Published
Specifies the material for and dimensions of equipment for drilling in solid or weakly fissured medium hard or hard formations to depths of 1200 m to 1500 m. Applies to equipment with outer bit diameters of 46 mm, 59 mm, 76 mm and 93 mm with corresponding core diameters from 24 mm to 59 mm.
                    PUBLISHED
                    SRPS ISO 10098:1996
                    90.93
                                        Standard confirmed
                    Sep 4, 2023