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PD ISO/TR 9686:2017

Current
Current

The latest, up-to-date edition.

Direct reduced iron. Determination of carbon and/or sulfur. High-frequency combustion method with infrared measurement
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

07-11-2017

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling and samples
8 Procedure
9 Expression of results
10 Test report
Annex A (informative) - Crucible loading sequence
Annex B (informative) - Flowsheet of the procedure for
        the acceptance of analytical values for test samples
Annex C (informative) - Features of commercial HF
        combustion/infrared sulfur analysers
Annex D (informative) - Derivation of repeatability and
        permissible tolerance formulae
Annex E (informative) - Precision data obtained by
        international analytical trials
Bibliography

Describes a method for the determination of the mass fraction of carbon and/or sulfur in direct reduced iron by infrared measurement after high-frequency combustion.

This document specifies a method for the determination of the mass fraction of carbon and/or sulfur in direct reduced iron by infrared measurement after high-frequency combustion.

This method is applicable to mass fractions of carbon between 0,05% and 2,5%, and/or mass fractions of sulfur between 0,001% and 0,05% in direct reduced iron.

Committee
W/-
DevelopmentNote
Supersedes BS ISO 9686. (07/2017)
DocumentType
Standard
Pages
24
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO/TR 9686:2017 Identical

ISO 10835:2007 Direct reduced iron and hot briquetted iron Sampling and sample preparation
ISO 1042:1998 Laboratory glassware One-mark volumetric flasks
ISO 7550:1985 Laboratory glassware — Disposable micropipettes
ISO 7764:2006 Iron ores Preparation of predried test samples for chemical analysis
ISO Guide 35:2017 Reference materials Guidance for characterization and assessment of homogeneity and stability
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method

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