IS 9639-1980

标准号：IS 9639-1980
发布日期：1981/3/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This standard covers the measurement of various external and internal defects by visual inspection and the limiting criteria for the acceptanceof newly manufactured low pressure gas cylinders marked with a working pressure less than 35 kgf/cm2, on the basis of extent of defects revealed by visual inspection. The limits specified in this standard apply only to newly manu-factured cylinders. They do not apply to cylinders already in use. For cylinders in use the following Indian Standards have already been prepared:IS : 5845-1970 Code of practice for visual inspection of low pressure gas cylindersIS: 8433-1977 Code of practice for visual inspection of dissolved acetylene cylindersIS: 8451-1977 Code of practice for visual inspection of high pressure gas cylinders