Plant Protocol » Environmental Science Methodology
Determination of Odour
Aim
To determine the odour of the given sample of water using human olfactory system.
Principle
The extent of odour present in a particular sample of water is measured by a term called odour intensity, which is
related with the threshold odour. The threshold odour number represents the dilution ratio at which odour is hardly
detectable.
Apparatus
- Measuring jar,
- Pipettes etc.
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Procedure
- Take a known volume (A) of odorous water in a measuring jar.
- Gradually add odour free distilled water to the sample. Addition of water is continued till the sample
just lost its odour.Note down the total volume.
Observation and Calculation
Results
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