LaMotte CALCIUM AND TOTAL HARDNESS IN WATER TEST KIT User Manual

CAL CIUM AND TO TAL HARD NESS

IN WA TER TEST KIT

CODE 7171-01-CA

QUANTITY CONTENTS CODE

50 Calcium Indicator Tablets T-5250-H 30 mL * Sodium Hydroxide Reagent with Metal Inhibitor *4259-G 2 x 30 mL *Hardness Reagent #5 *4483-G 30 mL *Hardness Reagent #6 Solution *4485-G 60 mL Hardness Titrant 10 2783WT-H 1 Test Tube, 5-10-15-20-25 mL, plastic, w/cap 0715

*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 e-mail, phone or fax.

To order individual reagents or test kit components, use the specified code number.

PRO CE DURE

1. This test allows the analyst to use different sample volumes to vary equivalencies. Rinse test tube with sample water. Fill with desired sample size selected from table.

SAMPLE SIZE EQUIVALENCE 25 mL 1 drop = 10 ppm 10 mL 1 drop = 25 ppm 5 mL 1 drop = 50 ppm

2. Add *Hardness Reagent #5 (4483) as follows:

25 mL 10 drops 10 mL 8 drops 5 mL 5 drops

Swirl to mix.

3. Add *Hardness Reagent #6 Solution (4485) as follows:

25 mL 5 drops 10 mL 3 drops 5 mL 2 drops

Swirl to mix. Solution should be red.

4. While swirling tube, add Hardness Titrant 10 (2783WT) one drop at a time, until color changes to blue. Count the number of drops added. Hold bottle vertically.

5. Multiply number of drops used in Step 4 as follows:

25 mL multiply by 10 10 mL multiply by 25 5 mL multiply by 50

Record the result as ppm Total Hardness as CaCO3.

CAL CIUM HARD NESS

1. Rinse test tube with sample water. Fill with desired sample size selectd from table above.

2. Add *Sodium Hydroxide with Metal Inhibitor (4259) as follows: 25mL 12 drops 10 mL 5 drops 5 mL 3 drops

3. Add one Calcium Hardness Indicator Tablet (T-5250). Swirl to mix. Solution should be red.

4. While swirling tube, add Hardness Titrant 10 (2783WT) one drop at a time, until color changes to blue. Count the number of drops added. Hold bottle vertically.

5. Multiply number of drops used in Step 4 as follows:

25 mL multiply by 10 10 mL multiply by 25 5 mL multiply by 50

Record the result as ppm Calcium Hardness as CaCO

To determine Magnesium Hardness, subtract Calcium Hardness from Total Hardness.

LaMOTTE COM PANY

Helping Peo ple Solve An a lyt i cal Challenges

PO Box 329 • Chestertown • Mary land • 21620 • USA

800-344-3100 • 410-778-3100 (Out side U.S.A.) • Fax 410-778-6394

Visit us on the web at www.lamotte.com

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