GB/T 7957-2017General requirements for construction, performance and explosion protected testing of cap-lights for use in mines susceptible to firedamp (English PDF)
瓦斯环境用矿灯结构、性能和防爆试验通用要求
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
January 1, 2017
Implementation date
December 29, 2017
Scope
GB/T 7957-2017 is the English-translated version of 瓦斯环境用矿灯结构、性能和防爆试验通用要求.
GB/T 7957-2017 is the Chinese standard "General requirements for construction, performance and explosion protected testing of cap-lights for use in mines susceptible to firedamp".
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Document preview — GB/T 7957-2017
Contents
- 1 Scope
- 2 Normative reference documents
- 3 Terms and Definitions
- 4 Product Category
- 5 Requirement
- 6 Test method
- 7 Inspection Rules
- 8 Marking, packaging, transportation and storage12
1 Foreword
GB/T 7957-2017 is issued by State Administration for Market Regulation; Standardization Administration of the PRC.
2 About this standard
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
English translation: about 15 pages (approximate)
3 Classification and status
Chinese Standard Classification (CCS): K 35
Prefix GB/T: recommended standard.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
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GB/T 7957-2017
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