1、Designation: D 83 84 (Reapproved 2002)Standard Specification forRed Lead Pigment1This standard is issued under the fixed designation D 83; 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 paren
2、theses indicates the year of last reapproval. A superscriptepsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers four grades of red pigmentcommercially kno
3、wn as red lead. The pigment may be pur-chased in the dry form or as a paste in oil.2. Referenced Documents2.1 ASTM Standards:D 49 Test Methods for Chemical Analysis of Red Lead2D 185 Test Methods for Coarse Particles in Pigments,Pastes, and Paints2D 1208 Test Methods for Common Properties of Certain
4、Pigments23. 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 entirely of oxides of lead,free of adulterants. The four grades of pigment shall conformto the following requirem
5、ents: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 and hydrogen peroxide, max, %1.0Lead monoxide, PbO remainderCoarse particles (total residue retained on a 4
6、5-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, 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
7、 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,shall not be caked in the container, and shall break up readilyin oil to form a smooth paint of brushing
8、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 residue retained ona No. 325 (45-m) sieve), max, % of the dry pigment1.5When mixed as indicated in the followi
9、ng 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 L)Turpentine 2 gills (0.24 L)Liquid drier 2 gills (0.24 L)NOTE 1The storage of paste red lead in places of
10、 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 95 % grade, if made into paste, should be usedwithin a short period of time after grinding. When pure red l
11、ead paste isto be stored for a considerable period of time, the 97 % or 98 % grade ofred lead should be specified. Therefore the manufacturer shall identify thegrade of red lead used in the paste and the date of manufacture.4. Sampling4.1 Two samples shall be taken at random from differentpackages f
12、rom each lot, batch, days 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 each10 000 lb (5000 kg), except that for shipments of less than10 000 lb two samp
13、les shall be taken. At the option of thepurchaser, the samples may be tested separately or afterblending in equal quantities the samples from the productionunit to form a composite sample.5. Test Methods5.1 Tests shall be conducted in accordance with the follow-ing ASTM test methods. Test procedures
14、 not covered by ASTMtest methods shall be mutually agreed upon between thepurchaser and the seller.5.1.1 Chemical AnalysisTest Methods D 49.5.1.2 Coarse ParticlesTest Methods D 185.5.1.3 Pigment, Linseed Oil, and Moisture and Other Volatile1This specification is under the jurisdiction of ASTM Commit
15、tee D01 on Paintand Related Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.31 on Pigment Specifications.Current edition approved Aug. 31, 1984. Published December 1984. Originallypublished as D 83 21 T. Last previous edition D 83 73 (1984)e1.2Annual Book of
16、 ASTM Standards, Vol 06.03.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Matter in Paste in OilTest Methods D 1208. 6. Keywords6.1 lead oxide; lead tetra oxide; pigment; red leadASTM International takes no position respecting the v
17、alidity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is s
18、ubject 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 comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headq
19、uarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This stan
20、dard 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).D832
