IS 11312 : Part 1 : 1985 Specification for External Upset Drill Pipe Assemblies for Use in Water Well Drilling - Part 1 : Screwed on Joints Drill Pipe
| UDC 622.24.053.6 : 622.245.13.628.112.2 | MED 21 |
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| Reaffirmed 2022 |
1 Scope
Covers the requirements for external upset drill pipe withscrewed on tool joints for use in water well drilling by rotarydrills.