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ASTM D85-05(2023)

(Specification)

Standard Specification for Ochre Pigment

Standard Specification for Ochre Pigment

ABSTRACT
This specification covers ferrous earthy pigment included under the general term “ochre.” The pigment shall be a hydrated oxide of iron permeating a siliceous base and shall be free from added impurities and added coloring matter. The following test methods shall be conducted: chemical analysis of dry pigment; coarse particles; mass color and tinting strength; volatile matter; and moisture. The results of these test methods should conform to the pigment requirements.
SCOPE
1.1 This specification covers ferrous earthy pigment included under the general term “ochre.” The pigment may be purchased in the dry form.  
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
31-May-2023
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

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 D387-00(2008) - Standard Test Method for Color and Strength of Chromatic Pigments with a Mechanical Muller
Effective Date
01-Feb-2008
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 D280-81(1995) - Standard Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
Effective Date
10-May-2001
Refers
ASTM 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 D387-00 - Standard Test Method for Color and Strength of Chromatic Pigments with a Mechanical Muller
Effective Date
10-Jun-2000
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 - Standard Test Methods for Common Properties of Certain Pigments
Effective Date
10-Nov-1996

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ASTM D85-05(2023) - Standard Specification for Ochre PigmentASTM D85-05(2023) - Standard Specification for Ochre Pigment
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ASTM D85-05(2023) - Standard Specification for Ochre Pigment
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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: D85 − 05 (Reapproved 2023)
Standard Specification for
Ochre Pigment
This standard is issued under the fixed designation D85; 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
Ferric oxide, min, % 17
Calcium oxide, max, % 5
1.1 This specification covers ferrous earthy pigment in-
Lead chromate none
cluded under the general term “ochre.” The pigment may be Organic coloring matter none
Moisture and other volatile matter, max, % 1.0
purchased in the dry form.
Coarse particles (total residue retained on a No. 325 1.0
(45 μm) sieve), max, %
1.2 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3.2 The mass color and character of the tint and the tinting
ization established in the Decision on Principles for the
strength formed by a mixture with a white pigment shall be
Development of International Standards, Guides and Recom-
within mutually agreed upon limits of a standard acceptable to
mendations issued by the World Trade Organization Technical
both the purchaser and the seller.
Barriers to Trade (TBT) Committee.
4. Sampling
2. Referenced Documents
2 4.1 Two samples shall be taken at random from different
2.1 ASTM Standards:
packages from each lot, batch, day’s pack, or other unit of
D50 Test Methods for Chemical Analysis of Yellow, Orange,
production in a shipment. When no markings distinguishing
Red, and Brown Pigments Containing Iron and Manga-
between units of production appear, samples shall be taken
nese
from different packages in the ratio of two samples for each
D185 Test Methods for Coarse Particles in Pigments
5 tons (inch-pound or SI), except that for shipments of less than
D280 Test Methods for Hygroscopic Moisture (and Other
10 000 lb two samples shall be taken. At the option of the
Matter Volatile Under the Test Conditions) in Pigments
purchaser, the samples may be tested separately or after
D387 Test Method for Color and Strength of Chromatic
blending in equal quantities the samples from the same
Pigments with a Mechanical Muller
production unit to form a composite sample.
D1208 Test Methods for Common Properties of Certain
Pigments
5. Test Methods
3. Composition and Properties
5.1 Tests shall be conducted in accordance with the appro-
3.1 The pigment shall be a hydrated oxide of iron permeat- priate ASTM test methods. Test proce
...

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