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MT/T 785-2011Polycrystalline diamond compact core bit (English PDF)

金刚石复合片取心钻头

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Issued by

State Administration of Work Safety

Level / Type

National · Recommended

Issue date

April 12, 2011

Implementation date

September 1, 2011

Scope

MT/T 785-2011 is the English-translated version of 金刚石复合片取心钻头.

MT/T 785-2011 — Polycrystalline diamond compact core bit

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Document preview — MT/T 785-2011

National Standard of the People's Republic of China

ICS: 73.100.99
Classification: D 81
Replacing: MT/T 785-1998

Issued by: State Administration of Work Safety

What this standard covers1
Document data2
Standards quoted by this document3

What this standard covers

This standard specifies the PDC coring drill (hereinafter referred to as the drill bit) of the type, models and parameters, technical requirements, test methods, inspection rules, signs, packaging and storage. This standard applies to coal geology, coal mine gas drainage, turning water drainage borehole drilling and coring bits with PDC.

Document data

International classification (ICS): 73.100.99.

Chinese classification (CCS): D81.

Estimated length of the Chinese original: 14,195 words.

Supersedes the earlier edition MT/T 785-1998.

Standards quoted by this document

GB/T 228-2002; GB/T 13264; JB/T 3235-1999; JB/T 10041

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 9 pages — is available in the English PDF.

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