ISO 9969:2016
Thermoplastics pipes — Determination of ring stiffness
Thermoplastics pipes — Determination of ring stiffness
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 8
- Дата публикации:
- 4 января 2016 г.
- Издание:
- ISO IS 9969 edition 3 version 1
- ICS:
- 23.040.20
ISO 9969:2016 specifies a test method for determining the ring stiffness of thermoplastics pipes having a circular cross section.
Abstract
Overview
ISO 9969:2016 - Thermoplastics pipes - Determination of ring stiffness specifies a laboratory test method for determining the ring stiffness of thermoplastics pipes with circular cross-sections. The standard defines required apparatus, sample preparation, conditioning, test procedure and how to calculate and report ring stiffness from force–deflection data. Ring stiffness is determined from the force required to produce a 3% diametric deflection of a pipe specimen loaded between two parallel plates.
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