ASTM D267-82(2014)

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.
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Designation: D267 − 82 (Reapproved 2008) D267 − 82 (Reapproved 2014)
Standard Specification for
Gold Bronze Powder
This standard is issued under the fixed designation D267; 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.
ε NOTE—The units statement in subsection 1.2 was corrected editorially in July 2008.
1. Scope
1.1 This specification covers the materials commercially known as gold bronze, pale gold bronze, and rich gold bronze powders.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
2. Referenced Documents
2.1 ASTM Standards:
D13 Specification for Spirits of Turpentine
D185 Test Methods for Coarse Particles in Pigments
D480 Test Methods for Sampling and Testing of Flaked Aluminum Powders and Pastes
2.2 U.S. Federal Specification:
A-A-1800 Water-Resisting Spar Varnish
3. Composition and Properties
3.1 The bronze powder shall be made from new ingot metals. It shall consist of fine polished flakes containing not less than
3 % of fatty or oily matter (polishing lubricant) to give good “leafing” properties.
3.2 The residue retained on a No. 100 (150-μm) sieve, using alcohol as the wash liquid, shall not exceed 0.2 % (in accordance
with Test Methods D185).
3.3 The powder shall have good “leafing” properties. (By “leafing” is understood the property of forming an apparently
continuous brilliant film over the entire free surface of a mixture of the powder in a suitable liquid (Note 1), within 1 min after
cessation of stirring the mixture.) In testing for leafing properties the powder shall be mixed in the proportion of 3 to 4 lb (370
to 475 g/L) to a gallon (3.8 L) of the liquid. As thus mixed it shall also give a free flowing, smooth, continuous coating in
accordance with Test Methods D480.
NOTE 1—A suitable liquid is made by mixing spar varnish conforming to the U. S. Federal Specification for Water-Resisting Spar Varnish (No.
A-A-1800) with turpentine conforming to Specification D13 in such proportions that the mixture will have a viscosity of 0.65 to 0.85 poises (B to C on
the Gardner-Holdt scale).
3.4 The gold bronze powder shall be suitable for making gold bronze paint. It shall match in shade and fineness a reference
sample mutually agreed upon by 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 ap
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