ASTM-C322 › Standard Practice for Sampling Ceramic Whiteware Clays
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This practice covers procedures for sampling bulk and bagged ceramic whiteware clays. For bulk shipment consisting lumps, samples shall be taken from different parts of the rail car or truck during unloading. Sampling of hopper car or hopper truck shipments is to be done during unloading of the car or truck. For bulk shipment consisting shredded or coarsely ground clay, samples may be taken with a shovel, or with a grain sampler. For bagged lots of ground or air-floated clay, samples may be taken by a grain-sampler or similar sampling instrument. For a clay shipped in slurry form, a sample may be obtained by taking a single grab sample from any portion of the shipment except by skimming the top surface.
Scope
1.1 This practice covers procedures for sampling bulk and bagged shipments of ceramic whiteware clays.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
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 and health 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
2.1 Since many tests are performed using very small amounts of powder, it is most important that the test portions be obtained in a standardized manner. The practices described here take into account the possibility of segregation and variability of the ceramic powder in containers of the various sizes and numbers, both in dry and slurry forms.
Keywords
clay; sampling;
To find similar documents by ASTM Volume:
15.02 (Glass; Ceramic Whitewares)
To find similar documents by classification:
91.100.25 (Terracotta building products Including roofing tiles, bricks, etc.)
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Document Number
ASTM-C322-09(2018)
Revision Level
2009 R18 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
Oct. 1, 2018
Document Type
Practice
Page Count
2 pages
Committee Number
C21.04