BS ISO 11534:2006

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 Determination
        7.4.1 Decomposition of the test portion
        7.4.2 Treatment of the test solution
        7.4.3 Adjustment of atomic absorption spectrometer
        7.4.4 Atomic absorption measurements
        7.4.5 Preparation of calibration solutions
8 Expression of results
   8.1 Calculation of mass fraction of tin
   8.2 General treatment of results
        8.2.1 Repeatability and permissible tolerances
        8.2.2 Determination of the analytical result
        8.2.3 Between-laboratories precision
        8.2.4 Check for trueness
        8.2.5 Calculation of final result
   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 equations
Annex C (informative) Precision data obtained by international
                      analytical trials

Defines a flame atomic absorption spectrometric method for the determination of the mass fraction of tin in iron ores.

This International Standard specifies a flame atomic absorption spectrometric method for the determination of the mass fraction of tin in iron ores.

This method is applicable to mass fractions of tin between 0,001%and 0,015%in natural iron ores, iron ore concentrates and agglomerates, including sinter products.