DelAgua OXFAM-DELAGUA, User Manual

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OXFAM-DELAGUA Water Testing Kit — Users Manual
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3. Take a water sample with the
non-sterile vacuum cup. Rinse the cup
twice with the sample water before
taking the sample. Analyse the sample
for chlorine residual and turbidity
using the methods in sections 5.2 and
5.3.
4.
If the chlorine residual and turbidity
results suggest that there is a risk of
microbiological contamination (see
Section 5.1), then take a second
sample for bacteriological analysis
using the sterile sample cup.
4.2 Sampling from a Lake, Reservoir or other Surface Water Source
1.
Where there is safe and adequate
access to the source it may be
possible to take samples by hand.
2. Grasp the sample cup firmly, keeping
your fingers clear of the top of the
cup to avoid contamination, and dip
the open mouth of the cup into the
water.
3. Submerge the cup about 30cm below
the surface of the water and scoop up
the water sample. This scooping
action ensures that no external
contamination enters the sample cup.
4. Lift the sample cup carefully and place on a clean surface where it cannot be
knocked over.
Take a sample for bacteriological analysis
using the sterile sample cup
Take sample from approximately 30cm
below the surface