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ASTM E1916-11(2019)

ASTM E1916-11(2019)

Standard Guide for Identification of Mixed Lots of Metals

2019-11-19 /Active
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.


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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

chemical spot test; eddy-current; identification; segregation; sorting; spectrometric; spectroscopic; thermoelectric;
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