Yes, DPD is a color matching test where you match different shades of red to a color comparator, FAS-DPD is a titiration test where you add drops until the sample turns from red to colorless.
Re: Question on how to match color on drop test kit
Yes, DPD is a color matching test where you match different shades of red to a color comparator, FAS-DPD is a titiration test where you add drops until the sample turns from red to colorless.
Retired pool store and commercial pool maintenance guy.
Posting Permissions
Reply With Quote
Bookmarks