LaMotte Water Analysis Kit for Home Brewers - Manual (Page 8)

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TOTAL ALKALINITY
Add 3 drops of Total
Alkalinity Indicator
(2786) and swirl
to mix. Solution will
turn Green .
Hold the *Sulfuric Acid, 0.12N (7748WT)
vertically to add one drop at a time
( swirling and counting after each drop), until
color changes completely from Green to Red and
remains for 30 seconds .
Brush and rinse tube promptly after testing.
ALKALINITY TEST (as CaCO
3
)
RESIDUAL ALKALINITY
Residual Alkalinity =
Total Alkalinity - [Calcium Hardness + (Magnesium Hardness X 0.5)]
3.5
All values are as ppm CaCO
3
Multiply number of drops:
25 mL multiply x 10
10 mL multiply x 25
Record as ppm Total Alkalinity (CaCO
3
ppm).
Rinse tube promptly after testing.
To convert to bicarbonate (HCO
3
)
multiply the test result by 1.2
Fill tube ( 0715) to the line
with sample water.
Sample
Size
Equivalence
(ppm per drop)
25 mL 1 drop = 10 ppm
10 mL 1 drop = 25 ppm
QUANTITY CONTENTS CODE
15 mL Total Alkalinity Indicator 2786-E
30 mL *Sulfuric Acid, 0.12N *7748WT-G
1 Test Tube, 5-10-25 mL, plastic, w/cap 0715