This standard specifies the sampling, inspection and determination of inspection results for import and export plastic-coated steel pipes. This standard is applicable to the inspection of plastic-coated steel pipes that carry domestic drinking water with working pressure greater than 1.0MPa, working temperature at normal temperature, and nominal diameter not greater than 150mm.
SN/T 1644-2005 Referenced Document
CJ/T 120 Coating plastic steel pipe for water supply*, 2016-01-27 Update
GB/T 17219 Standard for safety evaluation of equipment and protective materials in drinking water system
GB/T 7306.1 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads Part 1:Parallel internal and taper external threads
GB/T 7306.2 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads Part 2:Taper internal and external threads
SN/T 1644-2005 history
2005SN/T 1644-2005 Rules for the inspection of coating plastic steel pipe for import and export