LaMotte 1200 Colorimeter - Manual (Page 74)

IRON TEST PROCEDURE - 1,10 PHENANTHROLINE METHOD
Read the 1200 Colorimeter Manual before proceeding. Carefully
wipe tubes dry before inserting into the colorimeter chamber.
IRON
2
Fill the Water
Sample Collecting
Bottle (0688) with
sample water. This
will be used to
dispense sample
water for the tests.
Insert the tube
into the
chamber, being
sure to align the
index line with
the arrow on
the meter.
Close the lid.
This tube is the
blank or zero.
Rinse and fill a
colorimeter tube
(0290) to the 10
mL line with
sample water.
Cap and wipe
dry.
5.
3.
1. 2.
4.
6.
I200
COLORIMETER
••••••••••••••••••
READ
bla
ZERO
Cap and invert the
tube 15 times to
mix.
Push the
button to turn the
meter on. Press the
button
and hold it for 2
seconds until
is
displayed. Release
the button to take a
zero reading
(0.00 ppm).
READ
ZERO
bla
Remove tube from
colorimeter. Use the
0.1 g spoon (0699) to
add one measure of
*Iron Reducing
Reagent (2777).
8. 7.
Remove the cap and
add 6 drops of *Acid
Phenanthroline
Indicator (2776).
Cap and invert the
tube 3 times to mix
reagents.
L Mott