Published
ISO 9969:2016 specifies a test method for determining the ring stiffness of thermoplastics pipes having a circular cross section.
WITHDRAWN
ISO 9969:2007
PUBLISHED
ISO 9969:2016
90.93
Standard confirmed
Oct 18, 2021
Thermoplastics pipes - Determination of ring stiffness (ISO 9969:2016)
60.60 Standard published