This International Standard specifies minimum values for the expected strength as a function of time and temperature in the form of reference lines and tabulated data, for use in calculations on pipes made of — polybutene-1 homopolymer (PB-H), and — polybutene-1 random copolymer (PB-R). For the sake of simplicity the designation polybutene and the abbreviation PB are used throughout.
GSO ISO 12230:2015 history
2015GSO ISO 12230:2015 Polybutene-1 (PB-1) pipes -- Effect of time and temperature on the expected strength