Thermoplastic Pipes Flashcards
1
Q
what is ISO 9080?
A
Current standards usually stipulate that there should be no
transition from ductile to brittle failure within 10,000 hours at higher
temperatures (e.g. 60 C, 80C).
2
Q
What is the MRS?
A
MRS Minimum Recommended Strength:
The hoop stress for a 50 year life at 20C, from extrapolation
of the LCL
3
Q
What are the 3 regions of behaviour?
A
Ductile, brittle and chemical failure
