ISO 4701:2019 铁矿石和直接还原铁 筛分法测定粒度分布

标准编号：ISO 4701:2019

中文名称：铁矿石和直接还原铁 筛分法测定粒度分布

英文名称：Iron ores and direct reduced iron — Determination of size distribution by sieving

发布日期：2019-04

标准范围

This document specifies the methods to be employed for determination of size distributions by sieving 
of iron ore and direct reduced iron (excluding briquetted iron), utilizing sieves having aperture sizes 
of 36 µm or larger. The size distribution is expressed in terms of mass and percentage mass, passed or 
retained on selected sieves. The purpose of this document is to provide a basis for any testing of iron 
ore and direct reduced iron involving size determination for use by contracting parties in the sale and 
purchase of these materials.
When this document is used for comparative purposes, the concerned parties will agree on the selection 
of the detailed method to be employed in order to eliminate sources of subsequent controversy.

标准预览图