1、Designation: D 81 87 (Reapproved 2008)1Standard 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 () indicates an editorial change since the last revision or reapproval.1NOTEThe units statement in subsection 1.2 was corrected editorially in July 2008.1. Scope1.1 This specification covers the material commercial
3、lyknown as basic carbonate white lead, used as a pigment and inputty. The pigment may 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 fo
4、r information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2D 185 Test Methods for Coarse Particles in PigmentsD 280 Test Methods for Hygroscopic Moisture (and OtherMatter Volatile Under the Test Conditions) in PigmentsD 1208 Test Methods for Common Properties of Cer
5、tainPigmentsD 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 carbonatewhite lead. The pigm
6、ent 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 thoroughlygrinding the spec
7、ified 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 matter, max, % 0.7Coa
8、rse 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 volatilethinner. The semipaste sha
9、ll 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 afterdrying, shall be not
10、 abnormally pungent or disagreeable. Thesemipaste shall conform to the following requirements: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 p
11、igment1.5_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 samples shall be taken at
12、 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 SI), except that for sh
13、ipments 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 of ASTM Committee D01 o
14、n Paintand Related Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.31 on Pigment Specifications.Current edition approved July 1, 2008. Published August 2008. Originallyapproved in 1921. Last previous edition approved in 2003 as D 81 87 (2003).2For referenced
15、 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 Drive, PO Box C700, West Cons
16、hohocken, 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 Methods D 185.5.1.2 Moistu
17、re 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; paste; putty; white leadASTM
18、 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 infringement of such rights, are ent
19、irely 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 for additional standardsan
20、d 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 known to the ASTM Committee o
21、n 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 (2008)12
