LaMotte SULFITE IN WATER TEST KIT AB-SIT - Manual (Page 2)

PRO CE DURE
1.
Use a 1.0 mL pipet (0354) to add 2 mL of *Sulfite Reagent A
(7327) to an Erlenmeyer flask (0431).
2. Fill graduated cylinder (0418) to 50 mL mark with sample water.
Transfer to Erlenmeyer flask.
3. Use a second 1.0 mL pipet (0354) to add 1.0 mL of Sulfite Reagent
B (7328). Swirl to mix.
4. Fill buret (0427) with Sulfite Reagent C (7329). While gently
swirling flask, slowly add Sulfite Reagent C until sample turns a
faint but permanent blue. Record buret reading.
5. Multiply buret reading by 20. Record as ppm Sulfite.
EXAMPLE:
The endpoint color change occurred when the level
of liquid in the automatic buret column was at the 7.3 mL
graduation. The result of the test is:
7.3 x 20 = 146 parts per million
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