BS ISO 9682-2:2006

Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sampling and Samples
  6.1 Laboratory sample
  6.2 Preparation of predried test samples
7 Procedure
  7.1 Number of determinations
  7.2 Test portion
  7.3 Blank test and check test
  7.4 Calibration
      7.4.1 Samples containing more than 0,1 % (by mass)
            of manganese
      7.4.2 Samples containing less than 0,1 % manganese
  7.5 Determination
      7.5.1 Decomposition of the test portion
      7.5.2 Treatment of the residue
      7.5.3 Treatment of the test solution
      7.5.4 Spectrophotometric measurements
8 Expression of results
  8.1 Calculation of mass fraction of manganese
  8.2 General treatment of results
      8.2.1 Repeatability and permissible tolerance
      8.2.2 Determination of analytical result
      8.2.3 Between-laboratories precision
      8.2.4 Check for trueness
      8.2.5 Calculation of final results
  8.3 Oxide factor
9 Test report
Annex A (normative) Flowsheet of the procedure for the
        acceptance of analytical values for test samples
Annex B (informative) Derivation of repeatability and
        permissible tolerance
Annex C (informative) Precision data obtained by
        international analytical trials

Describes a spectrophotometric method using sodium periodate for the determination of the mass fraction of manganese in iron ores. This method is applicable to a mass-fraction range of 0,02 % to 8 % of manganese in natural iron ores, and iron ore concentrates and agglomerates, including sinter products.

This part of ISO9682 specifies a spectrophotometric method using sodium periodate for the determination of the mass fraction of manganese in iron ores.

This method is applicable to a mass-fraction range of 0,02%to 8%of manganese in natural iron ores, and iron ore concentrates and agglomerates, including sinter products.