ASTM_D_962_-_81_2020.pdf

Designation:D96281(Reapproved 2020)Standard Specification forAluminum Powder and Paste Pigments for Paints1This standard is issued under the fixed designation D962;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 parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers four types and three classes ofaluminum pigments for use in paints.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 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 Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D480 Test Methods for Sampling and Testing of FlakedAluminum Powders and PastesE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base Alloys(Withdrawn 2017)33.Classification3.1 Type ILeafing Aluminum Pigment Powder:3.1.1 Class A,FineMaximum of 0.1%retained on a No.325(45-m)sieve.3.1.2 Class B,MediumMaximum of 1.5%retained on aNo.325(45-m)sieve.3.1.3 Class C,CoarseMaximum of 20%retained on aNo.325(45-m)sieve.3.2 Type IILeafing Aluminum Pigment Paste:3.2.1 Class A,FineMaximum of 0.1%retained on a No.325(45-m)sieve.3.2.2 Class B,MediumMaximum of 1.0%retained on aNo.325(45-m)sieve.3.2.3 Class C,CoarseMaximum of 15%retained on aNo.325(45-m)sieve.3.3 Type IIINonleafing Aluminum Pigment Powder(Note):3.3.1 Class A,FineMaximum of 1.5%retained on a No.325(45-m)sieve.3.3.2 Class B,MediumMaximum of 6.0%retained on aNo.325(45-m)sieve.3.3.3 Class C,CoarseMaximum of 20%retained on aNo.325(45-m)sieve.3.4 Type IVNonleafing Aluminum Pigment Paste(Note 1):3.4.1 Class A,FineMaximum of 0.1%retained on a No.325(45-m)sieve.3.4.2 Class B,MediumMaximum of 1.0%retained on aNo.325(45-m)sieve.3.4.3 Class C,CoarseMaximum of 11.0%retained on aNo.325(45-m)sieve.NOTE1The particle size characteristics of the Type 3 and Type 4pigments of the same class do not correspond with each other;in the caseof Types 1 and 2 they do.4.Composition and Properties4.1 Aluminum Pigment Powder(Type 1,Leafing and Type 3,Nonleafing)The aluminum pigment powder shall consist ofcommercially pure aluminum in the form of fine,polishedflakes,and a suitable fatty lubricant.It shall contain no filler orextender pigments.4.2 Aluminum Pigment Paste(Type 2,Leafing and Type 4,Nonleafing)The aluminum pigment paste shall consist ofcommercially pure aluminum in the form of fine,polishedflakes,and a suitable fatty lubricant combined with a volatilethinner.It shall contain no filler or extender pigments.4.3 The aluminum pigments,powder,and paste of bothleafing and nonleafing types shall conform to the requirementsgiven in Table 1.4.4 The paint made from the powder or paste shall befree-flowing and shall give a continuous coating at least equalin smoothness,luster,and general appearance to that of areference sample mutually agreed upon by the purchaser andthe seller.1This specification is under the 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 June 1,2020.Published June 2020.Originallyapproved in 1948.Last previous edition approved in 2014 as D962 81(2014).DOI:10.1520/D0962-81R20.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor 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 issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.4.5 The aluminum pigments,powder and paste of bothleafing and nonleafing types,stored in unopened originalpackages within 6 months after shipment shall pass all testsapplicable to the respective type and class as described in TestMethods D480.5.Test Methods and Sampling5.1 Sampling and tests shall be conducted in accordancewith Test Methods D480.Since several of the methods areempirical and the results are affected by the method,thespecified procedures should be closely followed.6.Packaging6.1 Aluminum paste should be packaged in a polyventcontainer that can be safely vented in case of pres