Clean, safe and adequate water is a critical factor for the survival of every living organism and the function of ecosystems, societies and economies as well. Monitoring of water quality has become a necessity since the increase of the population, the industrial and agricultural activities and climatic alterations have caused major changes of groundwater.
The knowledge of the physicochemical properties of water is essential for its quality, processing and distribution.
 

PARAMETER	METHOD	ACCREDITATION
pH	APHA 4500-H
Conductivity	APHA 2510 B
Alkalinity	APHA 2320 B
Taste	APHA 2160 B
Dissolved Oxygen	APHA 4500-O G
Redox	APHA 2580
Turbidity	APHA 2130 B
Fats and Oils	APHA 5520 D
Total Suspended Solids	APHA 2540 D
Total Dissolved Solids	APHA 2540 C
Total Volatile Solids	APHA 2540 E
Total Solids	APHA 2540 B
Total Organic Carbon	APHA 5310 C
Oxidisability	ΕΛΟΤ 827
Odour	APHA 2150 B
Volatile Dissolved Solids	APHA 2540 E
Hardness	ΕΛΟΤ 170/1980
Colour	APHA 2120 C
Total nitrogen	APHA 4500-N, C
Kjeldahl nitrogen	APHA 4500-Norg B
Ammonium	Ο.304 / UV-VIS
Carbonates	APHA 2320 B
Bicarbonates	APHA 2320 B
Bromates	Ο.624 / LC-MS-MS
Brominated	Ο.628/Ion Chromatography
Sulfates	Ο.628/Ion Chromatography
Sulfites	APHA 4500-SO3
Total Cyanides	Ο.309 / UV-VIS
Nitrate	Ο.628/Ion Chromatography
Nitrite	Ο.301 / UV-VIS
Silicates	APHA 4500-SiO2 C
Hydrogen Sulfide	APHA 4500-S² Η
Fluorides	Ο.628/Ion Chromatography
Phosphates	Ο.628/Ion Chromatography
Total Phosphorus	APHA 4500-P D
Chlorides	Ο.628/Ion Chromatography
Residual Chlorine	Ο.312