Questions & Answers
What is the design time to be used according to ISO 10508 when calculating design stress/pressure for hot and cold water applications?
The design time for Class 1, 2, 3 and 5 is 50 years +100 h, which equals 438 100 h. For calculation of application Class 20C in the plastics piping systems standards, you apply 50 y equal to 438 000 h.
Marco Mekes