ASTM E1916-11
(Guide)Standard Guide for Identification of Mixed Lots of Metals
Standard Guide for Identification of Mixed Lots of Metals
SIGNIFICANCE AND USE
Equipment and procedures described in this guide are comparative methods and are intended for identification or segregation, or both, of pieces or lots of metals that were mixed or lost their identity during certain manufacturing operations. It is presumed that all pieces or lots of metal have been previously checked and did meet applicable specifications.
The equipment and procedures described in this guide may also be suitable for identifying or segregating, or both, scrap metals.
SCOPE
1.1 This guide covers the identification or segregation, or both, of mixed metal lots under plant conditions using trained plant personnel.
1.2 The identification is not intended to have the accuracy and reliability of procedures performed in a laboratory using laboratory equipment under optimum conditions, and performed by trained chemists or technicians. The identification is not intended to establish whether a given piece or lot of metal meets specifications.
1.3 Segregation of certain metal combinations is not always possible with procedures provided in this guide and can be subject to errors.
1.4 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.
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Designation:E1916 −11
Standard Guide for
1
Identification of Mixed Lots of Metals
This standard is issued under the fixed designation E1916; 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 4. Significance and Use
1.1 This guide covers the identification or segregation, or 4.1 Equipment and procedures described in this guide are
both, of mixed metal lots under plant conditions using trained comparative methods and are intended for identification or
plant personnel. segregation,orboth,ofpiecesorlotsofmetalsthatweremixed
orlosttheiridentityduringcertainmanufacturingoperations.It
1.2 The identification is not intended to have the accuracy
is presumed that all pieces or lots of metal have been
and reliability of procedures performed in a laboratory using
previously checked and did meet applicable specifications.
laboratory equipment under optimum conditions, and per-
formed by trained chemists or technicians.The identification is 4.2 The equipment and procedures described in this guide
not intended to establish whether a given piece or lot of metal may also be suitable for identifying or segregating, or both,
meets specifications. scrap metals.
1.3 Segregation of certain metal combinations is not always
5. Equipment
possible with procedures provided in this guide and can be
5.1 Atomic Emission Spectroscopic or Spectrometric Equip-
subject to errors.
ment:
1.4 This standard does not purport to address all of the
5.1.1 Bench type spectroscopes generally with two sample
safety concerns, if any, associated with its use. It is the
tables and a split viewing field where the spectrum of the
responsibility of the user of this standard to establish appro-
unknownpiececanbevisuallyanddirectlycomparedtothatof
priate safety and health practices and determine the applica-
a piece of identified metal.
bility of regulatory limitations prior to use.
5.1.2 Mobile spectrometric equipment with a remote sam-
pling device. Two types of such units are described in 5.1.2.1
2. Referenced Documents
and 5.1.2.2.
2
2.1 ASTM Standards:
5.1.2.1 Unitswheretheparticlesremovedbyanarcorspark
E50 Practices for Apparatus, Reagents, and Safety Consid-
in the remote sampling device are conveyed to the main unit in
erations for Chemical Analysis of Metals, Ores, and
astreamofinertgasandanalyzedintheunitwithanarc,spark,
Related Materials
or plasma.
E135 Terminology Relating to Analytical Chemistry for
5.1.2.2 Unitswherethelightgeneratedfromthearcorspark
Metals, Ores, and Related Materials
at the remote sampling device is conveyed to the main unit
E977 Practice for Thermoelectric Sorting of Electrically
with fiberoptics, where it is analyzed.
Conductive Materials
(a) These units generally are programmed to produce an
output that: (1) shows the designation of the alloy, (2) gives the
3. Terminology
approximate elemental composition of the alloy, or (3) gives a
3.1 Definitions—For definitions of terms used in this test “go” or “no-go” indication based on parameters programmed
by the operator.
method, refer to Terminology E135
(b) These units require careful calibration and depend on the
quality and range of the reference materials used for the
calibration.
1
This guide is under the jurisdiction of ASTM Committee E01 on Analytical
Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
5.2 X-ray Fluorescence Spectrometric Equipment:
Subcommittee E01.20 on Fundamental Practices.
5.2.1 The portable and mobile units are supplied with a
Current edition approved Sept. 1, 2011. Published September 2011. Originally
source of radiation that can be an X-ray tube or radioactive
approvedin1997.Lastpreviouseditionapprovedin2004asE1916-97(2004).DOI:
10.1520/E1916-11.
isotopes, generally a mixture of two or more isotopes to
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
provide a larger spectrum coverage.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.2.1.1 These units are generally programmed to produce an
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. output that: (1) shows the designation of the alloy, (2) gives the
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E1916−11
approximate elemental composition of the alloy, or (3) gives a have the appropriate chemical composition, but also have
“go” or “no-go” indication based on parameters programmed appropriate metallurgical properties.
by the operator
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:E1916–97 (Reapproved 2004) Designation: E1916 – 11
Standard Guide for
1
Identification and/or Segregation of Mixed Lots of Metals
This standard is issued under the fixed designation E1916; 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
1.1 This guide covers the identification or segregation, or both, of mixed metal lots under plant conditions using trained plant
personnel.
1.2 The identification is not intended to have the accuracy and reliability of procedures performed in a laboratory using
laboratory equipment under optimum conditions, and performed by trained chemists or technicians. The identification is not
intended to establish whether a given piece or lot of metal meets specifications.
1.3 Segregation of certain metal combinations is not always possible with procedures provided in this guide and can be subject
to errors.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
E50 PracticesforApparatus,Reagents,andSafetyConsiderationsforChemicalAnalysisofMetals,Ores,andRelatedMaterials
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E977 Practice for Thermoelectric Sorting of Electrically Conductive Materials
2.2 Other ASTM Documents and Publications:
STP98Symposium for Rapid Identification of Metal, June 28, 1949
3. Significance and Use
3.1Equipmentandproceduresdescribedinthisguidearecomparativemethodsandareintendedforidentificationorsegregation,
or both, of pieces or lots of metals that were mixed or lost their identity during certain manufacturing operations. It is presumed
that all pieces or lots of metal have been previously checked and did meet applicable specifications.
3.2The equipment and procedures described in this guide may also be suitable for identifying or segregating, or both, scrap
metals. Terminology
3.1 Definitions—For definitions of terms used in this test method, refer to Terminology E135
4. Significance and Use
4.1 Equipment and procedures described in this guide are comparative methods and are intended for identification or
segregation, or both, of pieces or lots of metals that were mixed or lost their identity during certain manufacturing operations. It
is presumed that all pieces or lots of metal have been previously checked and did meet applicable specifications.
4.2 The equipment and procedures described in this guide may also be suitable for identifying or segregating, or both, scrap
metals.
5. Equipment
4.15.1 OpticalAtomic Emission Spectroscopic or Spectrometric Equipment:
45.1.1 Bench type spectroscopes generally with two sample tables and a split viewing field where the spectrum of the unknown
1
This guide is under the jurisdiction of ASTM Committee E01 on Analytical Chemistry offor Metals, Ores, and Related Materials and is the direct responsibility of
Subcommittee E01.20 on Fundamental Practices.
Current edition approved May 1, 2004. Published June 2004. Originally approved in 1997. Last previous edition approved in 1997 as E1916-97. DOI:
10.1520/E1916-97R04.
Current edition approved Sept. 1, 2011. Published September 2011. Originally approved in 1997. Last previous edition approved in 2004 as E1916-97 (2004). DOI:
10.1520/E1916-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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E1916 – 11
piece can be visually and directly compared to that of a piece of identified metal.
45.1.2 Mobile spectrometric equipment with a remote sampling device. Two types of such units are described in 4.1.2.15.1.2.1
and 4.1.2.25.1.2.2.
4.1.2.15.1.2.1 Units where the particles removed by an arc or spark in the remote sampling device are conveyed to the main
unit in a stream of inert gas and analyzed in the unit in a conventio
...
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