1、Designation: D 81 87 (Reapproved 2003)Standard Specification forBasic Carbonate White Lead Pigment1This standard is issued under the fixed designation D 81; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision.
2、 A number in parentheses indicates the year of last reapproval. A superscriptepsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the material commerciallyknown as basic carbonate white lead, used as a pigment and inputty. The pigment
3、may be purchased in the dry form or as apaste in oil.2. Referenced Documents2.1 ASTM Standards:2D 185 Test Methods for Coarse Particles in Pigments,Pastes, and PaintsD 280 Test Methods for Hygroscopic Moisture (and OtherMatter Volatile Under the Test Conditions) in PigmentsD 1208 Test Methods for Co
4、mmon Properties of CertainPigmentsD 1301 Test Methods for Chemical Analysis of White LeadPigments3. Composition and Properties3.1 Dry PigmentThe pigment shall be free of adulterantsand shall contain not more than traces of impurities incident towell-controlled manufacture of high-grade basic carbona
5、tewhite lead. The pigment shall conform to the followingrequirements:Lead carbonate, % 62 to 75Moisture and other volatile matter, max, % 0.7Total other impurities, max, % 1.0Coarse particles (total residue retained on a No.325 (45-m) sieve), max, %1.03.2 Paste in OilThe paste shall be made by thoro
6、ughlygrinding the specified pigment with linseed oil. The paste shallnot be caked in the container and shall break up readily in oilto form a smooth paint of brushing consistency. The paste shallconform to the following requirements:Pigment, min, % 89Linseed oil, max, % 11Moisture and other volatile
7、 matter, max, % 0.7Coarse particles and skins (total residue retained on aNo. 325 (45-m) sieve), max, % of the drypigment1.53.3 Semipaste Containing Volatile ThinnerThe semipasteshall be made by thoroughly grinding the specified pigmentwith a mixture of linseed oil and a small amount of volatilethin
8、ner. The semipaste shall not be caked in the container andshall be readily stirred to a uniform mixture which shall mixreadily with oil, turpentine, or volatile petroleum spirits to forma smooth paint of brushing consistency. The odor of thesemipaste, as taken from the container, while drying or aft
9、erdrying, shall be not abnormally pungent or disagreeable. Thesemipaste shall conform to the following requirements:Pigment, min, % 87.5Linseed oil, max, % 10.5Moisture and other volatile matter, %A1.5 to 3.0Moisture, max, % 0.7Coarse particles and skins (total residue retainedon a No. 325 (45-m) si
10、eve), max, % of thedry pigment1.5_AThe volatile matter shall be turpentine, volatile petroleum spirits, or any mixturethereof.3.4 The color and color strength, when specified, shall bewithin mutually agreed upon limits of a standard acceptable toboth the purchaser and the seller.4. Sampling4.1 Two s
11、amples shall be taken at random from differentpackages from 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 each 5tons (inch-pound or
12、 SI), except that for shipments of less than10 000 lb two samples shall be taken. At the option of thepurchaser, the samples may be tested separately or afterblending in equal quantities the samples from the sameproduction unit to form a composite sample.1This specification is under the jurisdiction
13、 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 Dec. 1, 2003. Published December 2003. Originallyapproved in 1921. Last previous edition approved in 1987 as D 81
14、 87 (1999).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 Barr Harbor Dri
15、ve, PO Box C700, West Conshohocken, PA 19428-2959, United States.5. Test Methods5.1 Tests shall be conducted in accordance with the appro-priate ASTM test methods. Test procedures not covered byASTM test methods shall be mutually agreed upon by thepurchaser and the seller.5.1.1 Coarse ParticlesTest
16、Methods D 185.5.1.2 Moisture in PigmentTest Methods D 280.5.1.3 Lead Carbonate and Total Other ImpuritiesTestMethods D 1301.5.1.4 Pigment, Linseed Oil, and Moisture and Other VolatileMatter in Paste in OilTest Methods D 1208.6. Keywords6.1 basic carbonate; dry pigment; lead carbonate; linseedoil; pa
17、ste; putty; white leadASTM 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 validity of any such patent rights, and the riskof infringeme
18、nt 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 comments are invited either for revision of this standard or
19、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 not received a fair hearing you shouldmake your views kno
20、wn 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 81 87 (2003)2
