ASTM D1649-01(2006)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D1649 −01(Reapproved2006)
StandardSpecification for
Strontium Chromate Pigment
This standard is issued under the fixed designation D1649; 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
percent
1.1 This specification covers the pigment commercially
Strontium as SrO, min 48
known as strontium chromate which is suitable for use in the Chromium as CrO ,min 47
Chloride as Cl, max 0.1
manufacture of protective or decorative coatings.
Sulfate as SO , max 0.2
Water content, max 0.2
1.2 The values stated in SI units are to be regarded as the
Coarse particles (total residue retained on No. 1.0
standard. The values given in parentheses are for information
325 (45-µm) sieve), max
only.
3.2 The mass color and character of the tint and tinting
strength formed by a mixture with a white pigment shall be
2. Referenced Documents
within mutually agreed upon limits of a standard acceptable to
2.1 ASTM Standards:
both the purchaser and the seller when tested in accordance
D387 Test Method for Color and Strength of Chromatic
with Test Method D387.
Pigments with a Mechanical Muller
D1208 Test Methods for Common Properties of Certain
4. Sampling
Pigments
D1845 Test Methods for Chemical Analysis of Strontium
4.1 Two samples shall be taken at random from different
Chromate Pigment
packages from each lot, batch, day’s pack, or other unit of
production in a shipment. When no markings distinguishing
3. Composition and Properties
between units of production appear, samples shall be taken
3.1 Dry Pigment—The pigment shall be commercially pure from different packages in the ratio of two samples for each
strontium chromate-free of extenders and organic material, 4540 kg or 10 000 lb, except that for shipments of less than
except for materials introduced to improve those properties for
10 000 lb, two samples shall be taken. At the option of the
which the pigment is used. The pigment shall conform to the purchaser, the samples may be tested separately or after
following requirements:
blending in equal quantities the samples from the same
production unit to form a composite sample.
This specification is under the jurisdiction of ASTM Committee D01 on Paint
5. Test Methods
and Related Coatings, Mater
...