GB/T 14520-2025 Active National standards

GB/T 14520-2025 Determination of the residual styrene monomer content as well as the content of other volatile aromatic hydrocarbons in the unsaturated polyester resin-based reinforced plastics—Gas chromatography

GB/T 14520-2025 Determination of the residual styrene monomer content as well as the content of other volatile aromatic hydrocarbons in the unsaturated polyester resin-based reinforced plastics—Gas chromatography

Publish Date: 2025-08-29 Implement Date: 2026-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 14520-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods for synthetic resins and plastics

ICS Name: Thermosetting plastics

Publish Date: 2025-08-29

Implement Date: 2026-03-01

Pages: 16 pages

Scope

This document describes the method of determining the residual styrene monomer content in cured unsaturated polyester resin-based reinforced plastics and their castings by gas chromatography.
This document is applicable to the determination of styrene and other volatile aromatic hydrocarbons in unsaturated polyester resin-based reinforced plastics and unsaturated polyester resin castings.

Development Information

Word Count: 17 Thousand words Pages: 16 pages

Replace the following standards

GB/T 14520-1993 Determination of residual styrene monomer content in reinforced plastics based on unsaturated polyester resins by gas chromatography

Referenced Standards

GB/T 2035-1996 Terms and definitions for plastics GB/T 2035-2008 Terms and definitions for plastics GB/T 2035-2024 Plastics—Vocabulary GB/T 2577-1989 Test method for resin content of glass fiber reinforced plastics GB/T 2577-2005 Test method for resin content of glass fiber reinforced plastics GB/T 30430-2013 Standard column used for evaluating gas chromatography GB/T 30430-2019 Standard column used for evaluating gas chromatographs

Adopt standards

ISO 4901:2011

Related Standards

GB/T 4616-1984 Replaced

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

Publish Date: 1984-07-30

GB/T 4617-1984 Replaced

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Publish Date: 1984-07-30

GB/T 5471-1985 Replaced

GB/T 5471-1985 Preparation method for compression moulding of specimens of thermosetting moulding materials

Publish Date: 1985-10-17

GB/T 5472-1985 abolished_transferred

GB/T 5472-1985 Test method for rectangular flow cure properties of thermosetting moulding compounds

Publish Date: 1985-10-17

GB/T 5473-1985 Replaced

GB/T 5473-1985 Phenol-formaldehyde mouldings—Detection of free ammonia

Publish Date: 1985-10-17

GB/T 5474-1985 Replaced

GB/T 5474-1985 Phenol-formaldehyde mouldings—Determination of free ammonia and ammonium compounds—Colorimetric comparison method

Publish Date: 1985-10-17