Classification
UPT - Water pollution control and measurement
23
UPCE - Water chemistry
15
UPW - Drinking water
4
CXW - Water and seawater desalination - chemistry and technology
3
UPN - Water protection, water quality, clean water
3
UCGE - Control of environmental pollution - analytical methods
2
UPC - Water - general aspects
2
UPTF - Organic pollutants in water
2
UPTN - Inorganic pollutants in water
2
CHRV - Water and its properties
1
CT - Chemical methods of materials analysis
1
CTYH - Sampling and sample preparation in chemical analysis
1
UPK - Water resources, water supply
1
UPTK - Volatile pollutants in water
1
URA - Soil chemistry
1
USA - Nonradioactive Waste - general aspects
1
USN - Waste water treatment
1
YEC - Law on waters
1