收藏 分享(赏)

ASTM_D_4004_-_06_2017.pdf

上传人:益****师 文档编号:178386 上传时间:2023-03-04 格式:PDF 页数:6 大小:108.37KB
下载 相关 举报
ASTM_D_4004_-_06_2017.pdf_第1页
第1页 / 共6页
ASTM_D_4004_-_06_2017.pdf_第2页
第2页 / 共6页
ASTM_D_4004_-_06_2017.pdf_第3页
第3页 / 共6页
ASTM_D_4004_-_06_2017.pdf_第4页
第4页 / 共6页
ASTM_D_4004_-_06_2017.pdf_第5页
第5页 / 共6页
ASTM_D_4004_-_06_2017.pdf_第6页
第6页 / 共6页
亲,该文档总共6页,全部预览完了,如果喜欢就下载吧!
资源描述

1、Designation:D400406(Reapproved 2017)Standard Test Methods forRubberDetermination of Metal Content by Flame AtomicAbsorption(AAS)Analysis1This standard is issued under the fixed designation D4004;the number immediately following the designation indicates the year oforiginal adoption or,in the case of

2、 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 These test metho

3、ds cover the determination of lead,zinc,copper,and manganese in raw rubber and rubbercompounds,vulcanized or unvulcanized.The level at whichthe metals are present is taken into account by suitableadjustments of sample mass and dilution.1.2 Certain compounding ingredients,present in the rubbersample

4、will dictate which of the methods should be used.Referto Section 3.Five methods of determination are as follows:SectionsMethod A8Method B9Method C10Method D14 22Method E23 311.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4

5、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.1.5 This international

6、 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.

7、Referenced Documents2.1 ASTM Standards:2D1076 Specification for RubberConcentrated,AmmoniaPreserved,Creamed,and Centrifuged Natural LatexD4483 Practice for Evaluating Precision for Test MethodStandards in the Rubber and Carbon Black ManufacturingIndustriesE663 Practice for Flame Atomic Absorption An

8、alysis(With-drawn 1997)32.2 ISO Standards:ISO 1396 RubberCopper ContentPhotometric Technique-Determination4ISO 1655 RubberManganese ContentPhotometric Tech-niqueDetermination43.Summary of Test Methods3.1 Method ADetermination of lead and zinc in rubber notcontaining any halogen;in the case of lead,a

9、lso not containingany silica filler.See Section 8.3.1.1 In MethodA,the rubber is furnace-dried in a platinumcrucible at 250C,followed by furnace ashing for 1 to 2 h at550C.The ash is dissolved with the aid of concentratedhydrochloric acid(HCl)and the resulting solution suitablydiluted for Atomic Abs

10、orption Spectrometric(AAS)determi-nation of the lead and zinc.3.2 Method BDetermination of lead and zinc in rubbercontaining silica filler,but no halogen.See Section 9.3.2.1 In Method B the rubber is ashed in platinum as inMethod A.The ash is then fused with a lithium or sodiumtetraborate or metabor

11、ate flux,after which the fused mixture isdissolved with the aid of HCl for subsequent AAS analysis.3.3 Method CDetermination of lead and zinc in rubbercontaining halogen.See Section 10.3.3.1 In Method C the rubber is wet-ashed with the aid ofconcentrated sulfuric acid(H2SO4)and nitric acid(HNO3),eva

12、porated to dryness,and further ashed in a muffle furnace at550C,after which the ash is dissolved as in Method A forsubsequent AAS analysis.1These test methods are under the jurisdiction of ASTM Committee D11 onRubber and Rubber-like Materials and are the direct responsibility of SubcommitteeD11.11 o

13、n Chemical Analysis.Current edition approved May 1,2017.Published May 2017.Originallyapproved in 1981.Last previous edition approved in 2012 as D4004 06(2012).DOI:10.1520/D4004-06R17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org

14、.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.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 100

15、36.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 Interna

16、tional Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.4 Method DDetermination of copper in raw rubber andrubber latex,both synthetic and natural(see 14.2).3.4.1 In Method D the rubber is ashed at 550C,the ash isthen digested in hydrochloric acid,and copper is determined byAAS analysis.3.5 Method EDetermination of manganese in raw naturalrubber and rubber latex,both synthetic and natural(see 23.2).3.5.1 In Method E the rub

展开阅读全文
相关资源
猜你喜欢
相关搜索

当前位置:首页 > 专业资料 > 国外标准

copyright@ 2008-2023 wnwk.com网站版权所有

经营许可证编号:浙ICP备2024059924号-2