ISO 20336:2025 石炭およびコークス — クーロン滴定法による全硫黄の定量 | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 27, Coal and coke, Subcommittee SC 5, Methods of analysis.

This second edition cancels and replaces the first edition (ISO 20336:2017), which has been technically revised.

The main changes are as follows:

• replaced “solid mineral fuels” with “coal and coke” and “content” with “mass fraction”;
• added Figure 2 of a purified air stream supply system;
• added a note to 8.1.4.

Introduction

The objective of this document is to provide an alternative method for determining the total sulfur mass fraction in coal and coke with high-temperature combustion by Coulomb titration using automated instruments.

1 Scope

This document specifies an alternative method of determining the total sulfur mass fraction of coal and coke by high-temperature combustion by Coulomb titration.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

No terms and definitions are listed in this document.

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