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A to Z of analysis
Commonly used nomenclature
| l or L |
Volume measurement - litre |
| ml |
Volume measurement - millilitre (one thousandth of litre) |
| m3/d |
Volume measurement - cubic metre per day (one cubic metre = 1000 litres). |
| Ml/d |
Volume measurement - mega litre per day (one Ml/d is equivalent to 1,000 m3 /d or to 220,000 gallon/d). |
| mg/l |
milligram per litre (one thousandth of a gram per litre [10-3g per litre] ) |
| µg/l |
microgram per litre (one millionth of a gram per litre [10-6g per litre] ). |
| ng/l |
nanogram per litre (one thousandth millionth of a gram per litre [10-9g per litre] ). |
| mg/kg |
milligram per kilogram (one thousandth of a gram per kilogram). |
| °C |
Temperature in degrees centigrade |
| < |
Less than |
| > |
More than |
| µS/cm |
Conductivity – Micro Siemens per square centimetre (expressed at 20° or 25° C) |
| NTU |
Turbidity as Nephelometric Turbidity Units |
| deg Hazen |
Colour - on a scale defined by a standard solution of Chloroplatinic acid / Cobaltous chloride, know as degrees Hazen. |
| CFU |
Microbiological term for Colony Forming Units |
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