GB/T 4616-1984
Replaced
GB/T 41880-2022
Active
National standards
GB/T 41880-2022 Plastics—Epoxy resins—Determination of electrical conductivity of aqueous resin extracts
GB/T 41880-2022 Plastics—Epoxy resins—Determination of electrical conductivity of aqueous resin extracts
Basic Information
Standard Code:
GB/T 41880-2022
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Synthetic resins and plastics
ICS Name:
Thermosetting plastics
Publish Date:
2022-10-12
Implement Date:
2022-10-12
Pages:
6 pages
Scope
This document describes the method for determining the electrical conductivity of the water extract solution obtained by extracting epoxy resin with water at 95°C.
This document is only applicable to epoxy resins that are in a molten state at the extraction temperature (95°C).
This method is of great significance for epoxy resins used as insulating materials for electronic devices. The electrical conductivity of the extract solution is used to evaluate the concentration of ionic substances in the resin.
Development Information
Adopt standards
ISO 21318:2007
Related Standards
GB/T 4617-1984
Replaced
GB/T 4617-1984 Phenolic mouldings—Determination of acetone-soluble matter
GB/T 5471-1985
Replaced
GB/T 5471-1985 Preparation method for compression moulding of specimens of thermosetting moulding materials
GB/T 5472-1985
abolished_transferred
GB/T 5472-1985 Test method for rectangular flow cure properties of thermosetting moulding compounds
GB/T 5473-1985
Replaced
GB/T 5473-1985 Phenol-formaldehyde mouldings—Detection of free ammonia
GB/T 5474-1985
Replaced