Lamotte com pany – LaMotte AMMONIA IN AIR TEST KIT User Manual
Page 2
PRO CE DURE
1.
Pour 10 mL of *Ammonia Nitrogen Absorbing Solution (7737)
into impinging apparatus. Connect impinging apparatus to intake of
air sampling pump.
NOTE:
Make sure the long tube is immersed in the absorbing
solution.
2.
Set flowmeter to sample at a rate of 1.0 Lpm for 10 minutes or until
a measurable amount of ammonia is absorbed.
3.
At the end of the sampling period, add contents of impinger to the
5 mL line of test tube (0230).
4.
Add 2 drops of Ammonia Nitrogen Reagent #1 (4797WT). Cap
and mix.
5.
Add 8 drops of *Ammonia Nitrogen Reagent #2 (4798WT). Cap
and mix. Solution will turn yellow to brown color if ammonia is
present.
6.
Place test tube into Ammonia In Air Comparator (7736). Match
sample color to index of color standards. Note the index number
which gives the proper color match. Record results as ppm
Ammonia Nitrogen.
NOTE:
To convert ammonia nitrogen to ammonia, multiply chart
value by 1.2. Record as ppm Ammonia.
AMMONIA IN AIR CALIBRATION CHART**
TIME
COMPARATOR INDEX NUMBER
(min)
1
2
3
4
5
6
7
8
5
3.43
6.86
10.30
13.73
17.16
20.59
24.02
27.46
10
1.72
3.43
5.15
6.86
8.58
10.30
12.01
13.73
15
1.15
2.28
3.43
4.58
5.71
6.86
8.02
9.14
20
0.86
1.72
2.58
3.43
4.30
5.15
6.01
6.86
**Values in ppm
LaMOTTE COM PANY
Helping Peo ple Solve An a lyt i cal Challenges
®
PO Box 329 • Chestertown • Mary land • 21620 • USA
800-344-3100 • 410-778-3100 (Out side U.S.A.) • Fax 410-778-6394
Visit us on the web at www.lamotte.com
04/10