ASTM_D_5630_-_13.pdf

Designation:D563013Standard Test Method forAsh Content in Plastics1This standard is issued under the fixed designation D5630;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.Scope*1.1 This test method was developed to determine the inor-ganic content of plastics by destructive ashing procedures.Ashlevels of 0.01%or above are covered by this test method.1.2 These ashing procedures are used only to quantify theresidual solids in the polymer and can not be used to identifythe individual chemical components of the ash,qualitatively.1.3 This test method is limited to those materials(includingglass)that are stable to 900C.Test Method D2584 is recom-mended for unknown samples,and in instances where fusion ofthe inorganic portions may be of concern.1.4 Fluorinated polymers and polymers containing haloge-nated components have not been included in these procedures.1.5 Two procedures for determining the inorganic residue inplastics are listed as follows:1.5.1 Procedure A,Muffle-Furnace Technique For 5 50gram samples.Samples are flamed over a burner prior to beingashed in a muffle furnace.1.5.2 Procedure B,Rapid-Ash Muffle-Furnace TechniqueFor 210 gram samples.Samples are ignited and ashed in amuffle furnace.NOTE1For more efficient ashing,the plastic sample should be in theform of powder or pellet.NOTE2This test method provides consistent results of filler contentfor a specific filler in a specific resin.However,this method may notprovide the absolute filler content in all cases.This includes polymersfilled with CaCO3,nano clays,and Carbon Black.NOTE3Procedure B is equivalent to ISO 3451/1-(E),Method A.1.6 The values stated in SI units are to be regarded as thestandard.1.7 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.See Section 9 forspecific precautionary statements.2.Referenced Documents2.1 ASTM Standards:2D883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD2584 Test Method for Ignition Loss of Cured ReinforcedResinsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2ISO Standard:ISO 3451/1-(E)PlasticsDetermination of AshPart 1:General Methods,Method ADirect Calcination33.Terminology3.1 DefinitionsFor definitions of plastics terms,see Ter-minologies D883 and D1600.There are no terms in this testmethod that require new or other than dictionary definitions.4.Summary of Test Method4.1 This test method is based on a loss in weight of a plasticsample when combusted to oxidize all organic matter.5.Significance and Use5.1 Inorganic residues from plastics ashing may beantiblock,fillers,reinforcements,catalyst residues,colorants,etc.The quantitative amounts of each are important variablesof the manufacturing process.6.Interferences6.1 A flame height of over 2.5 cm from the burner is likelyto cause a loss of fine particles.6.2 Large sample sizes(Note 5)could result in the evolutionof pyrolysis products that could affect the ash recovery.6.3 Furnace doors must be in the closed position during theignition period to prevent too-rapid oxidation and combustionof the sample(Note 7).1This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.70 on Analytical Methods.Current edition approved April 1,2013.Published April 2013.Originallyapproved in 1994.Last previous edition approved in 2006 as D5630-06.DOI:10.1520/D5630-13.2For 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.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.*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 6.4 Ensure that all crucibles are cooled to ambient tempera-ture before weighing.7.Apparatus7.1 BalanceA balance having the capability to weigh thesample to the nearest 0.0001 g.The balance shall be checkedperiodically to ensure accuracy.7.2 CruciblesPorcelain,platinum,or quartz-fiber,of suf-ficient size and inert to the material being tested.The quartz-fiber crucible is only used in Procedure B.7.3 MuffleFurnaceElectric-resistance-heatedormicrowave-heated furnace,capable of maintaining a tempera-ture of 900 6 25C.NOTE4If an electric muffle furnace is used,it should b