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ASTM D763-01

(Specification)

Standard Specification for Raw and Burnt Umber Pigments

Standard Specification for Raw and Burnt Umber Pigments

SCOPE
1.1 This specification covers the pigments commercially known as raw umber and burnt umber.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

General Information

Status
Historical
Publication Date
31-Dec-2000
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 D763-81(1995) - Standard Specification for Raw and Burnt Umber Pigments
Effective Date
01-Jan-2001
Replaced By
ASTM D763-06 - Standard Specification for Raw and Burnt Umber Pigments
Effective Date
01-Nov-2006
Referred By
ASTM F2207-06(2023) - Standard Specification for Cured-in-Place Pipe Lining System for Rehabilitation of Metallic Gas Pipe
Effective Date
01-Jan-2001

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ASTM D763-01 - Standard Specification for Raw and Burnt Umber PigmentsASTM D763-01 - Standard Specification for Raw and Burnt Umber Pigments
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ASTM D763-01 - Standard Specification for Raw and Burnt Umber Pigments
English language
2 pages
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 763 – 01
Standard Specification for
1
Raw and Burnt Umber Pigments
This standard is issued under the fixed designation D 763; 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.
TABLE 1 Requirements for Composition of Raw and Burnt
1. Scope
Umber
1.1 This specification covers the pigments commercially
Raw Burnt
known as raw umber and burnt umber.
Umber Umber
1.2 The values stated in SI units are to be regarded as the
Iron oxide (Fe O ), min, % 37 42
2 3
standard. The values given in parentheses are for information
Calcium compounds (as CaO), max, % 5.0 5.0
only. Moisture and other volatile matter, max, % 5.0 5.0
Coarse particles (total residue retained on a No. 325 2.0 2.0
(45-µm) sieve), max, %
2. Referenced Documents
Organic colors, max, % none none
2.1 ASTM Standards:
D 50 Test Methods for Chemical Analysis of Yellow, Or-
ange, Red, and Brown Pigments Containing Iron and
2
3.2 Paste in Oil—For both raw and burnt umber, the paste
Manganese
D 185 Test Methods for Coarse Particles in Pigments, in oil shall be made by thoroughly grinding the pigment with
2
linseed oil (with or without a small amount of volatile thinner)
Pastes, and Paints
D 280 Test Methods for Hygroscopic Moisture (and Other together with (where necessary) small amounts of wetting or
2
dispersing agents to produce a paste or semipaste of satisfac-
Matter Volatile Under the Test Conditions) in Pigments
D 387 Test Method for Color and Strength of Color Pig- tory consistency. As received, it shall not be caked in the
3
container and shall break up readily in linseed oil to form a
ments with a Mechanical Muller
D 1208 Test Methods for Common Properties of Certain smooth paint of brushing consistency. It shall mix readily in all
2
proportions, without curdling, with linseed oil, turpentine, or
Pigments
volatile petroleum spirits, or any mixture of these substances.
3. Composition and Properties
The paste shall conform to the following requirements:
3.1 Dry Pigments—The pigments shall conform to the Pigment, min, % 55
Nonvolatile vehicle, min, % 80
following requirements:
Moisture by distillation, max, % 2.0
3.1.1 RawUmber—The pigment shall be in a soft, dry form
Coarse particles and skins (total residue retained on a 1.0
and shall be a hydrated oxide of iron (together with such
No. 325 (45-µm sieve), max, % of dry pigment
manganese that is naturally associated with it) permeating a
3.3 The mass color and character of the tint and the tinting
siliceous base and shall be free of admixtures of other
strength formed by a mixture with a white pigment shall be
substancesexceptcarbonpigments.Thepigmentshallconform
within mutually agreed upon limits of a standard acceptable to
to the requirements for composition prescribed in Table 1.
both the purchaser and the seller.
3.1.2 Burnt Umber—The pigment shall be produced by the
calcination of raw umber and shall be free of admixtures of
4. Samplin
...

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