ASTM D769-01(2012)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D769 −01 (Reapproved 2012)
Standard Specification for
Black Synthetic Iron Oxide
This standard is issued under the fixed designation D769; 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 3.2 The mass color and character of the tint and the tinting
strength formed by a mixture with a white pigment shall be
1.1 This specification covers the pigment commercially
within mutually agreed upon limits of a standard acceptable to
known as black synthetic iron oxide.
both the purchaser and the seller.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
4. Sampling
only.
4.1 Two samples shall be taken at random from different
2. Referenced Documents
packages from each lot, batch, day’s pack, or other unit of
2.1 ASTM Standards:
production in a shipment. When no markings distinguishing
D50 Test Methods for ChemicalAnalysis ofYellow, Orange,
between units of production appear, samples shall be taken
Red, and Brown Pigments Containing Iron and Manga-
from different packages in the ratio of two samples for each
nese
4540 kg or 10 000 lb, except that for shipments of less than 10
D185 Test Methods for Coarse Particles in Pigments
000 lb, two samples shall be taken. At the option of the
D280 Test Methods for Hygroscopic Moisture (and Other
purchaser, the samples may be tested separately or after
Matter Volatile Under the Test Conditions) in Pigments
blending in equal quantities the samples from the same
D387 Test Method for Color and Strength of Chromatic
production unit to form a composite sample.
Pigments with a Mechanical Muller
D1208 Test Methods for Common Properties of Certain
5. Test Methods
Pigments
D3872 Test Method for Ferrous Iron in Iron Oxides
5.1 Tests shall be conducted in accordance with the appro-
priate test methods. Test procedures not covered byASTM test
3. Composition and Properties
methods shall be mutually agreed upon between the purchaser
3.1 The pigment shall be a manufactured ferrous-ferric
and the seller.
oxideobtainedbychemicalreaction.Itshallbeasoftdryfinely
5.1.1 Total Iron Oxides—Test Methods D50.
powdered pigment, free of admixtures of other substances and
5.1.2 Ferrous Iron in Iron Oxides—Test Method D3872.
shall conform to the following requirements:
5.1.3 Water Soluble Matter, Maximum, Percent—Test Meth-
Total ferrous and ferric oxide, min % 93
Ferrous oxide (FeO), min, % 20
ods D1208.
Water-soluble matter, max, % 0.5
5.1.4 Moisture and Other Volatile Matter, Maximum
...