标准号:IS 9996-1981
发布日期:1982/7/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围: Covers gauging practice and dimensions for gauges for line pipe threads in petroleum industry covered in IS : 3333 ( Part I ) -1967 ' Dimensions for petroleum industry pipe threads : Part I Line pipe threads.