DZ/T 0109-1994 PDF English
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Basic data
| Standard ID | DZ/T 0109-1994 (DZ/T0109-1994) |
| Description (Translated English) | Drill collars for hydrogeologic and water well drilling |
| Sector / Industry | Geological Industry Standard (Recommended) |
| Classification of Chinese Standard | D81 |
| Word Count Estimation | 5,544 |
| Older Standard (superseded by this standard) | GB 9812-1988 |
| Quoted Standard | GB 9811; GB 2106; GB 231; GB 228 |
| Adopted Standard | API Guide 7, NEQ |
| Summary | This standard specifies the drill collar types, basic parameters and technical requirements. Applicable to hydrogeology and water well drilling. |