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ASTM D784-08

Standard Specification for Orange Shellac and Other Indian Lacs for Electrical Insulation (Withdrawn 2013)
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1.1 This specification covers the requirements and methods of test for three types and four grades of orange shellac and other lacs, typically used as bonding agents for mica splittings and reconstituted mica paper and as coating for other materials, as follows:

1.1.1 Type I—Orange Flake Shellac, Grades A, B, C, and D,

1.1.2 Type II—Button Lac, and

1.1.3 Type III—Garnet Lac.

1.2 Stick-lac and seed-lac are not covered by this specification.

Note 1—ISO Specifications 56–1 and 56–2 cover shellac. However, the equivalency of the ISO specification to this standard is unknown. Refer directly to the ISO standards to determine equivalency.

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

This specification covers the requirements and methods of test for three types and four grades of orange shellac and other lacs, typically used as bonding agents for mica splitting and reconstituted mica paper and as coating for other materials, as follows: type I - orange flake shellac, grades A, B, C, and D; type II - button lac; and type III garnet lac. The material shall conform to the requirements prescribed.

SDO ASTM: ASTM International
Document Number D784
Publication Date May 1, 2008
Language en - English
Page Count 2
Revision Level 08
Supercedes
Committee D09.01
Publish Date Document Id Type View
May 1, 2008 D0784-08 Revision
Dec. 1, 2003 D0784-03 Revision
March 10, 1999 D0784-99 Revision