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ASTM

ASTM D3722-05(2019)

(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.  
1.2 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
30-Apr-2019
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 D3722-05(2011) - Standard Specification for Natural Red and Brown Iron Oxide Pigments
Effective Date
01-May-2019
Refers
ASTM D1208-96(2019) - Standard Test Methods for Common Properties of Certain Pigments
Effective Date
01-Jun-2019
Refers
ASTM D280-01(2012) - Standard Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
Effective Date
01-Nov-2012
Refers
ASTM D1208-96(2012) - Standard Test Methods for Common Properties of Certain Pigments
Effective Date
01-Nov-2012
Refers
ASTM D50-90(2011) - Standard Test Methods for Chemical Analysis of Yellow, Orange, Red, and Brown Pigments Containing Iron and Manganese
Effective Date
01-Jun-2011
Refers
ASTM D185-07 - Standard Test Methods for Coarse Particles in Pigments
Effective Date
01-Jul-2007
Refers
ASTM D1208-96(2007) - Standard Test Methods for Common Properties of Certain Pigments
Effective Date
01-Jun-2007
Refers
ASTM D280-01(2007) - Standard Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
Effective Date
01-Feb-2007
Refers
ASTM D50-90(2005) - Standard Test Methods for Chemical Analysis of Yellow, Orange, Red, and Brown Pigments Containing Iron and Manganese
Effective Date
01-Sep-2005
Refers
ASTM D280-01 - Standard Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
Effective Date
10-May-2001
Refers
ASTM D280-81(1995) - Standard Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
Effective Date
10-May-2001
Refers
ASTM D50-90(1999) - Standard Test Methods for Chemical Analysis of Yellow, Orange, Red, and Brown Pigments Containing Iron and Manganese
Effective Date
10-May-1999
Refers
ASTM D185-84(1999) - Standard Test Methods for Coarse Particles in Pigments, Pastes, and Paints
Effective Date
10-May-1999
Refers
ASTM D1208-96(2002) - Standard Test Methods for Common Properties of Certain Pigments
Effective Date
10-Nov-1996
Refers
ASTM D1208-96 - Standard Test Methods for Common Properties of Certain Pigments
Effective Date
10-Nov-1996

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ASTM D3722-05(2019) - Standard Specification for Natural Red and Brown Iron Oxide PigmentsASTM D3722-05(2019) - Standard Specification for Natural Red and Brown Iron Oxide Pigments
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ASTM D3722-05(2019) - Standard Specification for Natural Red and Brown Iron Oxide Pigments
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D3722 −05 (Reapproved 2019)
Standard Specification for
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
Total iron as Fe O , min, % 40.0
2 3
Moisture and other volatile matter, max, % 1.0
1.1 This specification covers dry and wet ground naturally
Organic coloring matter none
occurring iron oxide, dry and wet ground calcined naturally Total sulfates expressed as SO , max, % 2.0
Matter soluble in water, max, % 2.0
occurring iron oxide, and mixtures of these with synthetic iron
Matter soluble in water, max, % (primer pigments) 1.0
oxides. These pigments are suitable for use in paints, coatings,
Coarse particles (total residue retained on a No. 325 2.0
and many other applications. (45-µm) sieve) max, %
3.2 The mass color and character of the tint and the tinting
1.2 This international standard was developed in accor-
strength formed by a mixture with a white pigment shall be
dance with internationally recognized principles on standard-
within mutually agreed upon limits of a standard acceptable to
ization established in the Decision on Principles for the
both the purchaser and the seller.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4. Sampling
Barriers to Trade (TBT) Committee.
4.1 Two samples shall be taken at random from different
packages from each lot, batch, day’s pack, or other unit of
2. Referenced Documents
production in a shipment. When no markings distinguishing
2.1 ASTM Standards:
between units of production appear samples shall be taken
D50 Test Methods for ChemicalAnalysis ofYellow, Orange,
from different packages in the ratio of two samples for each 5
Red, and Brown Pigments Containing Iron and Manga-
tons (inch-pound or SI), except that for shipments of less than
nese
10 000 lb two samples shall be taken. At the option of the
D185 Test Methods for Coarse Particles in Pigments
purchaser, the samples may be tested separately, or after
D280 Test Methods for Hygroscopic Moisture (and Other
blending in equal quantities the samples from the same
Matter Volatile Under the Test Conditions) in Pigments
production unit to form a composite sample.
D1208 Test Methods for Common Properties of Certain
5. Test Methods
Pigments
5.1 Tests shall b
...

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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  
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Nonvolatile Matter in Vehicle  
23  
Moisture by Distillation  
24  
D1208  
Coarse Particles and Skins  
25  
D185  
Consistency (Stormer)  
26  
D562  
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