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Normas DIN – AENOR
DIN EN ISO 75-1:2012-01

DIN EN ISO 75-1:2012-01

Plastics - Determination of temperature of deflection under load - Part 1: General test method (ISO/DIS 75-1:2011); German version prEN ISO 75-1:2011 / Note: Date of issue 2012-01-09

Plastiques - Détermination de la temérature de fléchissement sous charge - Partie 1: Méthode d'essai générale (ISO/DIS 75-1:2011); Version allemande prEN ISO 75-1:2011 / Attention: Date de parution 2012-01-09

Kunststoffe - Bestimmung der Wärmeformbeständigkeitstemperatur - Teil 1: Allgemeines Prüfverfahren (ISO/DIS 75-1:2011); Deutsche Fassung prEN ISO 75-1:2011 / Achtung: Erscheinungsdatum 2012-01-09

Fecha Anulación:
2013-08 /Withdrawn
Equivalencias internacionales:

ISO/DIS 75-1 (2012-01)

prEN ISO 75-1 (2012-01)

Relación con otras normas DIN:

Reemplazada por: DIN EN ISO 75-1:2013-08

Resumen:
This part of the standard specifies methods for the determination of the temperature of deflection under load (flexural stress under three-point loading) of plastics. Different types of test specimen and different constant loads are defined to suit different types of material. The methods specified are suitable for assessing the relative behaviour of different types of material at elevated temperature under load at a specified rate of temperature increase. The results obtained do not necessarily represent maximum applicable temperatures, because in practice essential factors such as time, loading conditions and nominal surface stress may differ from the test conditions. True comparability of data can only be achieved for materials having the same room-temperature flexural modulus. The methods specify preferred dimensions for the test specimens. Tests which are carried out on specimens of different dimensions, or on specimens which are prepared under different conditions, may produce different results. Consequently, when repeatable data are required, sample preparation conditions and test variables should be carefully controlled and recorded.
Keywords:
Bend testing, Bending stress, Definitions, Determination, Dimensional stability, Laminates, Materials testing, Plastics, Temperature, Temperature measurement, Test equipment, Test specimens, Testing, Testing conditions, Thermal stability, Three-point loading
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