ASTM_D_1199_-_86_2014.pdf

Designation:D119986(Reapproved 2014)Standard Specification forCalcium Carbonate Pigments1This standard is issued under the fixed designation D1199;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.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 high-contentcalcium carbonate pigments,as follows:1.1.1 Type PCCalcium carbonate precipitate,preparedeither by complete solution or by carbonation of lime.1.1.2 Type GCGround mineral product.1.2 Six grades of pigments,based on particle size(see 3.3)are covered.1.3 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.2.Referenced Documents2.1 ASTM Standards:2C25 Test Methods for Chemical Analysis of Limestone,Quicklime,and Hydrated LimeD280 Test Methods for Hygroscopic Moisture(and OtherMatter Volatile Under the Test Conditions)in PigmentsD281 Test Method for Oil Absorption of Pigments bySpatula Rub-outD718 Test Methods for Analysis of Aluminum SilicatePigmentD1366 Practice for Reporting Particle Size Characteristics ofPigmentsD3360 Test Method for Particle Size Distribution by Hy-drometer of the Common White Extender Pigments(Withdrawn 2003)3E97 Method of Test for Directional Reflectance Factor,45-Deg 0-Deg,of Opaque Specimens by Broad-BandFilter Reflectometry(Withdrawn 1991)33.Composition and Properties3.1 The pigment may be prepared by chemical precipitationor by the fine grinding of natural calcium carbonate containingminerals.If additional agents are used or any surface treatmentis given,their purpose shall be indicated;acceptance shall be asagreed upon by the purchaser and the seller.3.2 CompositionThe pigment shall conform to the re-quirements for composition prescribed in Table 1.3.3 FinenessThe pigment shall conform to the followinggeneral requirements for fineness for the grade specified:3.3.1 Grade I(Fine Paint Grade)This grade possessessubstantial amounts of material in the fine sizes,and is ingeneral essentially below 15 to 20 m maximum size.Coarseparticles retained on the No.325(45-m)sieve shall be lessthan 0.05%.The maximum Specific Surface Diameter(SSD)shall be 2.5 m.3.3.2 Grade II(Coarse Paint Grade)This grade is char-acterized by substantial amounts in the 5-to 45-m range,andis lower in pigment value than Grade I.Coarse particlesretained on the No.325(45-m)sieve shall be less than 0.5%.The maximum SSD shall be 6 m.3.3.3 Grade III(Filler Grade)This grade is characterizedby substantial amounts in the 10-to 45-m range but with thecoarse particles retained on No.325(45-m)sieve less than25%and a maximum SSD of 9 m.3.3.4 Grade IV(Putty Powder Grade)This grade possessesless fines,and have substantial amounts of coarse particles.Thecoarse particles,however,shall not exceed 30%retained onthe No.200(75-m)sieve.The maximum SSD shall be 12 m.3.3.5 Grade V(Superfine Grade)This grade is a superfineground natural limestone and is characterized by majoramounts less than 5 m and a weight median particle size in therange of 1 m.The SSD is finer than 1 m.3.3.5.1 Particle size methods for Grade V that are applicableinclude transmission electron microscopy,scanning electronmicroscopy,and the Sedigraph.4Specific Surface Diameter can1This 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 Dec.1,2014.Published December 2014.Originallyapproved in 1952.Last previous edition approved in 2008 as D1199 86(2008).DOI:10.1520/D1199-86R14.2For 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.4The sole source of supply of the sedigraph known to the committee at this timeis Micromeritics,5680 Goshen Springs Rd.,Norcross,GA 30093.If you are awareof alternative suppliers,please provide this information to ASTM InternationalHeadquarters.Your comments will receive careful consideration at a meeting of theresponsible technical committee,1which you may attend.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 be determined by BET nitrogen absorption.The method ofmeasurement produces different values,therefore,the methodof measurement shall be agreed upon by the purchaser and theseller.3.3.6 Grade VI(Ultrafine Grade)This grade is an ultrafineprecipitated calcium carbonate and is characterized by majoramounts less th