wtw photolab S12 Operating Instructions Manual page 8

photoLab ® Series
2 Photometric Test Kits
In some cases the intensity of the color of the solution and thus the ab-
sorbance can drop again when very high concentrations of the analyte
are present. The examples are listed in the following table. The values indi-
cated in the display are cor rect up to the concentrations specified in the
third column, and false measuring values are ob tained above these con-
centrations. In such a case it is necessary to conduct a plau sibility check
by running preliminary tests using test strips or dilution.
Cat. No. Method
114739 Ammonium CT
114558 Ammonium CT
114544 Ammonium CT
114559 Ammonium CT
114752 Ammonium Test
100683 Ammonium Test
100605 Bromine Test
100595 Chlorine CT
100597 Chlorine CT
100598 Chlorine Test
100602 Chlorine Test
100599 Chlorine Test
100086/ Chlorine Test
87/88
100608 Chlorine Dioxide Test
114553 Copper CT
114767 Copper Test
114557 Fluoride CT
100809 Fluoride CT
114598 Fluoride Test
100606 Iodine Test
101632 Monochloramine Test
100607 Ozone Test
114551 Phenol CT
114831 Silver Test
6
Correct indi- Color change
cation of
result up to
sample conc.
100 mg/l turquoise instead of green
500 mg/l turquoise instead of green
1000 mg/l turquoise instead of green
5000 mg/l turquoise instead of green
100 mg/l turquoise instead of green
2500 mg/l turquoise instead of green
50 mg/l yellow instead of red
25 mg/l yellow instead of red
25 mg/l yellow instead of red
25 mg/l yellow instead of red
25 mg/l yellow instead of red
25 mg/l yellow instead of red
300 mg/l yellow instead of red
15 mg/l yellow instead of red
50 mg/l turquoise instead of blue
50 mg/l turquoise instead of blue
5 mg/l brown instead of violet
5 mg/l brown instead of violet
5 (50) mg/l brown instead of violet
50 mg/l yellow instead of red
300 mg/l turquoise instead of green
15 mg/l yellow instead of red
100 mg/l weakening of color
5 mg/l no change (flocculation)
Release 01/2012