ASTM C1075-10
(Practice)Standard Practices for Sampling Uranium-Ore Concentrate
Standard Practices for Sampling Uranium-Ore Concentrate
ABSTRACT
These practices are intended to provide the nuclear industry with procedures for obtaining representative bulk samples from uranium-ore concentrates (UOC) and for obtaining a series of representative secondary samples from the original bulk sample for the determination of moisture and other test purposes, and for the preparation of pulverized analytical samples. These practices consist of a number of alternative procedures for (1) primary sampling such as one-stage falling stream, two-stage falling stream, and Auger sampling; (2) secondary sampling such as straight-path (reciprocating) cutter sampling and rotating (Vezin) cutter multi-sampling; (3) sample preparation such as concurrent-drying, natural moisture, and calcination; and (4) sample packaging such as wax sealing and vacuum sealing. These procedures do not include requirements for health, safety, and accountability. The material and sampling equipment requirements are detailed. Schematic diagrams of the primary and secondary samplers are provided.
SCOPE
1.1 These practices are intended to provide the nuclear industry with procedures for obtaining representative bulk samples from uranium-ore concentrates (UOC) (see Specification C967).
1.2 These practices also provide for obtaining a series of representative secondary samples from the original bulk sample for the determination of moisture and other test purposes, and for the preparation of pulverized analytical samples (see Test Methods C1022).
1.3 These practices consist of a number of alternative procedures for sampling and sample preparation which have been shown to be satisfactory through long experience in the nuclear industry. These procedures are described in the following order.
Stage ProcedureSection Primary SamplingOne-stage falling stream4 Two-stage falling stream5 Auger6 Secondary SamplingStraight-path (reciprocating)7 Rotating (Vezin)8, 9 Sample Preparation10 Concurrent-drying11-13 Natural moisture14-16 Calcination17, 18 Sample Packaging19 Wax sealing20 Vacuum sealing21
1.3.1 The primary and secondary sampling stages can be organized in the following way:
1.3.2 It is possible to combine the various elements of these stages in different ways to give satisfactory results depending on the agreed requirements of the contracting parties. For a given stage, however, each procedure must be regarded as a whole. It is highly inadvisable to mix elements belonging to different procedures.
1.4 These procedures do not include requirements for health, safety, and accountability. The observance of these practices does not relieve the user of the obligation to be aware of and to conform to all applicable international, federal, state, and local regulations pertaining to processing, shipping, or using uranium-ore concentrates. (Guidance is provided in CFR 10, Chapter 1.)
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 This standard does not purport to address all of the safety problems, 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: C1075 − 10
Standard Practices for
1
Sampling Uranium-Ore Concentrate
This standard is issued under the fixed designation C1075; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 1.3.2 It is possible to combine the various elements of these
stages in different ways to give satisfactory results depending
1.1 These practices are intended to provide the nuclear
on the agreed requirements of the contracting parties. For a
industry with procedures for obtaining representative bulk
given stage, however, each procedure must be regarded as a
samples from uranium-ore concentrates (UOC) (see Specifica-
whole. It is highly inadvisable to mix elements belonging to
tion C967).
different procedures.
1.2 These practices also provide for obtaining a series of
1.4 These procedures do not include requirements for
representative secondary samples from the original bulk
health, safety, and accountability. The observance of these
sample for the determination of moisture and other test
practicesdoesnotrelievetheuseroftheobligationtobeaware
purposes, and for the preparation of pulverized analytical
of and to conform to all applicable international, federal, state,
samples (see Test Methods C1022).
and local regulations pertaining to processing, shipping, or
usinguranium-oreconcentrates.(GuidanceisprovidedinCFR
1.3 These practices consist of a number of alternative
procedures for sampling and sample preparation which have 10, Chapter 1.)
been shown to be satisfactory through long experience in the
1.5 The values stated in SI units are to be regarded as the
nuclearindustry.Theseproceduresaredescribedinthefollow-
standard. The values given in parentheses are for information
ing order.
only.
Stage Procedure Section
1.6 This standard does not purport to address all of the
safety problems, if any, associated with its use. It is the
Primary Sampling One-stage falling stream 4
Two-stage falling stream 5
responsibility of the user of this standard to establish appro-
Auger 6
priate safety and health practices and determine the applica-
Secondary Sampling Straight-path (reciprocating) 7
Rotating (Vezin) 8, 9 bility of regulatory limitations prior to use.
Sample Preparation 10
Concurrent-drying 11–13
2. Referenced Documents
Natural moisture 14–16
2
Calcination 17, 18 2.1 ASTM Standards:
Sample Packaging 19
C967Specification for Uranium Ore Concentrate
Wax sealing 20
C1022Test Methods for Chemical and Atomic Absorption
Vacuum sealing 21
Analysis of Uranium-Ore Concentrate
1.3.1 The primary and secondary sampling stages can be
2.2 Other Document:
organized in the following way:
CFR 10Nuclear Materials Licensing Code of Federal
3
Regulations, Chapter 1
3. General Requirements
3.1 Material Requirements:
3.1.1 The uranium-ore concentrates shall be free-flowing
and of a particle size not to exceed 6 mm (0.25 in.) or such
other limit agreed upon between contracting parties.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
ThesepracticesareunderthejurisdictionofASTMCommitteeC26onNuclear contact ASTM Customer Sevice at service@astm.org. For Annual Book of ASTM
Fuel Cycle and are the direct responsibility of Subcommittee C26.02 on Fuel and Standardsvolume information, refer to the standard’s Document Summary page on
Fertile Material Specifications. the ASTM website.
3
Current edition approved Jan. 1, 2010. Published February 2010. Originally AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
approved in 1986. Last previous edition approved in 2004 as C1075–93(2004). 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
DOI: 10.1520/C1075-10. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1075 − 10
3.1.2 The average moisture content shall not exceed 5.0% weigh scale shall be calibrated and adjusted if required, at the
weight of the uranium-ore concentrates. beginning, middle, and end of each lot weighed. Test weights
3.1.3 The material shall be shipped to the sampling plant in shall be certified by a statutory authority and shall be traceable
200-L (55-gal) standard steel drums that are fitted with steel to national or state standards.
lids and equipped with suitable gasket, sealing rings, and 3.2.3 All sampling containers shall be clean and dry before
sealing bungs (if applicable) to ensure weatherproofing. The usage.
drums shall be constructed so that the top of the drum is fully
4. Primary Sampling, Falling Stream—1 % In One
...
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:C1075–93 (Reapproved 2004) Designation:C1075–10
Standard Practices for
1
Sampling Uranium-Ore Concentrate
This standard is issued under the fixed designation C1075; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 Thesepracticesareintendedtoprovidethenuclearindustrywithproceduresforobtainingrepresentativebulksamplesfrom
uranium-ore concentrates (UOC) (see Specification C967).
1.2 These practices also provide for obtaeining a series of representative secondary samples from the original bulk sample for
the determination of moisture and other test purposes, and for the preparation of pulverized analytical samples (see Test Methods
C1022).
1.3 These practices consist of a number of alternative procedures for sampling and sample preparation which have been shown
to be satisfactory through long experience in the nuclear industry. These procedures are described in the following order.
Stage Procedure Section
Primary Sampling One-stage falling stream 4
Two-stage falling stream 5
Auger 6
Secondary Sampling Straight-path (reciprocating) 7
Rotating (Vezin) 8, 9
Sample Preparation 10
Concurrent-drying 11-13
Natural moisture 14-16
Calcination 17, 18
Sample Packaging 19
Wax sealing 20
Vacuum sealing 21
1.3.1 The primary and secondary sampling stages can be organized in the following way:
1.3.2 It is possible to combine the various elements of these stages in different ways to give satisfactory results depending on
the agreed requirements of the contracting parties. For a given stage, however, each procedure must be regarded as a whole. It is
highly inadvisable to mix elements belonging to different procedures.
1.4 These procedures do not include requirements for health, safety, and accountability.The observance of these practices does
not relieve the user of the obligation to be aware of and to conform to all applicable international, federal, state, and local
regulations pertaining to processing, shipping, or using uranium-ore concentrates. (Guidance is provided in CFR, 10, Chapter 1.)
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 This standard does not purport to address all of the safety problems, 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
These practices are under the jurisdiction ofASTM Committee C26 on Nuclear Fuel Cycle and are the direct responsibility of Subcommittee C26.02 on Fuel and Fertile
Material Specifications.
Current edition approved April 15, 1993. Published June 1993. Originally published as C1075–86. Last previous edition C1075–86. DOI: 10.1520/C1075-93R04.
Current edition approved Jan. 1, 2010. Published February 2010. Originally approved in 1986. Last previous edition approved in 2004 as C1075–93(2004). DOI:
10.1520/C1075-10.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
C1075–10
2. Referenced Documents
2
2.1 ASTM Standards:
C967 Specification for Uranium Ore Concentrate
C1022 Test Methods for Chemical and Atomic Absorption Analysis of Uranium-Ore Concentrate
2.2 Other Document:
3
CFR 10 Nuclear Materials Licensing Code of Federal Regulations, Chapter 1
3. General Requirements
3.1 Material Requirements:
3.1.1 Theuranium-oreconcentratesshallbefree-flowingandofaparticlesizenottoexceed6mm(0.25in.)orsuchotherlimit
agreed upon between contracting parties.
3.1.2 The average moisture content shall not exceed 5.0% weight of the uranium-ore concentrates.
3.1.3 The material shall be shipped to the sampling plant in 200-L (55-gal) standard steel drums that are fitted with steel lids
andequippedwithsuitablegasket,sealingrings,andsealingringsbungs(ifapplicable)toensureweatherproofing.Thedrumsshall
be constructed so that the top of the drum is fully open when the lid is removed.
3.1.4 Thenumberofdrumsinasamplinglotshallnotexceed90andthegrossweightshallnotexceed45metrictons(100000
lb).
3.1.5 A minimum number of drums in a sampling lot may be established depending upon the sampling procedure used.
3.2 Sampling Equipment Requirements:
3.2.
...
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