ASTM-B1027 › Standard Guide for Obtaining a Representative Sample of Copper and Copper Alloy in Particulate Form for Analysis
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Scope
1.1 This guide covers the procedures of acquiring a representative sample of copper and copper alloy scrap in the form of small particles for analysis. This method is for (but not limited to) determining the chemical composition using Atomic Emission Spectroscopy (AES), but other methods of tests may also be used depending on laboratory sample preparation. This guide addresses a composite analysis of the lot examined by the user.
1.2 This guide is also intended to be adaptable and work with different techniques that might be appropriate for different situations based on how copper and copper alloy scrap particles are collected and how the product is delivered.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 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.
Significance and Use
4.1 This guide is intended primarily for the sampling of particulated copper and copper alloy material for compliance with compositional specification requirements. “Granulated chops” commonly refers to wire and cable, but it may also include other forms and applications of copper such as, but not limited to, transformer windings, plumbing tube, radiators, and sheet. This guide also applies to lots of material that are already particulated in the as-received condition, that is, not subjected to mechanical processing such as turnings, shavings, dust, and fines.
4.2 Particles 3/4 in. and down in their largest dimension are recommended for sampling as “chops” or “particulates” in accordance with this guide. Larger particles may lend themselves to other methods of inspection, including visual, at the discretion of the user.
4.3 As-received particulated material packaging may vary as a function of the shippers’ and receivers’ capabilities. In areas of confinement, gaylord or container boxes are commonly used, but some shipments can be loose and unpackaged that can be dumped onto the floor for inspection.
4.4 Various physical sampling techniques are applicable: for example, shoveling to fill a bucket, or use of a pipe sampler or auger to obtain a core sample, representative of a full height sample of the cross-section of scrap in accordance with Practices B215. Tools described and depicted in Practices B215, and applicable here (but not limited to), include:
4.4.1 Sample or chute splitters;
4.4.2 Slot or tube samplers;
4.4.3 Scoops;
4.4.4 Spinning rifflers.
4.5 Users are encouraged to read Practices B215 Section 5 “Apparatus” for descriptions of equipment that may be applicable to sampling particulated copper material.
4.6 Pneumatic aspirators may also be employed to gather samples, as shown in Fig. 2 below.
4.11 Also as a guide, users should consider sampling no less than once per 5000 lb.
4.12 Users may choose to adapt their container sampling regime up or down depending on the perceived risk of the supply. For example, users may adopt a standard operating procedure that permits a reduced sampling rate or a waiver of testing altogether where the source of material or the process generating the material is known to be dedicated from a sole supplier, material and processing unit. On the other hand, users may choose to increase their sampling regime for any reason, such as when the containers in a load are visibly inconsistent, when the quality assurance practices for a given load cannot be verified (as with brokered loads), or when indicated by the conformance history of a given source.
4.13 The above suggested rate of sampling does not apply to re-testing.
Keywords
aspirator; augur; chute splitter; composite sample; cone and quarter; copper; copper alloys; granulated copper chops; granules; gross sample; recycled scrap; sample splitter; spinning riffler; test lot; test sample; tube splitter;
To find similar documents by ASTM Volume:
02.01 (Copper and Copper Alloys)
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This document is available in Paper format.
Document Number
ASTM-B1027-24
Revision Level
2024 EDITION
Status
Current
Modification Type
New
Publication Date
July 10, 2024
Document Type
Guide
Page Count
6 pages
Committee Number
B05.08