Originally Posted by signman
The Place That Buy From Don't Have That Brand!! The Seatest Turns From Pink To Blue So They Say . But I Paint For A Living And It Don't Turn Blue !!! So They Say Purple At Best So I Have A Very Hard Time Reading It. I Find That Most Color Chips That Come With A Test Don't Even Come Close To The Test. I Can Get The Same Test From The Same Company And The Card Don't Match The The One From The Other Test. They Need A Better Panatone Deck.
The Salifert kits don't use paint chip cards for Ca and KH/Alk. It's a definite contrasting color change, after you see the change, you read the reagent left in the syringe and look up the value on a table. Their pH and NO3 kits uses a card and I hate paint chip cards too.......... That's what pushed me to get a pH monitor.