Standard Practice for Sampling of Blister Copper in Cast Form for Determination of Chemical Composition

SIGNIFICANCE AND USE
This practice for sampling of cast blister copper is intended primarily to test such materials for compliance with compositional specifications. It is assumed that all who use these methods shall be trained samplers capable of performing common sampling procedures skillfully and safely.
The selection of correct test pieces and the preparation of a representative sample from such test pieces are necessary prerequisites to every analysis. The analytical results will be of little value unless the sample represents the average composition of the material from which it was prepared.
SCOPE
1.1 This practice describes a procedure for the sampling and sample preparation of cast blister copper for the determination of chemical composition.
1.2 This practice is intended to cover the general principles of sampling applicable to cast blister copper forms.
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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Historical
Publication Date
31-Jan-2007
Current Stage
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ASTM E1833-07 - Standard Practice for Sampling of Blister Copper in Cast Form for Determination of Chemical Composition
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E1833–07a
Standard Practice for
Sampling of Blister Copper in Cast Form for Determination
1
of Chemical Composition
This standard is issued under the fixed designation E1833; 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.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope collected with a commercial vacuum cleaner and ground in a
cuttermill.Samplesizereductionisaccomplishedwiththeuse
1.1 Thispracticedescribesaprocedureforthesamplingand
of a riffle and Tyler screens.
sample preparation of cast blister copper for the determination
of chemical composition.
5. Significance and Use
1.2 This practice is intended to cover the general principles
5.1 This practice for sampling of cast blister copper is
of sampling applicable to cast blister copper forms.
intended primarily to test such materials for compliance with
1.3 This standard does not purport to address all of the
compositional specifications. It is assumed that all who use
safety concerns, if any, associated with its use. It is the
these methods shall be trained samplers capable of performing
responsibility of the user of this standard to establish appro-
common sampling procedures skillfully and safely.
priate safety and health practices and determine the applica-
5.2 The selection of correct test pieces and the preparation
bility of regulatory limitations prior to use.
of a representative sample from such test pieces are necessary
2. Referenced Documents prerequisitestoeveryanalysis.Theanalyticalresultswillbeof
2
little value unless the sample represents the average composi-
2.1 ASTM Standards:
tion of the material from which it was prepared.
E88 Practice for Sampling Nonferrous Metals and Alloys
in Cast Form for Determination of Chemical Composition
6. Apparatus
E135 Terminology Relating to Analytical Chemistry for
6.1 Bucket, plastic sack-lined.
Metals, Ores, and Related Materials
6.2 Cards, sampling information.
3. Terminology 6.3 Center Punch-Spring Steel.
6.4 Chalk, blackboard type.
3.1 For definitions of terms used in this practice, refer to
6.5 Cutter Mill or Hance Grinder.
Terminology E135.
3
6.6 Drill Bit, approximately ⁄4-in. diameter and a length
3.2
sufficient to penetrate the blister copper form completely.
3.3 lot, n—as used in this practice, the unit to be sampled,
6.7 Drill Press, commercial type, 610 rpm.
in pounds or pieces.
6.8 Electromagnet, hand-held or other permanent magnet.
4. Summary of Practice 6.9 Hammer, blacksmith type.
6.10 Pan, square metal or plastic, approximately 10 310
4.1 Each selected copper piece is drilled by means of a
3 in.
commercial drill press using a ⁄4-in. carbide-tipped, or tool
6.11 Paper, Kraft.
steel drill bit. The speed of sampling shall be so regulated that
6.12 Pulp Sample Sacks.
excessive heating, and consequent oxidation, is avoided.
6.13 Riffle, Jones Type, or other of similar design.
Carbide-tipped tools are recommended. Drill cuttings are
6.14 Rotap Machine, or similar sieve shaking device.
6.15 Template, drilling sequence, Fig. 1, Note 1.
1
This practice is under the jurisdiction ofASTM Committee E01 onAnalytical
6.16 Tyler Screen, 20 mesh, 12 in.
Chemistry for Metals, Ores and Related Materials and is the direct responsibility of
6.17 Tyler Screen, 60 mesh, 12 in.
Subcommittee E01.05 on Cu, Pb, Zn, Cd, Sn, Be, theirAlloys and Related Metals.
6.18 V-blender, or similar style mixer.
Current edition approved Nov. 1, 2007. Published November 2007. Originally
approved in 1996. Last previous edition approved in 2007 as E1833–07. 6.19 Vacuum Cleaner, commercial quality.
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
7. Procedure
Standards volume information, refer to the standard’s Document Summary page on
7.1 Sampling:
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E1833–07a
7.2 Sample Preparation:
7.2.1 Adjust the cutter mill to coarse grind. Slowly pour the
grosssampleintothecuttermilltoreducelargeconglomerates
ofsample.PlacethegrosssampleintotheV-blenderandblend
for 15 min. Riffle the sample to split the gross sample into two
equal representative fractions,Aand B. Place theAincrement
intostorageandlabel,“bulkreserve”sample.Continuetoriffle
the B fraction until approximately 4000 g of sample have been
obtained. Place all surplus increment splits from the B fraction
NOTE 1—Template should have external measurements that would
into the A increment bulk storage container.
1
exactly fit
...

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