ASTM E1724-95(2001)
(Guide)Standard Guide for Testing and Certification of Metal and Metal-Related Reference Materials (Withdrawn 2010)
Standard Guide for Testing and Certification of Metal and Metal-Related Reference Materials (Withdrawn 2010)
SIGNIFICANCE AND USE
This guide describes the suggested procedures for the preparation, testing, and certification of reference materials (RMs) to be used in the calibration, verification, and control of methods used to characterize the chemical composition of metals, ores, and related materials.
Certified reference materials are frequently rare and valuable commodities requiring investment of considerable cost and production time. They are frequently available for only a limited portion of a user’ range of interest.
When comparative analytical methods are employed, appropriate CRMs are often unavailable for calibration. In this case, the use of RMs is indicated as the alternative choice.
The use of uncertified homogeneous materials is appropriate for control chart programs where relative data consistency is being monitored. The use of CRMs for such purposes is often a misuse of valuable CRM stocks, especially when uncertified materials of suitable homogeneity are available. For information on the use and misuse of CRMs, see ISO Guide 33 and NBS Special Publication 260-100.5
Use CRMs and RMs with caution in the validation of analytical methods. The danger involves a potential for undetected systematic error, since the same methodology being validated may have been used to establish the values for the CRMs or RMs. For more information on the use of CRMs in the validation of analytical methods, see NIST Special Publication 829.6
SCOPE
1.1 This guide describes procedures to be considered for the testing and certification of metal, ore, and metal-related reference materials in the form of blocks, disks, rods, wires, chips, and powders.
1.2 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.
WITHDRAWN RATIONALE
This guide describes procedures to be considered for the testing and certification of metal, ore, and metal-related reference materials in the form of blocks, disks, rods, wires, chips, and powders.
Formerly under the jurisdiction of Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials, this guide was withdrawn in February 2010 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
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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: E1724 – 95 (Reapproved 2001)
Standard Guide for
Testing and Certification of Metal, Ore, and Metal-Related
1
Reference Materials
This standard is issued under the fixed designation E1724; 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 Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and
Wrought Iron
1.1 This guide describes procedures to be considered for the
E351 Test Methods for Chemical Analysis of Cast Iron—
testing and certification of metal, ore, and metal-related refer-
All Types
ence materials in the form of blocks, disks, rods, wires, chips,
E716 Practices for Sampling Aluminum and Aluminum
and powders.
Alloys for Spectrochemical Analysis
1.2 This standard does not purport to address all of the
E826 Practice for Testing Homogeneity of a Metal Lot or
safety concerns, if any, associated with its use. It is the
Batch in Solid Form by SparkAtomic Emission Spectrom-
responsibility of the user of this standard to establish appro-
etry
priate safety and health practices and determine the applica-
E877 Practice for Sampling and Sample Preparation of Iron
bility of regulatory limitations prior to use.
Ores and Related Materials for Determination of Chemical
2. Referenced Documents Composition
2
E1019 Test Methods for Determination of Carbon, Sulfur,
2.1 ASTM Standards:
Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt
E32 Practices for Sampling Ferroalloys and SteelAdditives
Alloys by Various Combustion and Fusion Techniques
for Determination of Chemical Composition
2.2 ISO Standards:
E34 Test Methods for ChemicalAnalysis ofAluminum and
ISO Guide 30 Terms and Definitions Used in Connection
Aluminum-Base Alloys
3
With Reference Materials
E50 Practices for Apparatus, Reagents, and Safety Consid-
ISO Guide 31 Contents of Certificates of Reference Mate-
erations for Chemical Analysis of Metals, Ores, and
3
rials
Related Materials
3
ISO Guide 33 Uses of Certified Reference Materials
E55 Practice for Sampling Wrought Nonferrous Metals and
ISO Guide 35 Certification of Reference Materials—
Alloys for Determination of Chemical Composition
3
General and Statistical Principles
E59 Practice for Sampling Steel and Iron for Determination
2
of Chemical Composition
3. Terminology
E88 Practice for Sampling Nonferrous Metals andAlloys in
3.1 Definitions—For definitions of terms used in this guide,
Cast Form for Determination of Chemical Composition
refer to Terminology E135.
E135 Terminology Relating to Analytical Chemistry for
3.2 Definitions of Terms Specific to This Standard:
Metals, Ores, and Related Materials
3.2.1 certification report—a document giving detailed in-
E178 Practice for Dealing With Outlying Observations
formation, supplementary to that contained in a certificate, on
E255 Practice for Sampling Copper and Copper Alloys for
the preparation of the material and the methods of measure-
the Determination of Chemical Composition
ment used in obtaining the certified value(s) for a given
E350 Test Methods for ChemicalAnalysis of Carbon Steel,
reference material. It includes a summary of the results
obtained (including a description of all factors affecting accu-
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This guide is under the jurisdiction of ASTM Committee E01 on Analytical
racy) and a description of the way in which the results were
Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
treated statistically.
Subcommittee E01.22 on Laboratory Quality.
3.2.2 certified reference material (CRM)—reference mate-
Current edition approved Jan. 10, 2001. Published January 2001. Originally
rial accompanied by a certificate, one or more of whose
approved in 1995. Last previous edition approved in 1995 as E1724 – 95. DOI:
10.1520/E1724-95R01.
property values are certified by a procedure which establishes
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
3
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
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E1724 – 95 (2001)
itstraceabilitytoanaccuraterealizationoftheunitinwhichthe yields accurate results on a CRM of similar composition which
property values are expressed; each certified value is accom- was analyzed at the same time.
panied by an uncertainty at a s
...
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