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GB/T 4550-2005Preparation of fiber reinforced plastic plates for test purposes (English PDF)

试验用单向纤维增强塑料平板的制备

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Issued by

State Administration for Market Regulation, Standardization Administration of China

Level / Type

National · Recommended

Issue date

May 25, 2026

Implementation date

December 1, 2026

Scope

GB/T 4550-2005 is the English-translated version of 试验用单向纤维增强塑料平板的制备.

GB/T 4550-2005 is the Chinese standard "Preparation of fiber reinforced plastic plates for test purposes". It was issued by State Administration for Market Regulation, Standardization Administration of China. Issued on 2026-05-25, in force from 2026-12-01.

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Document preview — GB/T 4550-2005

National Standard of the People's Republic of China

ICS: 83.120
Classification: Q23

Issued by: State Administration for Market Regulation, Standardization Administration of China

[Preview only]
1 Scope
2 Normative References
2.1 Terms
3 Terms and definitions
4 Principle
5 Apparatus
6 Expression of results
7 Test report
8 Procedure

1 Foreword

GB/T 4550-2005 was issued by State Administration for Market Regulation, Standardization Administration of China on 25 May 2026 and has been in force since 1 December 2026.

It replaces the earlier edition GB/T 4550-1984.

The GB/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.

2 Scope Preview

GB/T 4550-2005 falls under ICS 83.120, in the field of rubber and plastics industries.

This catalogue holds 1,917 other GB/T standards in that field.

In this catalogue, GB/T standards carry edition years from 1963 to 2026.

3 About this standard

Sector: National Standard (Recommended)

Issued by: State Administration for Market Regulation, Standardization Administration of China

English translation: about 9 pages (approximate)

Chinese original: about 14,170 characters

4 Related standards

Other editions:

GB/T 4550-2026 (later edition)

GB/T 4550-1984 (earlier edition)

Standards on related subjects:

GB/T 3854-2017 — Test method for hardness of reinforced plastics by means of a Barcol impresser

GB/T 2567-2008 — Test methods for properties of resin casting body

GB/T 2577-2005 — Test method for resin content of glass fiber reinforced plastics

GB/T 3139-2026 — Test methods for the thermal conductivity of fibre reinforced plastics

GB/T 1463-2026 — Test methods for the density and relative density of fibre reinforced plastics

5 Classification and status

International classification (ICS): 83.120

Chinese Standard Classification (CCS): Q 23

Prefix GB/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 9 pages — is available in the English PDF.

Referenced standards

Cited by

GB/T 1043.1-2008Plastics -- Determination of Charpy impact properties -- Part 1: Non-instrumented impact test

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