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ASTM

ASTM D3722-82(1999)

(Specification)

Standard Specification for Natural Red and Brown Iron Oxide Pigments

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
Current Stage
Ref Project

Relations

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

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ASTM D3722-82(1999) - Standard Specification for Natural Red and Brown Iron Oxide PigmentsASTM D3722-82(1999) - Standard Specification for Natural Red and Brown Iron Oxide Pigments
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ASTM D3722-82(1999) - Standard Specification for Natural Red and Brown Iron Oxide Pigments
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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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1.1 These test methods cover procedures for the chemical analysis of yellow, orange, red, and brown pigments containing iron and manganese. The test methods apply specifically to the following pigments: synthetic hydrated yellow iron oxide, yellow ocher, red and brown iron oxides, raw and burnt umber, raw and burnt sienna, and venetian red.  
1.2 The analytical procedures appear in the following order:    
ASTM  
Method  
Refer-  
Dry Pigments
Sections  
ences  
Moisture and Other Volatile Matter  
6  
D280  
Loss on Ignition  
7  
Coarse Particles  
8  
D185  
Matter Soluble in Water  
9  
D1208  
Organic Coloring Matter  
10  
Iron Oxide  
11 and 12  
Calcium Compounds (Reported as CaO)  
13 and 14  
Sulfates Soluble in Hydrochloric Acid  
15 and 16  
Lead Chromate (in Ochers)  
17  
Calcium Carbonate (in Venetian Red)  
18  
C25  
Manganese (in Siennas and Umbers)  
19 and 20  
Pigment Pastes in Oil  
Pigment Content  
21  
D1208  
Moisture and Other Volatile Matter  
22  
D1208  
Nonvolatile Matter in Vehicle  
23  
Moisture by Distillation  
24  
D1208  
Coarse Particles and Skins  
25  
D185  
Consistency (Stormer)  
26  
D562  
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