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ASTM C1075-93(1997)

Historical Reaffirmation

Standard Practices for Sampling Uranium-Ore Concentrate

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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 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 to 13 Natural moisture 14 to 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:

PRIMARY SAMPLING (sections 4 to 6) ------------------------------------

SDO ASTM: ASTM International
Document Number C1075
Publication Date Dec. 10, 1997
Language en - English
Page Count 9
Revision Level 93(1997)
Supercedes
Committee C26.02
Publish Date Document Id Type View
Nov. 1, 2017 C1075-17 Revision
Jan. 1, 2010 C1075-10 Revision
July 1, 2022 C1075-17R22 Reaffirmation
Dec. 10, 1997 C1075-93R97 Reaffirmation
April 15, 1993 C1075-93R04 Reaffirmation