IS 7206 : Part 1 : 1986 General requirements for direct circulation rotary drilling rigs:Part 1 With rotary table
| UDC 622.242 : 622.243.5 : 628.112.24 | MED 21 |
|
| Reaffirmed 2022 |
1 Scope
Lays down the general requirements for direct rotary drillingrig with rotary table used or water well construction.