1、Designation: D81 87 (Reapproved 2014)Standard Specification forBasic Carbonate White Lead Pigment1This standard is issued under the fixed designation D81; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A
2、 number in parentheses indicates the year of last reapproval. A superscriptepsilon () 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 may
3、 be purchased in the dry form or as apaste in oil.1.2 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 Sta
4、ndards:2D185 Test Methods for Coarse Particles in PigmentsD280 Test Methods for Hygroscopic Moisture (and OtherMatter Volatile Under the Test Conditions) in PigmentsD1208 Test Methods for Common Properties of CertainPigmentsD1301 Test Methods for Chemical Analysis of White LeadPigments3. Composition
5、 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 carbonatewhite lead. The pigment shall conform to the followingrequirements:Lead carbonate, % 62 to 75Moisture and oth
6、er 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 thoroughlygrinding the specified pigment with linseed oil. The paste shallnot be caked in the container and shall br
7、eak 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 matter, max, % 0.7Coarse particles and skins (total residue retained on aNo. 325 (45-m) sieve), max, % of the
8、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 volatilethinner. The semipaste shall not be caked in the container andshall be readily stirred to a uniform mixture which s
9、hall 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 afterdrying, shall be not abnormally pungent or disagreeable. Thesemipaste shall conform to the following requirem
10、ents:Pigment, min, % 87.5Linseed oil, max, % 10.5Moisture and other volatile matter, %A1.5to3.0Moisture, max, % 0.7Coarse particles and skins (total residue retainedon a No. 325 (45-m) sieve), max, % of thedry pigment1.5AThe volatile matter shall be turpentine, volatile petroleum spirits, or any mix
11、turethereof.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 samples shall be taken at random from differentpackages from each lot, batch, days pack, or other unit ofproduction
12、 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 SI), except that for shipments of less than10 000 lb two samples shall be taken. At the option of thepurchaser, t
13、he samples may be tested separately or afterblending 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 ASTM test methods. Test procedures not covered by1This specification is under t
14、he 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 Dec. 1, 2014. Published December 2014. Originallyapproved in 1921. Last previous edition approved
15、in 2008 as D81 87 (2008)1.DOI: 10.1520/D0081-87R14.2For 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.Copyright
16、ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1ASTM test methods shall be mutually agreed upon by thepurchaser and the seller.5.1.1 Coarse ParticlesTest Methods D185.5.1.2 Moisture in PigmentTest Methods D280.5.1.3 Lead Carbonate and Total Oth
17、er ImpuritiesTestMethods D1301.5.1.4 Pigment, Linseed Oil, and Moisture and Other VolatileMatter in Paste in OilTest Methods D1208.6. Keywords6.1 basic carbonate; dry pigment; lead carbonate; linseedoil; paste; putty; white leadASTM International takes no position respecting the validity of any pate
18、nt 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 subject to revision
19、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 Headquarters. Your comme
20、nts 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 standard is copyrighted
21、 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). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 87 (2014)2
