ASTM_D_1603_-_14.pdf

Designation:D160314Standard Test Method forCarbon Black Content in Olefin Plastics1This standard is issued under the fixed designation D1603;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.Scope*1.1 This test method covers the determination of the carbonblack content in polyethylene,polypropylene,and polybuty-lene plastics.Its use with acrylic or other polar monomermodifications which might affect the accuracy is not recom-mended.Determinations of carbon black content are madegravimetrically after pyrolysis of the sample under nitrogen.This test method is not applicable to compositions that containnonvolatile pigments or fillers other than carbon black.1.1.1 This test method is not applicable to materials con-taining brominated flame retardant additives at the end.1.2 The values stated in SI units are to be regarded asstandard.The values in parentheses are given for informationonly.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.NOTE1This standard and ISO 6964-1986(E)address the same subjectmatter,but differ in technical content.2.Referenced Documents2.1 ASTM Standards:2D883 Terminology Relating to PlasticsD4218 Test Method for Determination of Carbon BlackContent in Polyethylene Compounds By the Muffle-Furnace TechniqueE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 ISO Standard:ISO6964-1986(E)PolyolefinPipesandFittingsDetermination of Carbon Black by Calcination andPyrolysisTest Method and Basic Specification33.Terminology3.1 DefinitionsFor definitions of technical terms pertain-ing to plastics used in this specification,see TerminologyD883.4.Significance and Use4.1 The information provided by this test method is usefulfor manufacturing quality control,technical service,and re-search purposes;and is required by various material specifica-tions and for the calculation of optical absorptivity.4.2 Test Method D4218 is available for determining thecarbon black content of polyethylene compounds if so desired.5.Apparatus5.1 Electric Furnace,at least 20 cm(7.9 in.)long suitablefor use with the tubing described in 5.2.5.2 High Temperature Glass Combustion Tube4,of appro-priate diameter and approximately twice as long as the furnacedescribed in 5.1.5.3 StoppersTwo rubber or neoprene stoppers,to fit thetube described in 5.2,unless the tube is fitted with groundjoints and mating connectors.5.4 Glass Tubing,approximately 10 mm(0.39 in.)indiameter,of sufficient amount,and matching rubber or plastictubing for connections.5.5 Combustion Boat,approximately 8 by 1.9 by 1.3 cm(3.15 by 0.75 by 0.51 in.).Glazed porcelain,quartz high-silicaglass,or platinum is suitable.NOTE2A loose-fitting cover for the combustion boat is optional.If1This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.70 on Analytical Methods(Section D20.70.01).Current edition approved Aug.1,2014.Published August 2014.Originallyapproved in 1958.Last previous edition approved in 2012 as D1603-12.DOI:10.1520/D1603-14.2For 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.3ISO/IEC Selected Standards for Testing Plastics,Second Edition,published byASTM.Also available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036.4Borosilicate,high-silica,or equivalent glass tubing has been found satisfactoryfor this purpose.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 used,it shall be considered a part of the boat and handled and weighedwith it.5.6 Iron-Constantan Thermocouple,and a potentiometer ormillivoltmeter suitable for determining temperatures in therange 300 to 700C(572 to 1292F).5.7 Flow Meter,suitable for measuring gas flow at rates of1 to 10 L/min.5.8 Traps,three glass traps with removable ground-glassconnected heads and 10-mm(0.39-in.)diameter inner andconnecting tubes.NOTE3Only one trap is required if the entire apparatus train is placedin a fume hood.None is required if in addition,nitrogen of sufficientpurity is used and produced by the alternative means provided i