Rubber. Dissolution by acid digestion

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-10-2006

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sample preparation
7 Procedures

Defines methods for disintegration of raw rubber and rubber products by nitric acid or by a mixture of nitric and sulfuric acids.

This International Standard specifies methods for disintegration of raw rubber and rubber products by nitric acid or by a mixture of nitric and sulfuric acids. This International Standard is generally applicable, but is essential where potentially volatile elements or combinations of elements are present (i.e. As, Sb, Bi, and Zn+Cl, Cu+Cl and Pb+Cl). It is useful in these cases because lower temperatures are involved which result in less loss by volatilization.

These methods will be used in order to produce solutions for the determination of metals, for example as traces, if the application of ISO247 is not advisable. These methods prevent loss of volatile metal derivatives and the formation of insoluble metal silicates (which may result during dry ashing of halogenated rubbers containing zinc or of rubbers filled with silica).

Committee	PRI/22
DevelopmentNote	Supersedes BS 7164-4(1990). (10/2006)
DocumentType	Standard
Pages	12
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 7164-4:1990

Standards	Relationship
ISO 9028:2006	Identical

ISO 124:2014	Latex, rubber — Determination of total solids content
ISO 1042:1998	Laboratory glassware One-mark volumetric flasks
ISO 1795:2017	Rubber, raw natural and raw synthetic — Sampling and further preparative procedures
ISO 247:2006	Rubber Determination of ash

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BS ISO 9028:2006

Current

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

Subcategory

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