Standard Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition

ABSTRACT
This specification covers the requirements for Halon 1301, or halogenated hydrocarbon compound Bromotrifluoromethane (CF3Br) as a fire-fighting medium. The fire-fighting equipment or hardware that employs Halon 1301, the conditions of employing such equipment (for example, handhelds, fixed installations, etc.), and the storage or transportation of Halon 1301, are not addressed in this specification. The material shall be tested for purity, methanol impurity, acidity, water content, halogen ion content, nonvolatile residue, suspended matter and sediment, and fixed or nonabsorbable gases in the vapor phase.
SCOPE
1.1 This practice covers the sampling, for the determination of chemical composition (Note 1) of nonferrous metals and alloys, excluding aluminum, in cast form for remelting or mechanical working.  
1.1.1 Refer to Practice E255 for copper and copper alloys.  
Note 1: The selection of correct portions of material and the preparation of a representative sample from such portions are necessary prerequisites to every analysis, the analysis being of no value unless the sample actually represents the average composition of the material from which it was selected.  
1.2 When agreed upon between the purchaser and the manufacturer, the heat sample and analysis may be accepted as representative of the composition of the metal. In such cases, each lot must be properly identified with the heats from which it was made.  
1.3 This practice is intended to cover the general principles of sampling applicable to nonferrous metals in cast form and is not intended to supersede or replace existing specification requirements for sampling of a particular material.  
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.  
1.5 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.  
1.6 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.

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31-Aug-2017
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ASTM E88-11(2017) - Standard Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition
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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.
Designation: E88 − 11 (Reapproved 2017)
Standard Practice for
Sampling Nonferrous Metals and Alloys in Cast Form for
Determination of Chemical Composition
This standard is issued under the fixed designation E88; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This practice covers the sampling, for the determination
of chemical composition (Note 1) of nonferrous metals and
2. Referenced Documents
alloys, excluding aluminum, in cast form for remelting or
2.1 ASTM Standards:
mechanical working.
E135 Terminology Relating to Analytical Chemistry for
1.1.1 Refer to Practice E255 for copper and copper alloys.
Metals, Ores, and Related Materials
NOTE 1—The selection of correct portions of material and the prepa- E255 Practice for Sampling Copper and Copper Alloys for
ration of a representative sample from such portions are necessary
the Determination of Chemical Composition
prerequisites to every analysis, the analysis being of no value unless the
sample actually represents the average composition of the material from 3. Terminology
which it was selected.
3.1 For definitions of terms used in this practice, refer to
1.2 When agreed upon between the purchaser and the
Terminology E135.
manufacturer, the heat sample and analysis may be accepted as
3.2 Definitions of Terms Specific to This Standard:
representative of the composition of the metal. In such cases,
3.2.1 portion, n—the term “portion” is used in this practice
each lot must be properly identified with the heats from which
to designate the selected ingots, slabs, etc., from which the
it was made.
sample is prepared.
1.3 This practice is intended to cover the general principles
3.2.2 sample, n—the term “sample” is used in this practice
of sampling applicable to nonferrous metals in cast form and is
to designate the final form of the material submitted for
not intended to supersede or replace existing specification
analysis (drillings, millings, etc.).Arepresentative sample may
requirements for sampling of a particular material.
best be defined as a small part containing the same components
1.4 The values stated in SI units are to be regarded as
in the same proportions as they occur in the relatively large
standard. The values given in parentheses are for information
mass of the original lot or lots of material.
only.
4. Selection of Portion
1.5 This standard does not purport to address all of the
4.1 Aportionrepresentativeofthetotalshipmentorlotshall
safety concerns, if any, associated with its use. It is the
be taken for sampling. This portion shall be so selected that a
responsibility of the user of this standard to establish appro-
minimum wastage of material is incurred, consistent with the
priate safety and health practices and determine the applica-
required accuracy in sampling.
bility of regulatory limitations prior to use.
4.2 The number of ingots, slabs, etc., selected to constitute
1.6 This international standard was developed in accor-
this portion shall comply with the requirements of the ASTM
dance with internationally recognized principles on standard-
specifications covering that particular material.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
5. Preparation of Sample
5.1 Machinable materials shall be sampled by drilling,
milling, or sawing. Materials that are too difficult to machine
This practice is under the jurisdiction of ASTM Committee E01 on Analytical
may be ground or crushed.
Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
Subcommittee E01.05 on Cu, Pb, Zn, Cd, Sn, Be, Precious Metals, theirAlloys, and
Related Metals. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2017. Published September 2017. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1950. Last previous edition approved in 2011 as E88 – 11. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/E0088-11R17. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E88 − 11 (2017)
5.2 Machinable materials in form of bar, billet, ingot, slab, sample during contact. Lubricants should be completely re-
cake, etc., shall be sampled by drilling five holes approxi- moved as soon as possible after the sampling operation by the
mately 1.27 cm ( ⁄2 in.) in diameter at points equally spaced use of sui
...

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