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ASTM D765-87(2020)

(Specification)

Standard Specification for Raw and Burnt Sienna Pigments

Standard Specification for Raw and Burnt Sienna Pigments

ABSTRACT
This specification establishes the properties and requirements for the pigments commercially known as raw sienna and burnt sienna in the dry and paste in oil forms. The dry pigments shall be sampled and tested as appropriate, and conform accordingly to composition requirements as to iron oxide, calcium compounds, moisture and other volatile matter, coarse particles (total residue retained on a No. 325 sieve), and organic colors. The pigments in paste in oil form shall conversely be tested and conform to composition requirements as to pigment, nonvolatile vehicle, moisture by distillation, and coarse particles (total residue retained on a No. 325 sieve). Both forms shall adhere to specified mass color, tint character, and tinting strength requirements as well.
SCOPE
1.1 This specification covers the pigments commercially known as raw sienna and burnt sienna.  
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-2020
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 D765-87(2014) - Standard Specification for Raw and Burnt Sienna Pigments
Effective Date
01-Jun-2020
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 D185-84(1999) - Standard Test Methods for Coarse Particles in Pigments, Pastes, and Paints
Effective Date
10-May-1999
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

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ASTM D765-87(2020) - Standard Specification for Raw and Burnt Sienna PigmentsASTM D765-87(2020) - Standard Specification for Raw and Burnt Sienna Pigments
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ASTM D765-87(2020) - Standard Specification for Raw and Burnt Sienna Pigments
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Standards Content (Sample)


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:D765 −87 (Reapproved 2020)
Standard Specification for
Raw and Burnt Sienna Pigments
This standard is issued under the fixed designation D765; 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 3.2 PasteinOil—Forbothrawandburntsienna,thepastein
oil shall be made by thoroughly grinding the pigment with
1.1 This specification covers the pigments commercially
linseed oil (with or without a small amount of volatile thinner)
known as raw sienna and burnt sienna.
together with (where necessary) small amounts of wetting or
1.2 This international standard was developed in accor-
dispersing agents to produce a paste or semipaste of satisfac-
dance with internationally recognized principles on standard-
tory consistency. As received, it shall not be caked in the
ization established in the Decision on Principles for the
container and shall break up readily in linseed oil to form a
Development of International Standards, Guides and Recom-
smooth paint of brushing consistency. It shall mix readily in all
mendations issued by the World Trade Organization Technical
proportions, without curdling, with linseed oil, turpentine, or
Barriers to Trade (TBT) Committee.
volatile petroleum spirits, or any mixture of these substances.
The paste shall conform to the following requirements:
2. Referenced Documents
Pigment, min, % 60
2.1 ASTM Standards:
Nonvolatile vehicle, min, of vehicle 80
Moisture by distillation, max, % 2.0
D50 Test Methods for ChemicalAnalysis ofYellow, Orange,
Coarse particles and skins (total residue retained on a No. 325 (45-µm) 1.0
Red, and Brown Pigments Containing Iron and Manga-
sieve), max, % of dry pigment
nese
3.3 The mass color and character of the tint and the tinting
D185 Test Methods for Coarse Particles in Pigments
strength formed by a mixture with a white pigment shall be
D280 Test Methods for Hygroscopic Moisture (and Other
within mutually agreed upon limits of a standard acceptable to
Matter Volatile Under the Test Conditions) in Pigments
both the purchaser and the seller.
D387 Test Method for Color and Strength of Chromatic
Pigments with a Mechanical Muller
4. Sampling
D1208 Test Methods for Common Properties of Certain
Pigments
4.1 Two samples shall be taken at random from different
packages from each lot, batch, day’s pack, or other unit of
3. Composition and Properties
production in a shipment. When no markings distinguishing
3.1 Dry Pigments—The pigments shall conform to the
between units of production appear, samples shall be taken
following requirements:
from different packages in the ratio of two samples for each 5
3.1.1 Raw Sienna—The pigment shall be in a soft, dry form
tons (inch-pound or SI), except that for shipments of less than
and shall be a hydrated oxide of iron permeating a siliceous
10 000 lb two samples shall be taken. At the option of the
base. The pigment shall conform to the requirements for
purchaser, the samples may be tested separately or after
composition prescribed in Table 1.
blending in equal quantities the samples from the same
3.
...

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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.  
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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)  
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Sulfates Soluble in Hydrochloric Acid  
15 and 16  
Lead Chromate (in Ochers)  
17  
Calcium Carbonate (in Venetian Red)  
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C25  
Manganese (in Siennas and Umbers)  
19 and 20  
Pigment Pastes in Oil  
Pigment Content  
21  
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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