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AWQC - Analyses - Inorganic Chemistry & Waste Water - Analytical Services - Physical Testing
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Physical Testing
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Instruments:
- pH Meters
- Conductivity Meter
- UV VIS Spectrophotometer
- Turbidimeter
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ANALYTE |
UNITS |
REPORTING LIMIT |
| Alkalinity |
mg/L |
4 |
| Bicarbonate |
mg/L |
4 |
| Carbonate |
mg/L |
4 |
| Colour - Apparent |
HU |
1 HU |
| Colour - True |
HU |
1 HU |
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|
uS/cm |
1 |
| Oxygen - Dissolved |
mg/L |
0.1 |
| pH |
pH units |
0.1 pH units |
| Temperature |
°C |
- |
| TDS (by EC) |
mg/L |
1 |
| TDS (by evap.) |
mg/L |
1 |
| Turbidity |
NTU |
0.1 NTU |
| UV Transmission - filtered |
% |
0.10% |
| UV Transmission - unfiltered |
% |
0.10% |
| Ash |
% |
0.01% |
| Suspended Solids |
mg/L |
1 |
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% |
0.01% |
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Volatile Solids |
% |
0.01% |
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Volatile Suspended Solids |
mg/L |
1 | |
Conductivity, Salinity, and pH
These simple, but important parameters are measured regularly using pH and conductivity meters. Conductivity provides a rapid estimation of the total dissolved solids or salinity, which is important in assessing the suitability of water for various uses. pH is a measure of whether a water is acidic, alkaline or neutral. Adjustment of pH is important for the control of corrosion and the optimisation of the disinfection process.
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Colour & Turbidity
Both Colour & Turbidity are optical parameters, important for the monitoring of drinking water, environment and waste discharge.
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Hardness
Derived sum of Calcium and Magnesium. An indicator of the ability of water to precipitate soap. Hard Water, wtih high levels of calcium & magnesium, has an undesirable taste, inhibits the lathering of soap and causes 'scaling" on boilers, hotwater systems & kettles. Soft water lathers, tastes better and does not cause scaling.
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