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GB 2702-1990Safety boxes for explosives (English PDF)

爆炸品保险箱

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Issued by

State Bureau of Technical Supervision

Level / Type

National · Mandatory

Issue date

December 25, 1990

Implementation date

October 1, 1991

Scope

GB 2702-1990 is the English-translated version of 爆炸品保险箱.

GB 2702-1990 specifies the technical conditions, verification tests and inspection rules for safety boxes used to carry explosives, and is the technical basis for their design and verification; boxes made to it may be consigned as less-than-carload freight at railway stations.

It defines eight types, A-1 to A-6 and B-1 and B-2, with dimensions from 470 × 360 × 320 mm to 2 050 × 480 × 480 mm.

The box must keep its internal temperature at no more than 100 °C for 20 min in a fire (furnace rising to 780 °C at 20 min), resist a 3 t load for 24 h and survive a 1.5 m drop; it is built in three layers (1.5 mm steel plate, 30 mm aluminium silicate fibre felt and wooden inner boards at least 20 mm thick), painted grass green and marked with the explosives and handling labels of GB 190 and GB 191.

Verification covers the fire insulation test, the free drop test to GB 4857.5 and the compression test to GB 4857.3 or GB 4857.16, followed by type and factory inspection and judgement rules.

It replaces GB 2702-81. Issued on 25 December 1990 and in force since 1 October 1991. Classification: CCS A82. The document runs to 4 pages, delivered complete in English translation.

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Document preview — GB 2702-1990

National Standard of the People's Republic of China

Classification: A82
Replacing: GB 2702-1981

Issued by: State Bureau of Technical Supervision

1 Subject content and scope of application
2 Referenced standards
3 Type and dimensions
4 Technical specifications
5 Verification test items and requirements
6 Inspection rules
7 Decision rules
8 Packaging and keeping

3 Type and dimensions

4 Technical specifications

5 Verification test items and requirements

6 Inspection rules

7 Decision rules

8 Packaging and keeping

Foreword

National Standard of the People's Republic of China GB 2702-90, Safety boxes for explosives, replacing GB 2702-81.

Approved by the State Bureau of Technical Supervision on 1990-12-25; implemented from 1991-10-01.

Additional notes:

This standard was proposed by the Ministry of Railways of the People's Republic of China.

This standard is under the jurisdiction of, and was drafted by, the Standards and Metrology Research Institute of the Ministry of Railways.

Main drafter of this standard: Liu Cuixia.

This standard was first issued on 1 November 1981.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 4 pages — is available in the English PDF.

Referenced standards

Normative references

GB 3538 · GB 4857.3 · GB 4857.5 · GB 4857.16 · GB 7633

Cited by

Similar standards

GB 13042-2008|GB 18191-2008|GB 19160-2008|GB 11217-1989|GB 11341-2008

Editions of GB 2702

Edition	Title	Revision	Status
GB 2702-1990	Safety boxes for explosives	current edition	Current

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