TM 5-6630-215-12
F i g u r e 2 - 8 .
V i e w i n g A d a p t e r , D e t a i l s - L o w R a n ge
(a) If the lengthwise viewing adapter is in place, remove it.
(Figs.
2-7 and 2-8).
(b) Using a 25 ml graduated cylinder, add 5 ml of sample water
to one of the sample tubes.
Add the contents of one Ferrover Iron
Reagent Powder Pillow to the sample.
Stopper the tube and invert and
mix.
Allow the solution to stand 2 minutes.
(c) Replace the 0 to 1.0 mg/l range comparator disc with the 0
to 10.0 mg/l range comparator disc.
(d) Place the prepared water sample in the right top opening
of the comparator.
(e) Add 5 ml of clear water (using a 25 ml graduated cylinder)
to the other sample tube and insert this tube in the left top opening
of the comparator.
Change 1
2-25
