tested it like a sample, added std up to the label, then reagent to top. shake, stand, back to sun, etc. zero. Checked a pool sample same way, got a measureable reading around 50. sooooo, bad standard?
anyone get zero analyzing cya standard?
- Thread starter pookiesunshine
- Start date
tft test kits. they are sending me another standard even though they have had no other reports; are checking with Taylor.
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