ISO 8866:1991
Rotary core diamond drilling equipment; system C
- Standard No.
- ISO 8866:1991
- Release Date
- 1991
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 8866:1991/cor 1:1991
- Latest
- ISO 8866:1991/cor 2:1992
- Scope
- This International Standard specifies the material for and the dimensions of rotary core diamond drilling equipment, system C. NOTE 1 Cutting materials other than diamond may be used. It applies to — single- and double-tube core barrels, including diamond core bits, reaming shells, core lifters, core-lifter cases, core tubes (outer and inner) and heads; — drill rods and couplings; — casing tubes and couplings. The casing tubes are not designed for drilling, and the casing string is only employed for casing-off the hole. The range of equipment covers diamond core drill-ing of holes from 35 mm to 112 mm in diameter (outer bit diameter) with the corresponding core di-ameters from 21 mm to 92 mm. Single- and double-tube core barrels provide a means of coring compact rocks (types M and DM core barrels), fissured and fractured rocks (types T and DT core barrels) and fractured and broken-down rocks (type DP core barrels).
ISO 8866:1991 history
- 1992 ISO 8866:1991/cor 2:1992 Rotary core diamond drilling equipment; system C; technical corrigendum 2
- 1991 ISO 8866:1991/cor 1:1991 Rotary core diamond drilling equipment; system C; technical corrigendum 1
- 1991 ISO 8866:1991 Rotary core diamond drilling equipment; system C
