If you look at the DPD-FAS test, there are two ways to use it:
1) with 10ml of pool water. Then each drop of the re-agent represents .5 ppm
2) with 25ml of pool water. Then each drop of the re-agent represents .2ppm, allowing greater precision.
If you look at the DPD-FAS test, there are two ways to use it:
1) with 10ml of pool water. Then each drop of the re-agent represents .5 ppm
2) with 25ml of pool water. Then each drop of the re-agent represents .2ppm, allowing greater precision.
Carl
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