DIN ISO 15705:2003-01

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Interferences
6 Reagents
7 Apparatus
8 Sample collection and preservation
9 Preparation of tubes and instrument set-up
10 Analytical procedure for measurement of samples
11 Calculation of results
12 Expression of results
13 Test report
14 Precision
Annex A (informative) - Comparison between the COD method
                        according to ISO 6060 and the method
                        described in this International standard
Annex B (informative) - Hazards
Annex C (informative) - Information on the use of commercial
                        small-scale ST-COD test kits utilizing
                        photometric detection
Annex D (informative) - Low-range sealed-tube photometric method
                        (up to 150 mg/l)
Annex E (informative) - Low-range sealed-tube titrimetric method
                        (up to 150 mg/l)
Annex F (informative) - Screening test for samples with high
                        chloride concentrations
Annex G (informative) - Precision data
Bibliography

Provides a method for the determination of the chemical oxygen demand (ST-COD) using the sealed tube method. Applicable to any aqueous sample, which includes all sewage and waste waters.