LaMotte AG-104 Salt Water Aquarium - Manual (Page 3)

ALKALINITY
QUAN TITY CON TENTS CODE
100 BCG-MR Indicator Tablets T-2311-J
60 mL *Alkalinity Titration Reagent B *4493DR-H
1 Test Tube, 5-10-15 mL, glass w/cap 0778
1 Direct Reading Titrator, 0-200 Range 0382
*WARNING: Reagents marked with a * are considered to be potential health hazards.
To view or print a Material Safety Data Sheet (MSDS) for these reagents see MSDS
CD or www.lamotte.com. To obtain a printed copy, contact LaMotte by email, phone
or fax.
NOTE: Read Direct Reading Titrator Manual before performing test.
Pro ce dure
1. Fill the test tube (0778) to 5 mL line with sample water.
2. Add one BCG-MR Indicator Tablet (T-2311). Cap and shake until
dissolved. A blue-green color will develop.
3. Fill the Direct Reading Titrator (0382) with *Alkalinity Titration
Reagent B (4493DR). Insert Titrator into the center hole of the test
tube cap.
4. While gently swirling the tube, slowly depress plunger to titrate until
the blue-green color changes to pink. Read the test result directly
from the scale where the large ring on the Titrator meets the
Titrator barrel. Record results as Total Alkalinity in ppm (CaCO
3
).
Each minor division on Titrator scale = 4 ppm Total Alkalinity as
CaCO
3
.
EXAMPLE: Plunger tip is 3 minor divisions below line 140. The
test result is 140 plus (3 divisions x 4) equals 152 ppm.
5. If the plunger tip reaches the bottom line on the titrator scale (200
ppm) before the endpoint color change occurs, refill the titrator and
continue titration. When recording the test result, be sure to include
the value of the original amount of reagent dispensed (200 ppm).
When testing salt water aquariums, alkalinity may be called carbonate
hardness. Multiply ppm Alkalinity by 0.056 to convert to German
degrees of Hardness.
This test set provides Total Alkalinity readings only. For
comprehensive analysis of Phenolphthalein (P), Total (T), Hydroxide,
Carbonate, and Bicarbonate Alkalinity the Model WAT-MP-DR Test
Set, Code 4533-DR is recommended.
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