Withdrawn
Specifies the technical delivery conditions for steel drill pipes. Describes the group 1, all grade E pipes, and group 3, all drill pipes in high strength grades X95, G105 and S135.
WITHDRAWN
ISO 11961:1996
95.99
Withdrawal of Standard
Oct 22, 2008
Petroleum and natural gas industries — Steel pipes for use as drill pipe — Specification
60.60 Standard published