ASTM E2972-15
(Guide)Standard Guide for Production, Testing, and Value Assignment of In-House Reference Materials for Metals, Ores, and Other Related Materials
Standard Guide for Production, Testing, and Value Assignment of In-House Reference Materials for Metals, Ores, and Other Related Materials
SIGNIFICANCE AND USE
4.1 This document provides guidance for the implementation of procedures for the preparation, testing, and documentation of an in-house reference material (hereafter called an iRM) to be used for a number of purposes, enumerated in the following document, associated with development, validation, and control of chemical and physical measurement processes.
4.2 This guide is primarily concerned with characterization of the chemical compositions of metals, ores, and related materials. For all these materials, there is a continuing, strong demand for reference materials (RMs) that is difficult for metrology institutes and private certified reference material (CRM) developers to meet because CRM development requires substantial investments of time and money. The metals and mining industries consume RMs and create new product and by-product compositions at high rates. They use analytical methods that provide rapid and accurate determinations, and both quality assurance and quality control can be maintained using efficient procedures provided appropriate iRMs are available.
4.3 The user of this guide must recognize that development of an iRM for any purpose carries with it the responsibility to design and execute the development process correctly, and to document the process thoroughly. In addition, the user of an iRM bears the responsibility for correct use of the iRM material within its design limitations.
4.4 This guide contains discussions on material selection and sampling for RMs with some attention given to conversion to the final forms.
4.5 The use of iRMs is appropriate for control chart procedures to demonstrate that chemical measurement processes are under statistical control. This function requires demonstration of sufficient homogeneity of a material, but it does not require assignment of chemical and physical property values with associated, exhaustively evaluated uncertainties.
4.6 The use of iRMs is appropriate for calibration of test methods ...
SCOPE
1.1 This document provides guidance for the implementation of procedures for preparation of in-house reference materials for analytical testing of metals, ores, slags, and other materials encountered within the metals and mining industries.
1.2 This guide is applicable to the production of reference materials only (usually for internal use) and does not apply to the production of certified reference materials (CRMs). Materials may include metals, alloys, minerals, geological materials, manufacturing intermediates, and byproducts. Samples may be in a number of physical forms including blocks, disks, rods, wires, chips, granules, powders, and liquids.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E2972 − 15
Standard Guide for
Production, Testing, and Value Assignment of In-House
Reference Materials for Metals, Ores, and Other Related
1
Materials
This standard is issued under the fixed designation E2972; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E88 Practice for Sampling Nonferrous Metals and Alloys in
Cast Form for Determination of Chemical Composition
1.1 This document provides guidance for the implementa-
E135 Terminology Relating to Analytical Chemistry for
tion of procedures for preparation of in-house reference mate-
Metals, Ores, and Related Materials
rials for analytical testing of metals, ores, slags, and other
E178 Practice for Dealing With Outlying Observations
materials encountered within the metals and mining industries.
E255 Practice for Sampling Copper and Copper Alloys for
1.2 This guide is applicable to the production of reference
the Determination of Chemical Composition
materials only (usually for internal use) and does not apply to
E415 Test Method for Analysis of Carbon and Low-Alloy
the production of certified reference materials (CRMs). Mate-
Steel by Spark Atomic Emission Spectrometry
rialsmayincludemetals,alloys,minerals,geologicalmaterials,
E716 Practices for Sampling and Sample Preparation of
manufacturing intermediates, and byproducts. Samples may be
Aluminum and Aluminum Alloys for Determination of
in a number of physical forms including blocks, disks, rods,
Chemical Composition by Spectrochemical Analysis
wires, chips, granules, powders, and liquids.
E826 Practice for Testing Homogeneity of a Metal Lot or
1.3 This standard does not purport to address all of the
Batch in Solid Form by Spark Atomic Emission Spec-
safety concerns, if any, associated with its use. It is the
trometry
responsibility of the user of this standard to establish appro-
E877 Practice for Sampling and Sample Preparation of Iron
priate safety and health practices and determine the applica-
Ores and Related Materials for Determination of Chemi-
bility of regulatory limitations prior to use.
cal Composition and Physical Properties
E1086 TestMethodforAnalysisofAusteniticStainlessSteel
2. Referenced Documents
by Spark Atomic Emission Spectrometry
2
2.1 ASTM Standards:
E1329 Practice for Verification and Use of Control Charts in
E32 Practices for Sampling Ferroalloys and Steel Additives
Spectrochemical Analysis
for Determination of Chemical Composition (Withdrawn
E1806 Practice for Sampling Steel and Iron for Determina-
3
2015)
tion of Chemical Composition
E34 Test Methods for Chemical Analysis of Aluminum and
E2857 Guide for Validating Analytical Methods
Aluminum-Base Alloys
4
E50 Practices for Apparatus, Reagents, and Safety Consid-
2.2 ISO Standards:
erations for Chemical Analysis of Metals, Ores, and ISO Guide 30 Terms and Definitions Used in Connection
Related Materials
with Reference Materials
E55 Practice for Sampling Wrought Nonferrous Metals and
ISO Guide 30/Amd. 1 Revision of definitions for reference
Alloys for Determination of Chemical Composition
material and certified reference material
ISO Guide 35 Reference materials—General and statistical
principles for certification
1
This test method is under the jurisdiction of ASTM Committee E01 on
ISO Guide 98-3 Guide to the Expression of Uncertainty in
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
responsibility of Subcommittee E01.22 on Laboratory Quality.
Measurement (GUM: 1995)
Current edition approved Feb. 15, 2015. Published March 2015. DOI: 10.1520/
ISO/IEC 17025 General requirements for the competence of
E2972-15.
testing and calibration laboratories
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3 4
The last approved version of this historical standard is referenced on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
www.astm.org. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2972 − 15
3. Terminology demand for reference materials (RMs) that is difficult for
metrology institutes and private certified reference material
3.1 Definitions—For definitions of terms used in this guide,
(CRM) developers to meet because CRM development re-
refer to Terminology E135.
quires substantial inve
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.