EN ISO 9967:2016 PDF

Overview

EN ISO 9967:2016 (Thermoplastics pipes - Determination of creep ratio) is a CEN-endorsed adoption of that defines a standardized laboratory method to determine the of with a circular cross-section. The method records pipe deflection under a constant compressive load for 1 008 hours (42 days), analyses deflection vs. time, and extrapolates a two‑year deflection to calculate the creep ratio relative to the initial (6 min / 0.1 h) deflection.