Nitrite – LaMotte AG-103 Fresh Water Aquarium User Manual

Page 14

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NITRITE

QUANTITY

CONTENTS

CODE

30 mL

Nitrite Nitrogen Reagent A

7423-G

60 mL

*Nitrite Nitrogen Reagent B

*7424-H

10 g

Nitrite Nitrogen Reagent C-R

7797-D

3

Test Tubes, 10 mL, glass, w/cap

0843

1

Pipet, 1.0 mL, plastic

0354

1

Pipet, plain, plastic, w/cap

0392

1

Spoon, 0.15 g, plastic

0727

1

Distilled Water Ampoule, 5 mL

2748

1

Axial Reader

2071

1

Nitrite Comparator, 0.02-0.3 ppm

6761

*WARNING:

Reagents marked with a * are considered hazardous substances.

Material Safety Data Sheets (MSDS) are supplied for these reagents. For your
safety, read label and accompanying MSDS before using.

NOTE:

Read Axial Reader Manual before performing test.

PRO CE DURE
1.

Fill three test tubes (0843) to the 10 mL line with sample water. Insert
two tubes as blanks in the Axial Reader.

2.

Use the plain pipet (0357) to add 10 drops of Nitrite Nitrogen Reagent
A (7423) to third test tube.

3.

Use the 1.0 mL pipet (0354) to add 1.0 mL of *Nitrite Nitrogen Reagent
B (7424). Cap and invert to mix. Allow to stand for 30 to 45 seconds.

4.

Use the 0.15g spoon (0727) to add one level measure (avoid any excess)
of Nitrite Nitrogen Reagent C-R. Cap and mix. Allow to stand for 3
minutes. A pink color indicates the presence of nitrite.

5.

Remove cap and insert tube in the Axial Reader comparator. Follow the
Axial Reader instructions to compare the sample color with the
standards. Record result as ppm Nitrite (NO

2

).

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