1、Designation:D721021Standard Practice forExtraction of Additives in Polyolefin Plastics1This standard is issued under the fixed designation D7210;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 pa
2、rentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This practice covers a variety of extraction techniquesfor antioxidant and slip additives used in polyolefins.Typically,the extracted additives are se
3、parated and quantified using achromatographic technique such as the procedure explained inTest Method D6953.Chromatographic analysis of the extractsis not included in this practice.1.2 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is therespons
4、ibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.NOTE1There is no known ISO equivalent to this standard.1.3 This international standard was developed in accor-dance with in
5、ternationally 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:2D883 T
6、erminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD6953 Test Method for Determination of Antioxidants andErucamide Slip Additives in Polyethylene Using LiquidChromatography(LC)E131 Terminology Relating to Molecular Spectroscopy2.2 Other Documents:Dionex ASE 3
7、50 Application Note 331Accelerated Sol-vent Extraction of Additives from Polymeric Materials33.Terminology3.1 Definitions:3.1.1 For definitions of plastic terms used in this practice,see Terminologies D883 and D1600.3.2 For units,symbols,and abbreviations used in thispractice refer to Terminology E1
8、31.3.3 Abbreviations:3.3.1 LDPELow-Density Polyethylene3.3.2 LLDPELinear Low-Density Polyethylene3.3.3 HDPEHigh-Density Polyethylene3.3.4 PPPolypropylene3.4 Definitions:Additives:3.4.1 BHEB2,6-di-t-butyl-4-ethyl-phenol or butylated hy-droxyethyl benzene,CAS No.4130-42-13.4.2 BHT2,6-di-t-butyl-cresol
9、orbutylatedhydroxytoluene,CAS No.128-37-03.4.3 2-benzotriazol-2-yl-4-methylphenol,CAS No.2440-22-43.4.4 bis(3,3,5,5-tetramethyl-4-piperidyl)decanedioate,CAS No.91450-21-43.4.5 Cis-13-docosenamide or erucamide slip,CAS No.112-84-53.4.6 N,N-diphenylbenzene-1,4-diamine,CAS No.74-31-73.4.7 2,2-ethyliden
10、e bis(4,6-di-t-butyl phenol),CAS No.112-84-53.4.8 Tetrakismethylene(3,5-di-t-butyl-4-hydroxy hydro-cinnamate)methane,CAS No.98584-37-33.4.9 1,3,5-trimethyl-2,4,6-tris(3,5-di-t-butyl-4-hydroxybenzyl)benzene,CAS No.99346-90-43.4.10 Octadecyl-3,5-di-t-butyl-4-hydroxy hydrocinnamate,CAS No.2082-79-33.4.
11、11 Sodium Alkyl Sulfonate,CAS No.68411-30-33.4.12 Tris(2,4-di-t-butylphenyl)phosphite,CAS No.31570-04-43.4.13 Tris(2,4-di-t-butylphenyl)phosphate(oxidizedTris(2,4-di-t-butylphenyl)phosphite)3.4.14 TNPPTris(nonylphenyl)phosphite,CAS No.26523-78-43.4.15 Hydrolyzed TNPPNonylphenol,CAS No.104-40-51This
12、practice is under the jurisdiction ofASTM Committee D20 on Plastics andis the direct responsibility of Subcommittee D20.70 on Analytical Methods andSection D20.70.01 on Physical Methods.Current edition approved Nov.15,2021.Published December 2021.Originallyapproved in 2006.Last previous edition appr
13、oved in 2013 as D7210 13.DOI:10.1520/D7210-21.2For 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.3https:/ Summary of
14、Changes section appears at the end of this standardCopyright 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 Deci
15、sion on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1?3.4.16 Oxidized TNPPTris(nonylphenol)phosphate CASNo.26569-53-94.Summary of Practice4.1 The polymer sample is ground to appro
16、ximately a0.5-mm(40-mesh)or 1-mm(20-mesh)particle size andextracted by one of the techniques listed in this practice.5.Significance and Use5.1 Separation and identification of additives used in themanufacture of polyolefin plastics is necessary in order tocorrelate performance properties with polymer composition.This practice provides guidelines for extracting phenolicantioxidants,phosphite antioxidants,UV stabilizers,antistaticagents,and slip additives,from milled polyolefin plastics.5.2 Water
