Calcium & magnesium (total) hardness–udv – LaMotte SMART 2 User 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