Water quality
- 13/13.060/13.060.01 Water quality in general
- 13/13.060/13.060.10 Water of natural resources
- 13/13.060/13.060.20 Drinking water
- 13/13.060/13.060.25 Water for industrial use
- 13/13.060/13.060.30 Sewage water
- 13/13.060/13.060.45 Examination of water in general
- 13/13.060/13.060.50 Examination of water for chemical substances
- 13/13.060/13.060.60 Examination of physical properties of water
- 13/13.060/13.060.70 Examination of biological properties of water
- 13/13.060/13.060.99 Other standards related to water quality