Standard Specification for Barium Sulfate Pigments

SCOPE
1.1 This specification covers the barium sulfate pigments commercially known as barytes and blanc fixe.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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30-Sep-2003
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ASTM D602-81(2003) - Standard Specification for Barium Sulfate Pigments
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D 602 – 81 (Reapproved 2003)
Standard Specification for
Barium Sulfate Pigments
This standard is issued under the fixed designation D 602; 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
TABLE Continued
1.1 This specification covers the barium sulfate pigments
Blanc
Barytes Fixe
commercially known as barytes and blanc fixe.
1.2 The values stated in SI units are to be regarded as the
Coarse particles (total residue retained on 0.5 0.5
standard. The values given in parentheses are for information No. 325 (45-µm sieve), max, %
Free silica (quartz, clays, or other foreign 2.0 2.0
only.
materials), max, %
2. Referenced Documents
3.2 In such physical properties as are specified by the
purchaser, the pigment shall satisfactorily match a reference
2.1 ASTM Standards:
sample mutually agreed upon by the purchaser and the seller.
D 185 Test Methods for Coarse Particles in Pigments,
Pastes, and Paints
4. Sampling
D 280 Test Methods for Hygroscopic Moisture (and Other
4.1 Two samples shall be taken at random from different
Matter Volatile Under the Test Conditions) in Pigments
packages from each lot, batch, day’s pack, or other unit of
D 715 Test Methods for Analysis of Barium Sulfate Pig-
production in a shipment. When no markings distinguishing
ment
between units of production appear, samples shall be taken
D 1208 Test Methods for Common Properties of Certain
from different packages in the ratio of two samples of each
Pigments
5000 kg (10 000 lb), except that for shipments of less than 10
3. Composition and Properties
000 lb two samples shall be taken. At the option of the
purchaser, the samples may be tested separately or after
3.1 The pigment shall consist of barium sulfate (BaSO )
blending in equal quantities the samples from the same
without any admixture of other materials in the case of blanc
production unit to form a composite sample.
fixe, and without any admixture of other materials not naturally
occurring in the barite ore in the case of barytes, and which
5. Test Methods
conform to the following requirements:
5.1 Tests shall be conducted in accordance with the follow-
Blanc
ingAST
...

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