(b) Reagent B - Arsenic Test Paper Strips (yellow cap)
(c) Reagent C - Zinc Pellets (brown cap)
(d) Reagent D - White tablets composed of 92% Urea, 5% Potass-
ium Perchlorate and 3% 4 -
(Nitrobenzl Pyridine (blue cap)
(e) Reagnet E - White tablets wrapped in red foil composed of
0.250g of Anhydrous Potassium Carbonate, 0.0172g of Magnesium Stearate
and Talcium Powder (red cap)
(f) Reagent F - pH test Litmus Paper (black cap)
(g) Reagent G -
White Halazone Tablets (white cap)
(h) Reagent H - Light brown tablets composed of Lactose,
Orthodianisidine Dihydochloride, Acacio, and Glycol (dark green cap)
(i) Reagent I - White tablets wrapped in gold foil commposed
of Potassium Carbonate, Sodium Chloride, Magnesium Stearate and Sodium
Hexametaphosphate (orange cap)
(j) Reagent J - Contains white Dupont Perdox powder (grey
(k) Reagent K - Blue stripped ampule form containing 25% Ace-
tone and 75% Xylene (carton)
(x) Reagent X - White tablet consisting of Potassium Bisul-
fate, Orthotolidine Dihydrochloride and Sodium Chloride (black cap)
All steps must be performed in the order
Obtain a water sample in a canteen cup without excessive
disturbance of the water source.
The specimen sample should be taken
as nearly as possible at the point and depth from which the water is
to be taken.
This water will be used for all tests except the chlor-
ine demand test.
(1) Arsenic Test (fig. 2-25).
(a) Pour the specimen water into the bottle (P) to the 10 ml
mark nearer the bottom of the bottle.
(b) Place 2 tablets from the light green capped vial A into
Swirl to dissolve.
(c) Take 1 test strip from the yellow capped vial B and care-
fully insert it into the tube L, bending the strip near the top so it
will remain upright in the tube.
Touch only the top end of the strip.
Keep test strip dry.
(d) When the tablets from the light green capped vial A have
add 5 pellets from the brown capped vial C to the contents
of bottle P, and promptly fit the tube L assembly into the bottle.