1、Designation:D60782(Reapproved 2019)Standard Specification forWet Ground Mica Pigments1This standard is issued under the fixed designation D607;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in pare
2、ntheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers two types of finely dividedmuscovite mica,
3、commercially known as wet ground mica,suitable for use in the manufacture of protective coatings.1.2 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International S
4、tandards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D185 Test Methods for Coarse Particles in PigmentsD280 Test Methods for Hygroscopic Moisture(and OtherMatter Volatile Under the Test Conditio
5、ns)in PigmentsD716 Test Methods for Evaluating Mica PigmentD1208 Test Methods for Common Properties of CertainPigments3.Composition and Properties3.1 The pigments shall be made by wet grinding muscovitemica and shall conform to the requirements for propertiesprescribed as follows:TypesARegular 325 M
6、GradeBFine GradeApparent density,max,lb/ft3(g/cm3)12.0(0.2)12.0(0.2)TypesARegular 325 MGradeBFine GradeMoisture and other volatilematter,max,weight%0.50.5Grit,max,weight%0.50.5Coarse particles,max,weight%:Total residue retained on aNo.140(106-m)sieve0.10.01Total residue retained on aNo.325(45-m)siev
7、e12.03.0Ignition loss,max,weight%(dry basis)5.05.03.2 The color shall be within mutually agreed upon limits ofa standard acceptable to both 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
8、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 the samp
9、les 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 methods.Test procedures not covered by ASTMmethods shall be mutually agreed upon b
10、etween the purchaserand the seller.5.1.1 Apparent DensityTest Methods D716.5.1.2 MoistureTest Methods D280.5.1.3 GritTest Methods D716.5.1.4 Coarse ParticlesTest Methods D185.5.1.5 Ignition LossTest Methods D1208.6.Keywords6.1 mica;muscovite;wet ground1This specification is under the jurisdiction of
11、 ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.31 on Pigment Specifications.Current edition approved June 1,2019.Published June 2019.Originallyapproved in 1941.Last previous edition approved in 2012 as D607 82(2012).DOI
12、:10.1520/D0607-82R19.2For 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 ASTM International,100 Barr Harbor
13、Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issu
14、ed by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 ASTM 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 valid
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