ASTM D411-98(2003)
Standard Test Methods for Shellac Used for Electrical Insulation
- Standard No.
- ASTM D411-98(2003)
- Release Date
- 1998
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D411-08
- Latest
- ASTM D411-08
- Scope
Polymerization time provides a measure of time during which shellac retains its plasticity and flow properties at the specified temperature before gelling or polymerizing to the tough rubbery insoluble form. This test is important in determining the quality of different lots, useful shelf-life, batch uniformity, and processing characteristics of shellac.
1.1 These test methods cover tests for shellac in the dry button or powder form to be used for electrical insulating purposes. Typically, shellac is used as a bonding agent for mica splittings and reconstituted mica paper products, or as a coating or adhesive for other material.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 18212;There is no similar or equivalent IEC standard.
ASTM D411-98(2003) Referenced Document
- ASTM D1711 Standard Terminology Relating to Electrical Insulation*， 1999-04-19 Update
- ASTM D29 Standard Specification for Centrifugally Cast "Fibreglass" (Glass Fiber Reinforced Thermosetting Resin) Pipe
- ASTM D5032 Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Glycerin Solutions
- ASTM D6054 Standard Practice for Conditioning Electrical Insulating Materials for Testing
- ASTM E104 Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
ASTM D411-98(2003) history
- 2008 ASTM D411-08 Standard Test Methods for Shellac Used for Electrical Insulation
- 1998 ASTM D411-98(2003) Standard Test Methods for Shellac Used for Electrical Insulation
- 1998 ASTM D411-98 Standard Test Methods for Shellac Used for Electrical Insulation
