ASTM D602-81(2019)
(Specification)Standard Specification for Barium Sulfate Pigments
Standard Specification for Barium Sulfate Pigments
ABSTRACT
This specification covers the barium sulfate pigments commercially known as barytes and blanc fixe. The pigment shall consist of barium sulfate (BaSO4) without any admixture of other materials in the case of blanc fixe, and without any admixture of other materials not naturally occurring in the barite ore in the case of barytes. The pigments shall be subjected to the following tests: coarse particle test, moisture test, barium sulfate test, ferric oxide test, free silica test, hydrogen ion concentration, and matter water solubility test.
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.
1.3 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
Relations
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: D602 −81 (Reapproved 2019)
Standard Specification for
Barium Sulfate Pigments
This standard is issued under the fixed designation D602; 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
Blanc
Barytes Fixe
1.1 This specification covers the barium sulfate pigments
commercially known as barytes and blanc fixe. Barium sulfate, min, % 94 97
Ferric oxide, max, % 0.05 0.02
1.2 The values stated in SI units are to be regarded as the
pH, min 3.5 3.5
Matter soluble in water, max, % 0.2 0.2
standard. The values given in parentheses are for information
Moisture and other volatile matter, max, % 0.5 0.5
only.
Coarse particles (total residue retained on 0.5 0.5
No. 325 (45-µm sieve), max, %
1.3 This international standard was developed in accor-
Free silica (quartz, clays, or other foreign 2.0 2.0
dance with internationally recognized principles on standard-
materials), max, %
ization established in the Decision on Principles for the
3.2 In such physical properties as are specified by the
Development of International Standards, Guides and Recom-
purchaser, the pigment shall satisfactorily match a reference
mendations issued by the World Trade Organization Technical
sample mutually agreed upon by the purchaser and the seller.
Barriers to Trade (TBT) Committee.
4. Sampling
2. Referenced Documents
4.1 Two samples shall be taken at random from different
packages from each lot, batch, day’s pack, or other unit of
2.1 ASTM Standards:
production in a shipment. When no markings distinguishing
D185 Test Methods for Coarse Particles in Pigments
between units of production appear, samples shall be taken
D280 Test Methods for Hygroscopic Moisture (and Other
from different packages in the ratio of two samples of each
Matter Volatile Under the Test Conditions) in Pigments
5000 kg (10 000 lb), except that for shipments of less than 10
D715 Test Methods for Analysis of Barium Sulfate Pigment
000 lb two samples shall be taken. At the option of the
D1208 Test Methods for Common Properties of Certain
purchaser, the samples may be tested separately or after
Pigments
blending in equal quantities the samples from the same
production unit to form a composite sample.
3. Composition and Properties
3.1 The pigment shall consist of barium sulfate (BaSO )
5. Test Methods
without any admixture of other materials in the case of blanc
5.1 Tests shall be conducted in accordance wit
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