ASTM D267-82(2003)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: D 267 – 82 (Reapproved 2003)
Standard Specification for
Gold Bronze Powder
This standard is issued under the fixed designation D 267; 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.
1. Scope min after cessation of stirring the mixture.) In testing for
leafing properties the powder shall be mixed in the proportion
1.1 This specification covers the materials commercially
of 3 to 4 lb (370 to 475 g/L) to a gallon (3.8 L) of the liquid.
known as gold bronze, pale gold bronze, and rich gold bronze
As thus mixed it shall also give a free flowing, smooth,
powders.
continuous coating in accordance with Test Methods D 480.
2. Referenced Documents
NOTE 1—Asuitable liquid is made by mixing spar varnish conforming
2.1 ASTM Standards:
to the U. S. Federal Specification for Water-Resisting Spar Varnish (No.
A-A-1800) with turpentine conforming to Specification D13 in such
D13 Specification for Spirits of Turpentine
proportions that the mixture will have a viscosity of 0.65 to 0.85 poises (B
D 185 Test Methods for Coarse Particles in Pigments,
2 to C on the Gardner-Holdt scale).
Pastes, and Paints
D 480 Test Methods for Sampling and Testing of Flaked 3.4 The gold bronze powder shall be suitable for making
Aluminum Powders and Pastes gold bronze paint. It shall match in shade and fineness a
2.2 U.S. Federal Specification: reference sample mutually agreed upon by the purchaser and
A-A-1800 Water-Resisting Spar Varnish the seller.
3. Composition and Properties 4. Sampling
3.1 The bronze powder shall be made from new ingot 4.1 Two samples shall be taken at random from different
metals. It shall consist of fine polished flakes containing not packages from each lot, batch, day’s pack, or other unit of
less than 3 % of fatty or oily matter (polishing lubricant) to production in a shipment. When no markings distinguishing
give good “leafing” properties. between units of production appear, samples shall be taken
3.2 The residue retained on a No. 100 (150-µm) sieve, using from different packages in the ratio of two samples for each 5
alcohol as the wash liquid, shall not exceed 0.2 % (in accor- tons (inch-pound or SI), except that for shipments of less than
dance with Test Methods D 185). 10 000 lb two samples shall be taken. At the option of the
3.3 The powder shall have good “leafing” propertie
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