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  • BSI
    20/30383761 DC BS ISO 248-1. Rubber, raw. Determination of volatile-matter content - Part 1. Hot-mill method and oven method
    Edition: 2020
    $44.66
    / user per year

Description of 20/30383761 DC 2020

This document specifies two methods for the determination of volatile-matter content in raw rubbers by using a hot mill or an oven.

These methods are applicable to the determination of the volatile-matter content in the “R” group of rubbers listed in ISO 1629. These are rubbers having an unsaturated carbon chain, for example natural rubber and synthetic rubbers derived at least partly from di-olefins. These methods can also be applicable to other raw rubbers, but in these cases it is necessary to demonstrate that the change in mass is due solely to loss of actual volatile matter and not to rubber degradation.

The hot-mill method is not applicable to natural rubber, to synthetic rubbers which are too difficult to handle on a hot mill or to synthetic rubbers in powder or chip form.

The two methods do not necessarily give identical results. Therefore, in the case of dispute, the oven method, procedure A, is the reference method.

NOTE

The applicability of each test method to various types of rubber is summarized in Annex A.



Standard Number20/30383761 DC
TitleBS ISO 248-1. Rubber, raw. Determination of volatile-matter content - Part 1. Hot-mill method and oven method
StatusDefinitive
Publication Date2020-02-12
Identical National Standard OfISO/DIS 248-1
DescriptorsTesting conditions, Synthetic rubber, Vulcanized rubber, Volatile matter determination, Gravimetric analysis, Chemical analysis and testing, Rubber, Reproducibility, Water content determination, Natural rubber
ICS83.040.10 Latex and raw rubber
CommitteePRI/50
PublisherBSI
Pages17

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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