ASTM D765-87(2014)
(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.
General Information
Relations
Buy Standard
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D765 −87 (Reapproved 2014)
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 smooth paint of brushing consistency. It shall mix readily in all
proportions, without curdling, with linseed oil, turpentine, or
1.1 This specification covers the pigments commercially
volatile petroleum spirits, or any mixture of these substances.
known as raw sienna and burnt sienna.
The paste shall conform to the following requirements:
2. Referenced Documents
Pigment, min, % 60
Nonvolatile vehicle, min, of vehicle 80
2.1 ASTM Standards:
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
sieve), max, % of dry pigment
Red, and Brown Pigments Containing Iron and Manga-
3.3 The mass color and character of the tint and the tinting
nese
strength formed by a mixture with a white pigment shall be
D185 Test Methods for Coarse Particles in Pigments
within mutually agreed upon limits of a standard acceptable to
D280 Test Methods for Hygroscopic Moisture (and Other
both the purchaser and the seller.
Matter Volatile Under the Test Conditions) in Pigments
D387 Test Method for Color and Strength of Chromatic
4. Sampling
Pigments with a Mechanical Muller
D1208 Test Methods for Common Properties of Certain
4.1 Two samples shall be taken at random from different
Pigments
packages from each lot, batch, day’s pack, or other unit of
production in a shipment. When no markings distinguishing
3. Composition and Properties
between units of production appear, samples shall be taken
3.1 Dry Pigments—The pigments shall conform to the
from different packages in the ratio of two samples for each 5
following requirements:
tons (inch-pound or SI), except that for shipments of less than
3.1.1 Raw Sienna—The pigment shall be in a soft, dry form
10 000 lb two samples shall be taken. At the option of the
and shall be a hydrated oxide of iron permeating a siliceous
purchaser, the samples may be tested separately or after
base. The pigment shall conform to the requirements for
blending in equal quantities the samples from the same
composition prescribed in Table 1.
production unit to form a composite sample.
3.1.2 Burnt Sienna—The pigment shall be produced by the
calcinationofrawsiennaandshallconformtotherequirements
5. Test Methods
for composition prescribed in Table 1.
5.1 Tests shall be conducted in accordance with the appro-
3.2 PasteinOil—Forbothrawandburntsienna,thepastein
priate ASTM test methods. Test procedures not covered by
oil shall be made by thoroughly grinding the pigment with
ASTM test methods shall be mutually agreed upon by the
linseed oil (with or without a small amount of volatile thinner)
purchaser and the seller.
together with (where necessary) small amounts of wetting or
5.1.1 Total Iron Oxide,
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D765 − 87 (Reapproved 2009) D765 − 87 (Reapproved 2014)
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
1.1 This specification covers the pigments commercially known as raw sienna and burnt sienna.
2. Referenced Documents
2.1 ASTM Standards:
D50 Test Methods for Chemical Analysis of Yellow, Orange, Red, and Brown Pigments Containing Iron and Manganese
D185 Test Methods for Coarse Particles in Pigments
D280 Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
D387 Test Method for Color and Strength of Chromatic Pigments with a Mechanical Muller
D1208 Test Methods for Common Properties of Certain Pigments
3. Composition and Properties
3.1 Dry Pigments—The pigments shall conform to the following requirements:
3.1.1 Raw Sienna—The pigment shall be in a soft, dry form and shall be a hydrated oxide of iron permeating a siliceous base.
The pigment shall conform to the requirements for composition prescribed in Table 1.
3.1.2 Burnt Sienna—The pigment shall be produced by the calcination of raw sienna and shall conform to the requirements for
composition prescribed in Table 1.
3.2 Paste in Oil—For both raw and burnt sienna, the paste in oil shall be made by thoroughly grinding the pigment with linseed
oil (with or without a small amount of volatile thinner) together with (where necessary) small amounts of wetting or dispersing
agents to produce a paste or semipaste of satisfactory consistency. As received, it shall not be caked in the container and shall break
up readily in linseed oil to form a smooth paint of brushing consistency. It shall mix readily in all proportions, without curdling,
with linseed oil, turpentine, or volatile petroleum spirits, or any mixture of these substances. The paste shall conform to the
following requirements:
Pigment, min, % 60
Nonvolatile vehicle, min, of vehicle 80
Moisture by distillation, max, % 2.0
Coarse particles and skins (total residue retained on a No. 325 (45-μm) 1.0
sieve), max, % of dry pigment
3.3 The mass color and character of the tint and the tinting strength formed by a mixture with a white pigment shall be within
mutually agreed upon limits of a standard acceptable to both the purchaser and the seller.
4. Sampling
4.1 Two samples shall be taken at random from different packages from each lot, batch, day’s pack, or other unit of production
in a shipment. When no markings distinguishing between units of production appear, samples shall be taken from different
packages in the ratio of two samples for each 5 tons (inch-pound or SI), except that for shipments of less than 10 000 lb two
samples shall be taken. At the option of the purchaser, the samples may be tested separately or after blending in equal quantities
t
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.