ISO 924:2024 石炭精製プラント — フローシートの原則と規約 | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 27, Coal and Coke.

This third edition cancels and replaces the second edition (ISO 924:1989), of which it constitutes a minor revision.

The main changes are as follows:

• changes to update other nominated standards in the text;
• minor changes to some units and ISO normal set up;
• the list of informative terms in Clause 3 were deleted.

Introduction

At various stages in the design of a complete plant, it is necessary to illustrate by flowsheets the process steps covering the operations to which the raw coal will be subjected in the preparation plant. In order that these may be more readily and universally understood, it is desirable that flowsheets should conform to a standard pattern and that various conventions should be well understood and adopted.

1 Scope

This document sets out principles and conventions for use in the preparation of basic process and equipment flowsheets for the design of a coal preparation plant.

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

For the purposes of this document, the terms and definitions given in ISO 1213-1 and the symbols in ISO 561 apply.

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