (1.4
10、L)Turpentine 2 gills (0.24 L)Liquid drier 2 gills (0.24 L)NOTE 1The storage of paste red lead in places of high temperatureshould be avoided, as heat accelerates the tendency of this material to cakeor harden. Purchasers are cautioned that 85 % grade red lead should not bebought in paste form. The 9
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