GB/T 4616-2008 (English Version) PDF

Standard No.: GB/T 4616-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 4616-2008
Replace: GB/T 4616-1984

Scope: This standard specifies the gravimetric method to determine the content of soluble matter extracted from phenolic molding compound powder by acetone near its boiling point. This standard is only applicable to molding compounds based on novolac resins, not to molding compounds based on resole phenolic resins, because the latter type of resins cannot be completely dissolved in acetone. In this standard, the amount of acetone solubles is the resin content. Although the extract is mainly composed of phenolic resin and hexamethylenetetramine, there are usually other acetone soluble components (such as lubricants, colorants, etc.) agents or natural resins from fillers), are collectively referred to as resins.

GB/T 4616-2008 Referenced Document

GB/T 1404.1 Plastics.Phenolic powder moulding compounds.Part 1:Designation system and basis for specifications
GB/T 2035 Terms and definitions for plastics

2008 GB/T 4616-2008 Plastics.Phenolic moulding materials.Determination of acetone-soluble matter(apparent resin content of material in the unmoulded state)
1984 GB/T 4616-1984 Phenolic moulding materials--Determination of acetone soluble matter(apparent resin content of material in the unmoulded state)