ASTM D784-03
Historical Standard: ASTM D784-03 Standard Specification for Orange Shellac and Other Indian Lacs for Electrical Insulation
SUPERSEDED (see Active link, below)
ASTM D784
1. Scope
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 IOrange Flake Shellac, Grades A, B, C, and D,
1.1.2 Type IIButton Lac, and
1.1.3 Type IIIGarnet Lac.
1.2 Stick-lac and seed-lac are not covered by this specification.
Note 1ISO Specifications 56-1 and 56-2 cover shellac. However, the equivalency of the ISO specification to this standard is unknown. Direct reference to the ISO standards may be made if it is necessary to determine equivalency.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D29 Test Methods for Sampling and Testing Lac Resins
D411 Test Methods for Shellac Used for Electrical Insulation
D1711 Terminology Relating to Electrical Insulation
ISO Standards
562 ShellacSpecificationsPart 2: Machine-Made ShellacKeywords
bonded mica paper; bonded mica splittings; button lac; garnet lac; lac; orange flake shellac; Bonded mica; Button lac; Electrical insulating liquids--specifications; Electrical insulating materials--specifications; Electrical insulating shellac; Garnet lac; Indian lacs; Lac resins; Orange flake shellac;
ICS Code
ICS Number Code 29.035.60 (Varnished fabrics)
DOI: 10.1520/D0784-03
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