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GB/T 18374-2022Terminology for reinforcements (English PDF)

增强材料术语

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 11, 2022

Implementation date

February 1, 2023

Scope

GB/T 18374-2022 is the English-translated version of 增强材料术语.

GB/T 18374-2022 is the Chinese vocabulary of reinforcement materials. It defines the terms used for the reinforcements of composite materials and arranges them by the nature of the entry: terms for reinforcing fibres, terms for fibre products, terms for additives and moulding compounds, and terms for performance and characterisation.

Among the fibre entries are fibre, continuous fibre, staple fibre, reinforcement fibre, glass fibre, textile fiberglass, E-glass fibre and E-CR glass fibre. The document states that it has no normative references, and it closes with a bibliography and an index.

It replaces GB/T 18374-2008, was issued on 11 July 2022 and has applied since 1 February 2023.

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Document preview — GB/T 18374-2022

National Standard of the People's Republic of China

ICS: 59.100.10
Classification: Q 36
Replacing: GB/T 18374-2008

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1 Scope
2 Normative references
3 Reinforcing fiber term
4 Terminology for fiber products
5 Additives and Molding Compound Terms
6 Performance and Characterization Terms
Reference
Index

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" drafted.

This document replaces GB/T 18374-2008 "Terms and Definitions of Reinforcing Materials". Compared with GB/T 18374-2008, except for structural adjustment In addition to editorial changes, the main technical changes are as follows.

a) Reclassified and arranged according to the nature of the entries;

b) Deleted the terms and definitions related to carbon fiber (see Chapter 4 of the 2008 edition);

c) Deleted some terms and definitions indicating the grades of molding compounds and composite materials and resins (see Chapter 6 and Chapter 7 of the 2008 edition);

d) Added related terms and definitions of new glass fibers, composite fibers, ceramic fibers, polymer fibers, and new technology fibers (see Section Chapter 3);

e) Added relevant terms and definitions for new fabrics (see Chapter 4).

1 Scope

This document defines terms and definitions related to reinforcement materials.

This document applies to reinforcements of composite materials.

2 Normative references

There are no normative references in this document.

3 Reinforcing fiber terms

3.1 Fiber

A filamentous unit of matter with a large aspect ratio.

3.2 Continuous fibre

Fibers with a sufficiently large aspect ratio in continuous lengths (3.1).

3.3 Staple fiber

Short fibers of spinnable length (3.1).

NOTE: Can be cut short during drawing, or cut into segments from continuous fibers (3.2).

3.4 Reinforcement fiber

The fiber (3.1) material added to the matrix can significantly improve its mechanical properties.

Note: The matrix can be polymers, inorganic compounds, carbon or metal materials, etc.

3.5 Glass fiber

Fibers (3.1) or filaments obtained by drawing molten glass.

3.6 Textile fiberglass

Generic term for textile materials made of continuous glass fibers (3.5) and cut-to-length glass fibers.

3.7 E-glass fiber

It is a general-purpose glass drawn from glass with SiO2-Al2O3-CaO-MgO-B2O3 as the main component, which has both electrical insulation, strength and durability fiber (3.5).

Note: It may contain boron or not (or a small amount) of boron, and the mass fraction of alkali metal oxides is usually 0% to 2%.

3.8 E-CR glass fiber

Glass fiber (3.5) drawn from glass of specific composition formed by modification of boron-free E glass to improve acid resistance.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 34 pages — is available in the English PDF.

Referenced standards

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Editions of GB/T 18374

Edition	Title	Revision	Status
GB/T 18374-2022	Terminology for reinforcements	current edition	Current
GB/T 18374-2008	Terminology for reinforcements	previous edition	Superseded

This page sells the current edition, GB/T 18374-2022. Earlier editions are listed for reference only.

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