ISO 334:2020 石炭とコークス—全硫黄の測定—エシュカ法 | 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 fourth edition cancels and replaces the third edition (ISO 334:2013), of which it constitutes a minor revision. The changes compared to the previous edition are as follows:

• updating of referenced documents;
• amending of Introduction;
• adding of the provision of terms and definitions.

Introduction

The objective of this document is to provide a reference method for determining the total sulfur content in coal and coke with Eschka method.

Instrumental methods for a more rapid determination of total sulfur are now available. If such a method is to be used, it is important to demonstrate that the method is free from bias, when compared to this reference method, and will give levels of repeatability and reproducibility which are the same as, or better than, those quoted for the reference method (see Clause 10).

1 Scope

This document specifies a reference method for determining the total sulfur content of hard coal, brown coals and lignites, and coke by the Eschka method.

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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