HANNA HI 3874 Nitrate Test Kit Instruction Manual
Contents
1. mg L limit as nitrogen has been imposed on drinking water NOTE mg L is equivalent to ppm parts per million Chemical Reaction Nitrates are reduced to nitrites in the presence of Cadmium The nitrites thus produced react with the reagent to yield an orange compound The amount of color developed is proportional to the concentration of nitrate present in the aqueous sample Instructions READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT e Fill the glass cuvet with 10 mL of the sample up to the mark 10 mL gt e Add 1 packet of HI 3874 0 Nitrate Reagent e Replace the cap L and shake vigorously for exactly 1 minute A deposit may remain but it will not affect measurement Time and manner of shaking can affect the results a e Wait for 4 minutes to allow the color to develop Remove the cap and fill the color comparator cube with 5 mL of the treated sample to the mark e Determine which color matches the solution in the cube and record the result in mg L or ppm of Nitrate nitrogen e It is better to match the color with a white sheet at about 10 cm behind the comparator e To convert the reading to mg L of Nitrate NO multiply the reading by a factor of 4 43 References Adaptation of the cadmium reduction method from Standard Methods for the Examination of Water and Wastewater 20 Edition 1998 Accessorie2. Instruction Manual HI 3874 Nitrate Test Kit IB HANNS instruments www hannainst com Dear Customer Thank you for choosing a Hanna Product Please read the instructions carefully before using the chemical test kit It will provide you with the necessary information for correct use of the kit Remove the chemical test kit from the packing material and examine it carefully to make sure that no damage has occurred during shipping If there is any noticeable damage notify your Dealer or the nearest Hanna office immediately Each kit is supplied with e HI 3874 0 Nitrate Reagent packets 100 pcs 1 glass cuvet e 1 color comparator cube Note Any damaged or defective item must be returned in its original packing materials 02 07 ISTR3874R2 Specifications Range 0 to 50 mg L ppm as NO N Smallest Increment 10 mg L ppm NO N Analysis Method Colorimetric Sample Size 10 mL Number of Tests 100 Case Dimensions 230x59x70 mm 9 0x2 3x2 8 Shipping Weight 156 g 6 0 oz Significance and Use Nitrate ions are present in trace amounts in surface water and in higher levels in some groundwater Nitrate is found only in small quantities in domestic wastewater but can reach higher concentration up to 30 mg L as nitrogen in the outflow of nitrifying biological treatment plants Excessive amounts can contribute to methaemoglobinemia infant death and adult illness In order to prevent this a 10
3. s HI 3874 100 replacement kit 100 tests HI 3874 99 color comparator cube for nitrate kit Safety Data Sheets The chemicals contained in this kit may be hazardous if improperly handled Read the relevant Safety Data Sheet before performing this test
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