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ASTM

ASTM D3722-05

(Specification)

Standard Specification for Natural Red and Brown Iron Oxide Pigments

Standard Specification for Natural Red and Brown Iron Oxide Pigments

ABSTRACT
This specification covers red and brown pigments of dry and wet ground natural iron oxide, dry and wet ground calcined natural iron oxide, and mixtures of these with synthetic iron oxides. These pigments are suitable for such applications as paints and coatings. Specimens shall be sampled and suitably undergo chemical analysis for total iron oxide, sulfur as sulfates, organic coloring matter, matter soluble in water, coarse particles in dry pigment, and moisture and other volatile matter. The pigments shall also conform to specified mass color, tint character, and tinting strength as mutually agreed upon between purchaser and seller.
SCOPE
1.1 This specification covers dry and wet ground naturally occurring iron oxide, dry and wet ground calcined naturally occurring iron oxide, and mixtures of these with synthetic iron oxides. These pigments are suitable for use in paints, coatings, and many other applications.

General Information

Status
Historical
Publication Date
31-Aug-2005
ICS
87.060.10 - Pigments and extenders
Technical Committee
D01 - Paint and Related Coatings, Materials, and Applications
Drafting Committee
D01.31 - Pigment Specifications
Current Stage
Ref Project

Relations

Replaces
ASTM D3722-82(1999) - Standard Specification for Natural Red and Brown Iron Oxide Pigments
Effective Date
01-Sep-2005
Replaced By
ASTM D3722-05(2011) - Standard Specification for Natural Red and Brown Iron Oxide Pigments
Effective Date
01-Jun-2011

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ASTM D3722-05 - Standard Specification for Natural Red and Brown Iron Oxide PigmentsASTM D3722-05 - Standard Specification for Natural Red and Brown Iron Oxide Pigments
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ASTM D3722-05 - Standard Specification for Natural Red and Brown Iron Oxide Pigments
English language
2 pages
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D3722 – 05
Standard Specification for
1
Natural Red and Brown Iron Oxide Pigments
This standard is issued under the fixed designation D3722; 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
Matter soluble in water, max, % (primer pigments) 1.0
Coarse particles (total residue retained on a No. 325 2.0
1.1 This specification covers dry and wet ground naturally
(45-µm) sieve) max, %
occurring iron oxide, dry and wet ground calcined naturally
3.2 The mass color and character of the tint and the tinting
occurring iron oxide, and mixtures of these with synthetic iron
strength formed by a mixture with a white pigment shall be
oxides. These pigments are suitable for use in paints, coatings,
within mutually agreed upon limits of a standard acceptable to
and many other applications.
both the purchaser and the seller.
2. Referenced Documents
4. Sampling
2
2.1 ASTM Standards:
4.1 Two samples shall be taken at random from different
D50 Test Methods for Chemical Analysis of Yellow, Or-
packages from each lot, batch, day’s pack, or other unit of
ange, Red, and Brown Pigments Containing Iron and
production in a shipment. When no markings distinguishing
Manganese
between units of production appear samples shall be taken
D185 Test Methods for Coarse Particles in Pigments
from different packages in the ratio of two samples for each 5
D280 Test Methods for Hygroscopic Moisture (and Other
tons (inch-pound or SI), except that for shipments of less than
Matter Volatile Under the Test Conditions) in Pigments
10 000 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 pigments shall conform to the following require-
5. Test Methods
ments:
5.1 Tests shall be conducted in accordance with the appro-
Total iron as Fe O , min, % 40.0
2 3
priate ASTM test methods. Test procedures not covered by
Moisture and other volatile matter, max, % 1.0
Organic coloring matter none
ASTMtestmethodsshallbemutuallyagreeduponbetwe
...

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