WATER
Chemical water analysis
Waters in nature are not in pure form, contain dissolved minerals and impurities in suspension. Waters used in agricultural and industrial processes can contain polluting agents. Chemical water analysis allows to measure minerals and present compounds, dissolved or in supension. The quality of waste, effluent waters can be determined by quantitative analyses in the laboratory, such as:
|
Parameter |
ASTM/EN Method |
ISO Method |
Units |
|
Oils & Grease |
STD Method |
- |
mg/l |
|
Free Alkalinity |
|
- |
mg/l |
|
Total Alkalinity |
|
- |
mg/l |
|
Aerobic Bacteriums at 22 ºC |
|
- |
Col/100ml |
|
Aerobic Bacteriums at 37ºC |
|
- |
Col/100ml |
|
Carbonates |
|
- |
mg/ l |
|
Cyanides |
Spectrofotometry |
- |
µg/ l |
|
Residual Chlorine in water |
|
- |
mgCl2/l |
|
Chlorides |
ISO 0981 |
- |
gr/l |
|
Chlorides |
ISO 3197 |
- |
mg/l |
|
Chlorides |
Titrimetry |
- |
mg/l |
|
Clostridium sulf.-Redct. |
|
- |
Col/100ml |
|
CO2 free |
Acidmetry |
- |
mg/l |
|
Faecal Coliforms |
|
- |
Col/100m |
|
Total Coliforms |
|
- |
Col/100m |
|
Colour in water |
Scale pt-co |
- |
escala |
|
Conductivity |
|
- |
µS/cm |
|
Total Chromium |
Oxidat.+ colourimet |
- |
mg/l |
|
Chrome VI |
Colourimetry |
- |
µg/l |
|
DBO 5 |
|
- |
mgO 2/l |
|
DQO |
|
- |
mgO 2 /l |
|
Total Hardness |
Complexometry |
- |
mg/l |
|
Faecal Streptococcus |
|
- |
Col/100m |
|
Phenols |
|
- |
µg/l |
|
Fluorine |
Specific Electrode |
- |
µg/l |
|
Actives Phospates |
|
- |
mg/l |
|
Total Phospates |
|
- |
mg/l |
|
Phosphorus |
|
- |
µg/l |
|
H Sulphated |
|
- |
mg/l |
|
Hydrocarbons |
HPGC |
- |
µg/l |
|
Suspended solids |
Filtration |
- |
mg/l |
|
Nitrates |
|
- |
mgNO3/l |
|
Nitrites |
|
- |
mgNO2/l |
|
Ammoniacal Nitrogen |
|
- |
mg/l |
|
Smell |
|
- |
- |
|
Oxidability |
|
- |
mgO2/l |
|
pH |
Phmetry |
- |
- |
|
Silica |
Spectrofotometry |
- |
mg/l |
|
Solved Total Solids |
|
- |
mg/l |
|
Suspended Total Solids |
|
- |
mg/l |
|
Sulphates |
|
- |
mg/l |
|
Sulphide |
Colourimetry |
- |
mg/l |
|
Sust. extr. chloroform |
Extraction |
- |
mg/l |
|
Temperature |
Thermometry |
- |
ºC |
|
Turbidez |
U.N.F |
- |
UNF |
|
Zinc |
Spectrofotometry |
- |
µg/l |
Further information
Castellano