LaMotte AG-104 Salt Water Aquarium - Manual (Page 13)

pH
QUAN TITY CON TENTS CODE
30 mL Cresol Red Indicator 2212-G
1 Test Tube, 5 mL, glass 0230
1 Cresol Red Comparator, 7.7 - 8.4 2165-01
Pro ce dure
1. Rinse the test tube with the sample water, then refill the tube to the
5 mL line.
2. Add 8 drops of Cresol Red Indicator (2212) to the sample, one drop
at a time, holding the dropper bottle vertically to dispense uniformly
sized drops.
3. Cap the tube and invert several times to mix the contents.
4. Insert test tube into the Cresol Red Comparator (2165-01). Match
sample color to a color standard. Record as pH.
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