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GB/T 3855-2005Test method for resin content of carbon fiber reinforced plastics (English PDF)

碳纤维增强塑料树脂含量试验方法

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

March 31, 2026

Implementation date

October 1, 2026

Scope

GB/T 3855-2005 is the English-translated version of 碳纤维增强塑料树脂含量试验方法.

GB/T 3855-2005 is the Chinese standard "Test method for resin content of carbon fiber reinforced plastics". It was issued by State Administration for Market Regulation, China National Standardization Administration. Issued on 2026-03-31, in force from 2026-10-01.

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Document preview — GB/T 3855-2005

National Standard of the People's Republic of China

ICS: 59.100.20
Classification: Q53

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

1 Scope
2 Normative reference
3 Principle of method
4 Specimen
4.1 Specimen mass and thickness
5 Test apparatus and reagent
6 Test procedure
7 Calculation
8 Test result
9 Test report

1 Foreword

GB/T 3855-2005 was issued by State Administration for Market Regulation, China National Standardization Administration on 31 March 2026 and has been in force since 1 October 2026.

It replaces the earlier edition GB/T 3855-1983.

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

This standard specifies the specimens, test apparatus and reagents, test procedures, calculations, test results and test reports, etc. in the test of resin content of carbon fiber reinforced plastics. This standard is applicable to carbon fiber reinforced plastics in which sulfuric acid may completely decompose the resin matrix under certain conditions without excessively corroding the fibers.

GB/T 3855-2005 falls under ICS 59.100.20, in the field of textile and leather technology.

This catalogue holds 1,332 other GB/T standards in that field.

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

3 Normative references

GB/T 1463 — Test methods for density and relative density of fiber reinforced plastics

4 About this standard

Sector: National Standard (Recommended)

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

English translation: about 12 pages (approximate)

Chinese original: about 18,128 characters

5 Related standards

Other editions:

GB/T 3855-2026 (later edition)

GB/T 3855-1983 (earlier edition)

Standards on related subjects:

GB/T 26749-2022 — Carbon fibre—Determination of tensile properties of resin-impregnated yarn

GB/T 38887-2020 — Spherical graphite

GB/T 30836-2014 — Lithium titanium oxide and its carbon composite anode materials for lithium ion battery

GB/T 47406-2026 — Test method for the volume resistivity of carbon fibre reinforced composites

GB/T 47405-2026 — Test methods for the permeability of carbon fibre reinforcements used in liquid moulding

6 Classification and status

International classification (ICS): 59.100.20

Chinese Standard Classification (CCS): Q 53

Prefix GB/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 12 pages — is available in the English PDF.

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