Draft
International Standard
ISO/DIS 458-1
Plastics — Determination of stiffness in torsion of flexible materials — Part 1: General method
Reference number
ISO/DIS 458-1
Edition 2
© ISO 2026
Draft International Standard
Under development
This Draft International Standard is in the enquiry phase with ISO members.
Will replace ISO 458-1:1985

Abstract

Specification of a general method for the determination of the stiffness in torsion at various temperatures, particularly below 0 °C. An observation of torque and angle of deflection is made after an arbitrarily fixed time of load application, using the specified testing apparatus. This procedure is employed at a single temperature or at selected temperature intervals over a range specified for the material to be tested. The stiffness in torsion is expressed as the apparent torsional modulus of elasticity for each temperatur.

General information

  • Status
     : Under development
    Stage
    : DIS registered [40.00]
  • Edition
     : 2
    Number of pages
     : 18
  • Technical Committee :
    ISO/TC 61/SC 2
    ICS :
    83.080.20 
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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