Reference number
ISO 4696-1:2007(E)
汇报工作范文
© ISO 2007
INTERNATIONAL
STANDARD ISO 4696-1
Second edition
2007-10-15
Iron ores for blast furnace feedstocks —
Determination of low-temperature
reduction-disintegration indices by static
method —个性与共性
纸盒怎么折Part 1:
Reduction with CO, CO 2, H 2 and N 2
Minerais de fer pour charges de hauts fourneaux — Détermination des
indices de désagrégation par réduction à bas température par
méthode statique —
Partie 1: Réduction avec CO, CO 2, H 2 et N 2
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© ISO 2007 – All rights rerved
ISO 4696-1:2007(E)
© ISO 2007 – All rights rerved iii
Contents Page .iv v 1
<.1 2
1 3
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Terms 1 4
<2 5
Sampling, sample preparation and preparation of 2 6婴儿歌
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3 8
<.4 9
Expression 5 10
6 11 Verification .. (7)
Annex A (normative) Flowsheet of the procedure for the acceptance of test results (11)
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ISO 4696-1:2007(E)
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Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be reprented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates cloly with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 4696-1 was prepared by Technical Committee ISO/TC 102, Iron ore and direct reduced iron, Subcommittee SC 3, Physical testing.
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This cond edition cancels and replaces the first edition (ISO 4696-1:1996), which has been revid to homogeni with other physical test standards.
ISO 4696 consists of the following parts, under the general title Iron ores for blast furnace feedstocks — Determination of low-temperature reduction-disintegration indices by static method:
⎯Part 1: Reduction with CO, CO2, H2 and N2
阿拉曼战役⎯Part 2: Reduction with CO and N2
iv © ISO 2007 – All rights rerved
ISO 4696-1:2007(E)
Introduction
This part of ISO 4696 concerns one of a number of physical test methods that have been developed to measure various physical parameters and to evaluate the behaviour of iron ores, including reducibility, disintegration, crushing strength, apparent density, etc. This method was developed to provide a uniform procedure, validated by collaborative testing, to facilitate comparisons of tests made in different laboratories. The results of this test should be considered in conjunction with other tests ud to evaluate the quality of iron ores as feedstocks for blast furnace process.
This part of ISO 4696 may be ud to provide test results as part of a production quality control system, as a basis of a contract, or as part of a rearch project.
© ISO 2007 – All rights rerved v
