GA 667-2020 in English

VALID

Anti-explosion transparent materials

Issued on:2020-01-19
Implemented on:2020-08-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $210.00
$204.00

Standard No:	GA 667-2020
Document status:	VALID
Title in English:	Anti-explosion transparent materials
Title in Chinese:	防爆炸透明材料
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2020-01-19
Implemented on:	2020-08-01
Superseding:	GA 667-2006 Blast resistant composited glass
ICS Classification:	13.310-Protection against crime
Chinese Classification:	A90-Social and public safety in general
Professional Classification:	GA-Security
Related Keywords:	standard explosion-proof transparent materials anti-explosion transparent materials introduction analysis key parameters test method non-contact explosion grade key test equipment requirements dynamic pressure sensor contact explosion level
Related Topics:	transparent material explode Combined Explosion net explosive quantity Explosion-proof Bromine becomes transparent What is the transparency of the material? western oil explosion Material transmission sample preparation Transparency of various materials Material light transparent window Beihua Explosion transparent film material burst transparent transparency chemical park explosion explosion chemical explosion Sanning Explosion Transparent material phase transparent metal material various transparent materials what material transparency How transparent is the material Exploding Nuts through recent explosion explosion measure Anti-knock material transparent electrode pe material transparency Transparent waterproof glue transmittance Oral material transparency Transparency Grading of Oral Materials Explosion hole test Explosion-proof breathable sheet

本标准规定了防爆炸透明材料的分类、分级和代号、技术要求、试验方法、检验规则、包装、运输和贮存，适用于具有防爆炸性能需求的防爆炸复合玻璃等透明板材的生产、检验和验收。

Introduction

Analysis of the core content of the standard

Explosion-proof transparent materials: refers to panels such as composite glass with a light transmittance ≥55% and that can withstand specific explosion impacts. They are divided into Class A (cracks/splashes on the back) and Class B (no cracks and no splashes) according to their protection capabilities.

Comparison of key technical indicators

Performance type	Grading	Key parameters	Test method
Non-contact explosion	Grade 1-7	Shock wave overpressure peak value 110-1000kPa	Appendix A Dynamic Pressure Test
	Proportional distance=explosion distance/(TNT equivalent^1/3)		Appendix A Dynamic Pressure Test
	Contact explosion	Level 1-3	TNT charge 50-150g	Hemispherical explosive surface detonation

Key points of standard evolution

2006 version → New version major changes:

Added 6 new terms (blast center, proportional distance, etc.)
Refined explosion-proof performance classification (non-contact 7 levels → original 5 levels)
Added Dimensional deviation requirements (thickness 11-100mm tolerance ±0.5-5mm)

Modify the transmittance index (non-contact level 7 requires ≥55%)

Implementation and application suggestions

Product selection example

Financial venues recommend the use of FBC-D5B/V2A-30:
- Non-contact level 5 (570kPa shock wave)
- Contact level 2 (100g TNT)
- Class B back protection
- 30mm nominal thickness

Key points for quality control

Each batch must be tested for transmittance (GB 5137.2 optical test)

Explosion-proof performance sampling according to GB/T 2829 periodic inspection

Packaging must contain impact surface marking

Key test equipment requirements

Dynamic pressure sensor:
- Linear error ≤1%
- Rise time ≤4μs
- Sampling rate ≥1MSa/s (data acquisition system)
Note: GJB 338A explosive equivalent calibration is required regularly

More samples: GB 18306-2015 QC/T 942-2021 DL/T 5154-2012

Sample only — not a preview of GA 667-2020

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