Skip to content
Please enter a keyword to search

  • 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

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  11-07-2017

    Publisher:  British Standards Institution

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    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.

    Scope - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Committee W/-
    Development Note Supersedes BS ISO 9686. (07/2017)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    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
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective