Describes the significant hazards pertinent to mechanized drill rigs, when used as intended and under the conditions foreseen by the manufacturer. Ascertains requirements of safety concerning the design, construction, operation and maintenance. Also relates to drill rigs for surface and underground drilling in the tunnelling, mining, construction and water well drilling industries.

UNI EN 791:1997

ONORM EN 791:1996 - Identical

NEN EN 791:1995 - Identical

SN EN 791:1996 - Identical

ONORM EN 791:2010 - Identical

SS EN 791:1995 - Identical

UNE EN 791:1996 - Identical

NS EN 791:1995 - Identical

NF EN 791:1996 - Identical

NBN EN 791:1996 - Identical