ASTM D3722-82(1999)

Standard Specification for Natural Red and Brown Iron Oxide Pigments

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 or coatings.

General Information

• Status: Historical
• Publication Date: 09-May-1999
• ICS: 87.060.10 - Pigments and extenders
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.31 - Pigment Specifications

Relations

• Replaced By: ASTM D3722-05 - Standard Specification for Natural Red and Brown Iron Oxide Pigments
• Effective Date: 01-Sep-2005

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D 3722 – 82 (Reapproved 1999)
Standard Specification for
Natural Red and Brown Iron Oxide Pigments
This standard is issued under the fixed designation D 3722; 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
Coarse particles (total residue retained on a No. 325 2.0
(45-µm) sieve) max, %
1.1 This specification covers dry and wet ground naturally
3.2 Inasmuchasironoxidepigmentsareavailableinarange
occurring iron oxide, dry and wet ground calcined naturally
occurring iron oxide, and mixtures of these with synthetic iron of colors, the mass color and, if desired by the purchaser, the
character of the tint and the tinting strength shall be within
oxides. These pigments are suitable for use in paints or
coatings. mutually agreed upon limits of a reference sample acceptable
to both the seller and the purchaser when tested in accordance
2. Referenced Documents
with Test Method D 387.
2.1 ASTM Standards:
4. Sampling
D 50 Test Methods for Chemical Analysis of Yellow, Or-
ange, Red, and Brown Pigments Containing Iron and 4.1 Two samples shall be taken at random from different
packages from each lot, batch, day’s pack, or other unit of
Manganese
D 185 Test Methods for Coarse Particles in Pigments, production in a shipment. When no markings distinguishing
between units of production appear samples shall be taken
Pastes, and Paints
from different packages in the ratio of two samples for each 5
D 280 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
D 387 Test Method for Color and Strength of Color Pig-
purchaser, the samples may be tested separately, or after
ments with a Mechanical Muller
blending in equal quantities the samples from the same
D 1208 Test Methods for Common Properties of Certain
production unit to form a composite sample.
Pigments
5. Test Methods
3. Co
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