ASTM C322-09(2018)
(Practice)Standard Practice for Sampling Ceramic Whiteware Clays
Standard Practice for Sampling Ceramic Whiteware Clays
ABSTRACT
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.
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.
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.
General Information
Standards Content (Sample)
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.
Designation: C322 − 09 (Reapproved 2018)
Standard Practice for
Sampling Ceramic Whiteware Clays
This standard is issued under the fixed designation C322; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* loading or unloading, at spaced intervals. The lumps shall then
be broken to pieces no larger than 4 in. (102 mm), in the largest
1.1 This practice covers procedures for sampling bulk and
dimension, and the several samples shall be made into a
bagged shipments of ceramic whiteware clays.
composite lot, by turning with a shovel on a clean floor. The
1.2 The values stated in inch-pound units are to be regarded
composite shall then be quartered or riffled to provide a 10-lb
as standard. The values given in parentheses are mathematical
laboratory sample.
conversions to SI units that are provided for information only
3.2 Sampling of hopper car or hopper truck shipments is to
and are not considered standard.
be done during unloading of the car or truck.
1.3 This standard does not purport to address all of the
3.3 Where a bulk shipment consists of shredded or coarsely
safety concerns, if any, associated with its use. It is the
ground clay, sampling shall be done at 20 points for a 30-ton
responsibility of the user of this standard to establish appro-
(27-Mg) unit; the samples may be taken with a shovel, or with
priate safety, health, and environmental practices and deter-
a grain sampler, if the form of the clay permits. The samples so
mine the applicability of regulatory limitations prior to use.
taken shall then be mixed thoroughly, and quartered or riffled
1.4 This international standard was developed in accor-
to form a 10-lb (4.5–kg) (or proportionately larger) laboratory
dance with internationally recognized principles on standard-
sample.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
3.4 For bagged lots of ground or air-floated clay, the number
mendations issued by the World Trade Organization Technical
of samples taken shall depend on the number of units in a
Barriers to Trade (TBT) Committee.
shipment. A grain-sampler or similar sampling instrument shall
be used to take samples which then shall be combined, mixed,
2. Significance and Use
and quartered or riffled to obtain a 10-lb (4.5-kg) laboratory
2.1 Since many tests are performed using very small
sample. Where a shipment consists of 100 bags or less, the
amounts of powder, it is most important that the test portions
number of bags sampled at random shall be not less than 5 and
be obtained in a standardized manner. The practices described
preferably 10. When the number of bags is greater than 100 but
here take into account the possibility of segregation and
less than 500, the number of bags sampled shall not be less
variability of the ceramic powder in containers of the various
than 15. For lots of from 500 to 1000 bags, 20 bags shall be
sizes and numbers, both in dry and slurry forms.
sampled. For shipments of 1000 to 2000 bags, 30 bags shall be
sampled at random.
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