BS ISO 11535:2006

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 Adjustment of spectrometer
      7.4.3 Measurements
8 Calculation of results
  8.1 Calibration graph
  8.2 Correction of spectral interference
  8.3 Standardization of calibration graph
      (drift correction)
  8.4 General treatment of results
      8.4.1 Repeatability and permissible tolerances
      8.4.2 Determination of analytical result
      8.4.3 Check for trueness
      8.4.4 Calculation of final result
  8.5 Oxide factors
9 Test report
Annex A (informative) Suggested calibration solutions
Annex B (normative) Plasma-spectrometer performance tests
Annex C (normative) Flowsheet of the procedure for the
        acceptance of analytical values for test samples
Annex D (informative) Derivation of repeatability and
        permissible tolerance equations
Annex E (informative) Precision data obtained by
        international analytical trials

Describes a method for the determination of aluminium, calcium, phosphorus, magnesium, manganese, silicon and titanium in iron ores by inductively coupled plasma atomic emission spectrometry (ICP-AES).

This International Standard specifies a method for the determination of aluminium, calcium, phosphorus, magnesium, manganese, silicon and titanium in iron ores by inductively coupled plasma atomic emission spectrometry (ICP-AES). This method is applicable to the mass-fraction ranges given in Table1, in natural iron ores, iron ore concentrates and agglomerates, including sinter products. Table1 Mass-fraction ranges Element Range of mass fractions % Al 0,07 to 3,30 Ca 0,012 to 6,80 Mg 0,008 to 1,90 Mn 0,012 to 1,70 P 0,011 to 1,60 Si 0,44 to 9,40 Ti 0,018 to 0,17