Повучен
ISO 10424-1:2004 specifies requirements for the following drill stem elements: upper and lower kelly valves; square and hexagonal kellys; drill stem subs; standard steel and non-magnetic drill collars; drilling and coring bits.
ISO 10424-1:2004 is not applicable to drill pipe and tool joints, rotary shouldered connection designs, thread gauging practice, or grand master, reference master and working gauges.
ПОВУЧЕН
ISO 10424-1:2004
95.99
Повучен
4. 4. 2025.
Industrija nafte i prirodnog gasa - Oprema za rotaciono bušenje - Deo 1: Obrtni elementi cevnog alata
90.93 Одлука о потврђивању стандарда