ASTM D209-81(2023)

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: D209 − 81 (Reapproved 2023)
Standard Specification for
Lampblack Pigment
This standard is issued under the fixed designation D209; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope received it shall not be caked in the container, and shall break
up readily in oil to form a smooth paint of brushing consis-
1.1 This specification covers the pigment commercially
tency. It shall mix readily in all proportions, without curdling,
known as lampblack. The pigment may be purchased in the dry
with linseed oil, turpentine, or volatile petroleum spirits, or any
form or as a paste in oil.
mixture of these substances. The paste shall conform to the
1.2 This international standard was developed in accor-
following requirements:
dance with internationally recognized principles on standard-
Pigment, min, % 25
ization established in the Decision on Principles for the
Linseed oil, max, % 75
Development of International Standards, Guides and Recom-
Moisture and other volatile matter, max, % 0.7
Coarse particles and skins (total residue retained on a 1.0
mendations issued by the World Trade Organization Technical
45-μm (No. 325) sieve), max, % of the dry pigment
Barriers to Trade (TBT) Committee.
3.3 The mass color and character of the tint and the tinting
2. Referenced Documents
strength formed by a mixture with a white pigment shall be
within mutually agreed- upon limits of a standard acceptable to
2.1 ASTM Standards:
both the purchaser and the seller.
D185 Test Methods for Coarse Particles 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 Pigment—The pigment shall be made by burning
from different packages in the ratio of two samples for each
oils or tars in such a manner as to form a deposit of carbon or
10 000 lb (4540 kg), except that for shipments of less than
soot. It shall be high grade in every respect and shall be free
10 000 lb two samples shall be taken. At the option of the
from oil, greasy matter, and admixture of any other substance.
purchaser, the samples may be tested separately or after
The pigment shall conform to the following requirements:
blending in equal quantities the samples from the same
Ash, max, % 0.5
prod
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