Step Rapid Test
1 Collect Sampl Add 5 Drops of De-Cholorinating Solution
2 Place Ampoule Tip side down in sample
3 Gently push tip against sample container to break
4 Allow ampoule to fill while keeping it in the sample
5 Remove ampoule from sample and gently rock to mix
6 Incubate at 37 oC
7 Test Ampoule Every Hour for up to 24 hours
8 Interpret results:
- Record reaction time
- Observe ampoule color change
- Measure absorbance using Hach DR Series Photometer
Time response Record the elapsed time of the first noticeable color change and compare with the time chart to estimate bacterial level.
Color change Compare the observed color with the reference color chart to estimate bacterial level.