This standard specifies the terms and definitions, product classification, technical requirements, test methods, inspection rules, marking, packaging, storage and transportation of concrete and reinforced concrete drainage pipe steel forms. This standard applies to centrifugal, suspended roller, vibration and vertical extrusion formed concrete and reinforced concrete drainage pipe steel molds (hereinafter referred to as pipe molds) specified in GB 11836-1999.
JC/T 613-2005 Referenced Document
GB/T 1031-1995 Surface ronghness parameters and their values
GB/T 1184-1996 Geometrical tolerancing--Geometrical tolerance for features without individual tolerance indications
GB/T 1800.4-1999 Limits and fits Tables of standard tolerance grades and limit deviations for holes and shafts