Test Procedures
NITRATE-NITROGEN, LOW RANGE
CADMIUM REDUCTION METHOD • CODE 3649-SC
QUANTITY
CONTENTS
CODE
2 x 60 mL
* Mixed Acid Reagent
*V-6278-H
5 g
* Nitrate Reducing Reagent
*V-6279-C
1
Spoon, 0.1 g, plastic
0699
1
Dispenser Cap
0692
*WARNING:
Reagents marked with an * are considered to be potential health hazards. To
view or print a Safety Data Sheet (SDS) for these reagents go to www.lamotte.com.
Search for the four digit reagent code number listed on the reagent label, in the contents
list or in the test procedures. Omit any letter that follows or precedes the four digit code
number. For example, if the code is 4450WT-H, search 4450. To obtain a printed copy,
contact LaMotte by email, phone or fax.
Emergency information for all LaMotte reagents is available from Chem-Tel:
(US, 1-800-255-3924) (International, call collect, 813-248-0585).
Nitrogen is essential for plant growth, but the presence of excessive amounts in water
supplies presents a major pollution problem. Nitrogen compounds may enter water as
nitrates or be converted to nitrates from agricultural fertilizers, sewage, industrial and
packing house wastes, drainage from livestock feeding areas, farm manures and legumes.
Nitrates in large amounts can cause “blue babies” (methemoglobinemia) in infants less
than six months of age. Nitrate concentration is an important factor to be considered in
livestock products, where, in addition to causing methemoglobinemia, it is responsible
for many other problems. Nitrates in conjunction with phosphate stimulate the growth of
algae with all of the related diffi
culties associated with excessive algae growth.
U.S. Public Health Service Drinking Water Standards state that 10 ppm nitrate nitrogen
should not be exceeded. To the sanitary and industrial engineer, concentrations of less
than 1 ppm are acceptable.
SMART Spectro 2 Test Procedures 05.02.16
NITRATE-NITROGEN
, LOW RANGE
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