1200 COLO RIMETER
CHLO RINE
DPD TABLET TEST
MODEL 1200-CL · CODE 3670-01
QUANTITY CONTENTS CODE
100 *Chlorine DPD #1 Instrument Grade Tablets *6903A-J
100 *Chlorine DPD #3 Instrument Grade Tablets *6197A-J
1 Colorimeter Tubes, w/caps,set of 6 0290-6
2 Tablet Crushers 0175
1 Water Sample Collecting Bottle 0688
1 1200 Colorimeter for Chlorine DPD 26728
*WARNING: Reagents marked with an * 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.
INTRODUCTION
Chlorine is added to water to kill bacteria and other disease-producing organisms,
control algae, and remove undesirable odors and colors. Chlorine added to water quickly
forms hypochlorous acid, HClO, also known as Free Avai lable Chlorine, the active
ingredient responsible for chlorine*s sanitizing capabilities. Free Available Chlorine
combines with impurities in the water to form chloramines and other organic nitrogen
compounds. In combined form, its sanitizing capability diminishes, and higher levels of
chlorine are necessary to achieve effective sanitation.
Therefore, it is essential to chlorinate to the point of establishing a Free Available
Chlorine Residual, and then to maintain that residual at a recommended level. The
LaMotte DPD tablet test method distinguishes levels of Free Availabl e Chlorine,
Combined Chlorine, and Total Residual Chlorine, using a single test sample.
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