Draft
International StandardISO/DIS 458-1
Plastics — Determination of stiffness in torsion of flexible materials — Part 1: General method
Reference number
ISO/DIS 458-1
ISO/DIS 458-1
Edition 2
© ISO 2026
Proyecto Norma internacional
ISO/DIS 458-1
91072
Este borrador de Norma Internacional se encuentra en la fase de consultas con los miembros de ISO.
Reemplazará ISO 458-1:1985
Resumen
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.
Informaciones generales
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Estado: En desarrolloEtapa: DIS registrado [40.00]
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Edición: 2Número de páginas: 18
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Comité Técnico :ISO/TC 61/SC 2ICS :83.080.20
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Ciclo de vida
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Anteriormente
PublicadoISO 458-1:1985
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Ahora
