Drill rod: BQ, NQ, HQ , PQ , 1-BQ,NQ, HQ, PQ ... -96 regulations, casing length, its scope uncertain feet 8 to 13 m. But not less than 6 m casing can provide ... or the latest version provisions as E10), tensile test, transverse impact test (ASTMA370, ASTME23 and relevant provisions of the most recent ...