ISO 2926:2013 一次アルミニウムの製造に使用される酸化アルミニウム— 45 µmから150 µmの範囲の粒子サイズ分析—電気成形ふるいを使用する方法 | ページ 2

Foreword

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The committee responsible for this document is ISO/TC 226, Materials for the production of primary aluminium.

This third edition cancels and replaces the second edition (ISO 2926:2005), which has been technically revised to reflect modern industry practice. The major changes are:

• recommended effective aperture tolerance limits have been added;
• sieves are cleaned by brushing rather than using an ultrasonic bath;
• the mass of sample to be sieved is 50 g;

Introduction

This International Standard is based on AS 2879.6-1995 prepared by Standards Australia.

1 Scope

This International Standard specifies a dry sieve method using electroformed sieves for determining the mass distribution of the particle sizes in aluminium oxide used for the production of primary aluminium.

This method is applicable to calcined aluminium oxide containing a maximum of 20 % mass fraction of particles having a mean diameter exceeding 150 µm, and containing a maximum of 15 % mass fraction of particles having a mean diameter less than 45 µm.

This method is not applicable to the use of woven wire sieves.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

Bibliography