LaMotte SMART 2 - Manual (Page 85)

CALCIUM & MAGNESIUM (TOTAL)
HARDNESS–UDV
UNIT DOSE VIALS • CODE 4309-H
QUANTITY CONTENTS
CODE
1 Calcium Hardness Unit Dose Vials, 10 pouches 4309-H
Equipment needed but not supplied:
STANDARD ACCESSORY PACKAGE
· CODE 1961
1 Package of 3 Vials (empty) 0156
1 Syringe, 3 mL, plastic 1184
1 Foil Storage Bag 9467
Or:
ADVANCED ACCESSORY PACKAGE
· CODE 1962
1 Pipettor, 3 mL 30528
1 Pipet Tips (0-5 mL) 30695
1 Cuvette Rack 31695
1 Package of 3 Vials (empty) 0156
1 Foil Storage Bag 9467
APPLICATION: Drinking and surface waters; swimming pool water.
RANGE: 0–400 ppm as CaCO
3
Total Hardness
METHOD: Calcium and magnesium react in a strongly buffered medium
with an indicator to develop a pale purple color in
proportion to the concentration.
SAMPLE
HANDLING &
PRESERVATION: Samples should be analyzed as soon as possible after
collection. If storage is necessary, add 0.5 mL of 20 %
hydrochloric acid per 100 mL of sample. However, the added
acid will have to be neutralized with NaOH before testing.
INTERFERENCES: Heavy metals will interfere.
Smart2 TEST PROCEDURES 2.04 Calcium & Magnesium (Total) Hardness–UDV 1/2