WATA Standard - Using the Sodium Hypochlorite Solution for Disinfection;Cleaning

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W If you needed to add 4 times the initial amount of chlorine, i.e. 20 mL (as
opposed to 5 mL) for 20 litres, that means that the water is too cloudy
for the sodium hypochlorite to act and your water must be filtered once
again (see section 4) and the chlorination process must be repeated.
W Store the WataBlue reagent away from light and at room temperature
(25°C). Carefully close the reagent bottle after each use in order to
prevent the liquid from oxidising. Do not exceed the expiration date.
Over time, its color may change to red/brown, without impairing the test
quality.
W We recommend conducting this test regularly, since water quality
can vary at different water sources. Similarly, the quantity of sodium
hypochlorite to add may vary according to season, by as much as twice
the quantity in the wet season as in the dry.
11. USING THE SODIUM
HYPOCHLORITE SOLUTION FOR
DISINFECTION/CLEANING
Disinfection is a process eliminating pathogenic organisms, designed to halt or
prevent infection by microorganisms.
PREPARING DISINFECTANT SOLUTIONS AT HOME
Use
Advised
concentration
of chlorinated
solution
Vol. of
water
Vol. of sodium
hypochlorite
equivalent to a
concentration
of 6 g/L
Procedure
Washing hands 0.5 g/L 10 1
Rub hands with the chlorinated
solution for 30 seconds; allow
to dry.
Floors (including
floors and walls
of latrines)
0.8 g/L 6 1
Wash with chlorinated solution;
leave in contact for 5 min., then
rinse
Washing food and
fresh vegetables
0.05 g/L 100 1
Soak food items in the chlorinated
solution for 5 min., rub, and then
rinse.
Dishwashing 0.5 g/L 10 1
Rinse the dishes in the
chlorinated solution and then
wash as usual.