1、Designation:E 1831 96Standard Guide forPreparing Certificates for Reference Materials Relating toChemical Composition of Metals,Ores,and RelatedMaterials1This standard is issued under the fixed designation E 1831;the number immediately following the designation indicates the year oforiginal adoption
2、 or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide describes the minimum information thatshould be included or referenced
3、in a certificate for a referencematerial relating to the chemical compositions of metals,ores,and related materials.The order of headings and the wordingmay be changed to suit the reference materials or their intendedapplications.It should not be used to disallow the use ofreference materials produc
4、ed prior to the publication of thisguide.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 regulatory li
5、mitations prior to use.2.Referenced Documents2.1ISO Documents:ISO Guide 31Contents of Certificates of Reference Ma-terials2ISO 3207,Statistical Interpretation of DataDeterminationof Statistical Tolerance Interval23.Significance and Use3.1 This guide describes the essential contents of a certifi-cate
6、 prepared to accompany a reference material to be used forthe standardization or control of an analytical test method,orboth,or the calibration of an instrument used in carrying outanalytical testing of metals,ores,and related materials.It isintended for use by suppliers or certified reference mater
7、ials forthe metals industry.3.2 This guide is based on criteria described in ISOGuide 31.4.Certificate Headings4.1 The order of headings and their wording may bechanged to suit the reference materials or their intendedapplication.4.1.1 Name and Address of the Certifying OrganizationPrint the name an
8、d address of the body or organization thataccepts responsibility for the information on the certificate.4.1.2 Title of the DocumentUse a distinct title,such as“Certified Reference Material,”“Certificate of Analysis,”or“Certificate of a Reference Material.”4.1.3 Status of the CertificateClearly state
9、 the status ofthe certificate,such as“Provisional”or“Revised.”4.1.4 Name of MaterialName the reference material toidentify its type.For example,“Carbon Steel,0.14%”ispreferable to“Steel”and“Labrador Iron Ore”is preferable to“Iron Ore.”4.1.5 Sample Number(and Batch Number)Assign aunique number to eac
10、h reference material,preferably accom-panied by the initials of the certifying organization,forexample“BCS No.24A.”Identify renewals by following thenumber with a letter.Increment the letter upward through thealphabet with each renewal.4.1.6 Date of CertificationProvide the date of issue of thecerti
11、ficate and the dates of all revisions.4.1.7 Other Forms or Sizes of Reference MaterialListother forms or sizes of the material named on the certificate.For example,indicate if one or more packaged units aresupplied,such as both chips and disks.4.1.8 Origin of Reference MaterialProvide the origin oft
12、he reference material that may be helpful to the user ininterpreting its characteristic,that is,a BOF Heat continuouslycast into 4 in.by 4 in.billets.4.1.9 Supplier of Reference MaterialIf the certifying or-ganization is not the supplier,list the name and address of theorganization from whom the ref
13、erence material can be ob-tained.4.1.10 Preparer of Reference MaterialIf the material wasprepared by an organization other than that which undertookthe testing and certification,identify that organization.1This guide is under the jurisdiction of ASTM Committee E01 on AnalyticalChemistry for Metals,O
14、res,and Related Materials and is the direct responsibility ofSubcommittee E01.22 on Statistics and Quality Control.Current edition approved Oct.10,1996.Published December 1996.2Available from American National Standards Institute,11 West 42nd Street,13th Floor,New York,NY 10036.1Copyright ASTM Inter
15、national,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.4.1.11 Description of Reference MaterialProvide a gen-eral description of the material,including a detailed explana-tion of the name and the physical character(that is,disks 31mm in diameter)of the material.Ment
16、ion toxic or hazardousingredients in the material with a warning in bold type ifwarranted.Supply a MSDS when required by law or regula-tion.4.1.12 Intended UseClearly state the purpose for whichthe material was issued so that it is not misused,for example,“for calibration of instruments for determining the chemicalcomposition of ore samples.”4.1.13 Stability,Transportation,and Storage InstructionsDescribe the conditions of transportation,handling,and storagethat are most favorable to the maximum
