TEST INSTRUCTIONS - Geotech Environmental Equipment
TEST INSTRUCTIONS - Geotech Environmental Equipment
TEST INSTRUCTIONS - Geotech Environmental Equipment
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CALCIUM & MAGNESIUM (TOTAL)<br />
HARDNESS–UDV<br />
UNIT DOSE VIALS CODE 4309-H<br />
QUANTITY CONTENTS CODE<br />
1 Calcium Hardness Unit Dose Vials, 10 pouches 4309-H<br />
<strong>Equipment</strong> needed but not supplied:<br />
STANDARD ACCESSORY PACKAGE CODE 1961<br />
1 Package of 3 Vials (empty) 0156<br />
1 Syringe, 3 mL, plastic 1184<br />
1 Foil Storage Bag 9467<br />
Or:<br />
ADVANCED ACCESSORY PACKAGE CODE 1962<br />
1 Pipettor 30528<br />
1 Pipet Tips (0-5 mL) 30695<br />
1 Cuvette Rack 31695<br />
1 Package of 3 Vials (empty) 0156<br />
1 Foil Storage Bag 9467<br />
APPLICATION: Drinking and surface waters; swimming pool water.<br />
RANGE: 0–400 ppm as CaCO3 Total Hardness<br />
METHOD: Calcium and magnesium react in a strongly buffered medium<br />
with an indicator to develop a pale purple color in<br />
SAMPLE<br />
HANDLING &<br />
PRESERVATION:<br />
proportion to the concentration.<br />
Samples should be analyzed as soon as possible after<br />
collection. If storage is necessary, add 0.5 mL of 20 %<br />
hydrochloric acid per 100 mL of sample. However, the added<br />
acid will have to be neutralized with NaOH before testing.<br />
INTERFERENCES: Heavy metals will interfere.<br />
Smart2 <strong>TEST</strong> PROCEDURES 2.04 Calcium & Magnesium (Total) Hardness–UDV 1/2