BS ISO 19242:2021

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Rubber. Determination of total sulfur content by ion chromatography

Published By	Publication Date	Number of Pages
BSI	2021	24

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Description

This document specifies a method for the determination of the total sulfur content of raw rubber and unvulcanized or vulcanized rubber compounds by ion chromatography following the preparation of a sample solution using either a tubular furnace combustion or an oxygen combustion flask method.

The tubular furnace combustion method is applicable for rubbers with sulfur content less than 0,1 % as it is possible that the oxygen combustion flask method will not give sufficiently accurate results.

The oxygen combustion flask method is not applicable to rubbers containing a metal salt that forms an insoluble metal sulfate, such as barium sulfate (CAS 7727?43?7).

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PDF Pages	PDF Title
2	National foreword
6	Foreword
7	Introduction
9	1 Scope 2 Normative references 3 Terms and definitions
10	4 Principle 4.1 Combustion 4.1.1 Tubular furnace combustion method 4.1.2 Oxygen combustion flask method 4.2 Determination 5 Reagents 6 Apparatus
11	7 Procedure 7.1 Preparation of sample solutions 7.1.1 Tubular furnace combustion method 7.1.2 Oxygen combustion flask method 7.2 Determination of sulfate by ion chromatography 7.2.1 Setting up the ion chromatograph 7.2.2 Measuring calibration solutions 7.2.3 Measuring blank solutions and sample solutions
12	8 Calculations 9 Precision 10 Test report
13	Annex A (normative) Preparation of sample solutions by the tubular furnace combustion method
16	Annex B (normative) Preparation of sample solutions by the oxygen combustion flask method
19	Annex C (informative) Examples of conditions for ion chromatography
21	Annex D (informative) Precision data from an interlaboratory test programme
23	Bibliography

Additional information

Status	Definitive
Pages	24
Publication Date	2021-10-21
ISBN	978 0 539 16799 3
Standard Number	BS ISO 19242:2021
Title	Rubber. Determination of total sulfur content by ion chromatography
Identical National Standard Of	ISO 19242
Replaces	BS ISO 19242:2015
Descriptors	Test equipment, Sulfur, Compounding ingredients (rubber), Plastics and rubber technology, Volumetric analysis, Rubber, Determination of content, Carbon black, Combustion test methods, Chemical analysis and testing
Publisher	BSI
Committee	PRI/22
ICS Codes	83.060 - Rubber

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BS ISO 19242:2021

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