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Normas BSI – AENOR
19/30371102 DC

19/30371102 DC

BS ISO 3387. Rubber. Determination of crystallization effects by hardness measurements

Fecha:
2019-05-13 /Definitive
Comité:
PRI/22
Equivalencias internacionales:

ISO/DIS 3387

Resumen:

This document specifies a test based on hardness measurements for determining the progressive stiffening of rubber with time, caused by crystallization. It is limited to materials having an initial hardness at a test temperature of from 10 IRHD to 85 IRHD.

The method is applicable to raw, unvulcanized (compounded) and vulcanized rubber. It is mainly of interest for rubber with a marked crystallization tendency at temperatures experienced in cold climates, such as chloroprene and natural rubber.

The method is not applicable to fast-crystallizing materials which crystallize to a considerable degree within the time-span of 15 min used for conditioning at test temperature.

Keywords:
Rubber, Chemical technology processes, Crystallization, Hardness, Measurement
22,12
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