PD ISO/TR 9686:2017
Current
The latest, up-to-date edition.
Direct reduced iron. Determination of carbon and/or sulfur. High-frequency combustion method with infrared measurement
Hardcopy , PDF
English
11-07-2017
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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.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes BS ISO 9686. (07/2017)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
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.
| 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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