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ISO 4695:2021

Iron ores for blast furnace feedstocks — Determination of the reducibility by the rate of reduction index

General information

Valid from 11.10.2021
ICS Groups
73.060.10 Iron ores
Directives or regulations
None

Standard history

Status
Date
Type
Name
11.10.2021
Main
ISO 4695:2021
20.08.2015
Main
ISO 4695:2015
This document specifies a method to provide a relative measure for evaluating the extent to and ease with which oxygen can be removed from iron ores, when reduced under conditions resembling those prevailing in the reduction zone of a blast furnace.
This document is applicable to lump ores, sinters and hot-bonded pellets.

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Paper
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Standard monitoring
English (PDF 780 KB)

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ISO 5416:2006

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ISO 3087:2011

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ISO 3085:2019

Iron ores -- Experimental methods for checking the precision of sampling, sample preparation and measurement
Newest version Valid from 05.08.2019

Standards designation

EVS Estonian standard
EN European standard (published by an CEN or CENELEC)
EN ISO International standard adopted as an European standard
ISO International Organization for Standardization’s standard
IEC International Electrotechnical Commission’s standard
HD CENELEC’s harmonisation document
   
EVS-EN European standard implemented in Estonia
EVS-EN ISO International standard adopted in Europe and implemented in Estonia
EVS-EN ISO/IEC International standard/International electrotechnical standard adopted in Europe and implemented in Estonia
EVS-IEC International electrotechnical standard implemented in Estonia
EVS-ISO International standard implemented in Estonia
   
A, AMD amedment
+A a full standard plus the amendment
/A only amendment
COR, AC corrigendum
+COR a full standard plus the corrigendum
NA national annex
+NA a full standard plus the national annex
/NA only national annex
TS technical specification
TR technical report
CWA agreement, developed by a CEN or CENELEC
prEVS-EN (etc) draft standard
   
et the standard is in Estonian only
en the standard is in English only
et-en the standard is in Parallel text Estonian-English