This document specifies methods for determining the initial ring stiffness of glass-reinforced thermosetting plastics (GRP) pipes. Two methods are given (constant load and constant deflection), and within the specified deflection limits, each is equally valid and can be used for any diameter.
PROJEKAT
naSRPS EN ISO 7685:2026
40.20
Nacrt na javnoj raspravi 60 dana
29. 10. 2026.
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