1、Designation:E128211Standard Guide forSpecifying the Chemical Compositions and SelectingSampling Practices and Quantitative Analysis Methods forMetals,Ores,and Related Materials1This standard is issued under the fixed designation E1282;the number immediately following the designation indicates the ye
2、ar 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.Scope1.1 This guide covers procedures for specifying composi-tional re
3、quirements and identifying appropriate sampling andquantitative analysis methodologies to be referenced in productspecification standards for metals,ores,and related materials.It is not intended to replace or conflict with either individualproduct specifications or standards covering broad classific
4、a-tions of products such as Test Methods A751.1.2 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 regulato
5、ry limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2A276 Specification for Stainless Steel Bars and ShapesA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base AlloysE135 Terminology R
6、elating to Analytical Chemistry forMetals,Ores,and Related MaterialsE255 Practice for Sampling Copper and Copper Alloys forthe Determination of Chemical CompositionE342 Test Method for Determination of Chromium Oxide inChrome Ores by Permanganate TitrimetryE350 Test Methods for Chemical Analysis of
7、Carbon Steel,Low-Alloy Steel,Silicon Electrical Steel,Ingot Iron,andWrought IronE1601 Practice for Conducting an Interlaboratory Study toEvaluate the Performance of an Analytical Method3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this guide see Termi-nology E135.4.Significance
8、 and Use4.1 This guide is intended to assist those writing or revisingcompositional specifications,sampling practices,and testmethods for ferrous and non-ferrous metals,ores,and relatedmaterials.It is directed toward those areas that must beaddressed to properly coordinate compositional specificatio
9、n,sampling practice,and test methods.Its use will help ensurethat compositional requirements are clearly defined and thatsampling practices and test methods are available to meetproduct specifications.4.2 This guide does not attempt to define which elementsshould be controlled,where samples should b
10、e taken,or howthey should be analyzed.These items are addressed in stan-dards such as Specification A276,Methods,Practices andTerminology A751,Test Method E34,Practice E255,TestMethod E342,and Test Methods E350.4.3 A primary purpose for ASTM sampling practices andtest methods is to provide widely-ac
11、cepted and tested method-ology for use in meeting ASTM product specifications.Al-though it is recognized that individual laboratories are free touse other methods,the availability of ASTM approved meth-odology is essential for referee purposes and to demonstratethat properly equipped laboratories ca
12、n make the requiredmeasurements.4.4 Sampling practices and test methods to be recom-mended for use in testing a given product are most easilyselected cooperatively by the specification-writing and themethods-writing committees that have jurisdiction over theproduct.When existing sampling or test met
13、hods do not meetthe needs of the new product specification standard,thespecification-writing committee should request that themethods-writing committee develop the required standards.ASTM Committee E01 is responsible for test methods and1This guide is under the jurisdiction of ASTM Committee E01 on
14、AnalyticalChemistry for Metals,Ores,and Related Materials and is the direct responsibility ofSubcommittee E01.20 on Fundamental Practices.Current edition approved Feb.1,2011.Published March 2011.Originallyapproved in 1989.Last previous edition approved in 2004 as E128298(2004).DOI:10.1520/E1282-11.2
15、For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West
16、 Conshohocken,PA 19428-2959.United States1 practices covering the sampling and analysis of most metals,ores,and related materials.5.Procedure5.1 List those elements which either positively or negativelyinfluence the products processing,properties,or performance.Do not list elements for which no justification exists forexercising compositional control or for which no test methodsexist.Nonessential compositional specifications increase test-ing costs with no benefit to producer or consumer.5.2 Est
