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GB/T 34886-2026Non-destructive testing - Test method for laser shearography of composite materials (English PDF)

无损检测复合材料激光错位散斑检测方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

September 28, 2026

Implementation date

April 1, 2027

Scope

GB/T 34886-2026 is the English-translated version of 无损检测复合材料激光错位散斑检测方法.

A test method for laser shearography applied to composite materials is set out in this non-destructive testing standard. Laser shearography is an optical technique used to reveal defects in composite structures, such as delamination or debonding, without damaging the part being examined.

Inspection companies, aerospace and wind energy manufacturers, composite fabricators, maintenance organizations, and testing laboratories are the likely users, along with quality engineers who need to specify a shared inspection approach. It is a recommended national standard (GB/T), so it is voluntary unless a contract or customer requires it. This 2026 edition replaces GB/T 34886-2017, meaning inspection procedures that cite the older version should be checked. It was issued on 28 September 2026 and takes effect on 1 April 2027. Readers who work with Chinese suppliers of composite parts may encounter it in inspection requirements.

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Document preview — GB/T 34886-2026

National Standard of the People's Republic of China

ICS: 19.100
Classification: J04
Replacing: GB/T 34886-2017

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

Foreword
1 Scope
2 Normative references
3 Terms and definitions

Foreword

GB/T 34886-2026 is a recommended national standard (GB/T) of the People's Republic of China, issued on 28 September 2026 by the State Administration for Market Regulation and the Standardization Administration of China, with effect from 1 April 2027.

This edition replaces GB/T 34886-2017.

It is under the responsibility of the Standardization Administration of China.

Classification: ICS 19.100; CCS J04.

1 Scope

Remaining clauses in the full document

2 Normative references
3 Terms and definitions

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 21 pages — is available in the English PDF.

Editions of GB/T 34886

Edition	Title	Revision	Status
GB/T 34886-2026	Non-destructive testing - Test method for laser shearography of composite materials	current edition	Current
GB/T 34886-2017	Non-destructive testing - Test method for laser shearography of composite materials	previous edition	In force until 1 April 2027

This page sells the current edition, GB/T 34886-2026. Earlier editions are listed for reference only.

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