Standard

NEN-ISO 248-2:2012 en

Rubber, raw - Determination of volatile-matter content - Part 2: Thermogravimetric methods using an automatic analyser with an infrared drying unit

  • This norm is withdrawn since 01-04-2019

58,24 63,48 Incl BTW

About norm

Status Withdrawn
Number of pages 10
Committee Rubber
Published on 01-05-2012
Language English
This part of ISO 248 specifies two thermogravimetric methods for the determination of moisture and other volatile-matter content in raw rubbers by using an automatic analyser with an infrared drying unit. These methods are applicable to the determination of volatile-matter content in synthetic rubbers (SBR, NBR, BR, IR, CR, IIR, halogenated IIR and EPDM) listed in ISO 1629 and to various forms of raw rubber, such as bale, block, chip, pellet, crumb, powder and sheet. These methods might also be applicable to other raw rubbers, but in such cases it is necessary to prove that the change in mass is due solely to loss of original volatile matter and not to rubber degradation. The methods are not applicable to raw rubbers which need homogenizing as specified in ISO 1795. The hot-mill method and the oven method specified in ISO 248-1 and the methods specified in this part of ISO 248 might not give identical results. In cases of dispute, therefore, the oven method, procedure A, specified in ISO 248-1:2011 shall be the referee method.

Details

ICS-code 83.040.10
Dutch title Ruwe rubber - Bepaling van het gehalte aan vluchtige bestanddelen - Deel 2: Thermogravimetrische methode met behulp van een automatische analysator met een infrarood droogeenheid
English title Rubber, raw - Determination of volatile-matter content - Part 2: Thermogravimetric methods using an automatic analyser with an infrared drying unit
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