BS ISO 9517:2007
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
31-05-2007
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 Blank test and check test
7.3 Temperature setting
7.3.1 Magnetic stirrer/hotplate
7.3.2 Laboratory hotplate
7.4 Preliminary tests
7.4.1 Electrode-system check test
7.4.2 Contamination check test
7.5 Test portion
7.6 Determination
7.6.1 Leaching of water-soluble chloride
7.6.2 Filtration
7.6.3 Treatment of the test solution
7.6.4 Measurement of electrode potential
7.6.5 Preparation of calibration graph
7.6.6 Measurement of chloride concentration
8 Expression of results
8.1 Calculation of mass fraction of water-soluble chloride
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 result
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) Graphical presentation of precision
data obtained by international analytical trials
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