MT 644-1997Pneumatic support (English PDF)
气垛支架
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Issued by
State Administration of Work Safety
Level / Type
National · Mandatory
Issue date
November 10, 1997
Implementation date
April 1, 1998
Scope
MT 644-1997 is the English-translated version of 气垛支架.
MT 644-1997 is the Chinese standard "Pneumatic support". This standard specifies the air crib stent product classifications, technical requirements, test methods, inspection rules and packaging, storage and transport.
This standard applies to coal mine h coal face support and other temporary support bracket stack gas. Issued on 11/10/1997, in force from 4/1/1998. It cites 7 other standards.
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Document preview — MT 644-1997
National Standard of the People's Republic of China
- ICS
- 73.100.99
- Classification
- D97
Contents
- Normative references
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document.
GB/T 519-1993
GB/T 528-1992
GB/T 531-1992
GB/T 532-1989
GB/T 1689-1982
MT 113-1995
MT/T 154.1-1992
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 8 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 519-1993Test methods for measuring physical properties of pneumatic tyres
- GB/T 528-1992Rubber, vulcanized or thermoplastic -- Determination of tensile stress-strain properties
- GB/T 532-1989Rubber, vulcanized or thermoplastic -- Determination of adhesion to textile fabric
- GB/T 1689-1982Rubber vulcanized-Determination of abrasion resistance (Akron machine)
- MT/T 154.1-1992The model designation of electromechanical product for coal mine. Part 1: Directive mine
GB/T 531-1992 · MT 113-1995
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MT 644-1997
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