ASTM C322-03
(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.
SCOPE
1.1 This practice covers procedures for sampling bulk and bagged shipments of ceramic whiteware clays.
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Standards Content (Sample)
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Designation:C322–03
Standard Practice for
1
Sampling Ceramic Whiteware Clays
This standard is issued under the fixed designation C 322; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 2.4 For bagged lots of ground or air-floated clay, the number
of samples taken shall depend on the number of units in a
1.1 This practice covers procedures for sampling bulk and
shipment.Agrain-sampler or similar sampling instrument shall
bagged shipments of ceramic whiteware clays.
be used to take samples which then shall be combined, mixed,
2. Sampling
and quartered or riffled to obtain a 10-lb (4.5-kg) laboratory
sample. Where a shipment consists of 100 bags or less, the
2.1 Where a bulk shipment consists of lumps, a number of
number of bags sampled at random shall be not less than 5 and
samples shall be taken from different parts of the rail car or
preferably 10.When the number of bags is greater than 100 but
truck during unloading, so that the final sample will represent
less than 500, the number of bags sampled shall not be less
an average of all parts of the shipment from top to bottom. For
than 15. For lots of from 500 to 1000 bags, 20 bags shall be
a 30-ton (27-Mg) unit, no less than 20 samples of approxi-
sampled. For shipments of 1000 to 2000 bags, 30 bags shall be
mately 10 lb (4.5 kg) each shall be taken from different parts of
sampled at random.
the rail car or truck. This may be done by removal during
2.5 When the clay is shipped in slurry form a representative
loading or unloading, at spaced intervals. The lumps shall then
sample may be obtained by taking a single grab sample from
be broken to pieces no larger than 4 in. (102 mm), in the largest
any portion of the shipment except by skimming the top
dimension, and the several samples shall be made into a
surface. If the shipment has been unagitated for a period of two
composite lot, by turning with a shovel on a clean floor. The
weeks or more the shipment can be agitated by inserting an air
composite shall then be quartered or riffled to provide a 10-lb
lance to the bottom of the vessel for a period of ten minutes.
laboratory sample.
One two-liter sample is required.
2.2 Sampling of hopper car or hopper truck shipments is to
2.6 Preshipment samples of slurries and bulk materials from
be
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