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30
Ranges 0.0 to 1.0 and 0.0 to 3.0 p.p.m. Cl
The following two color discs are recommended for determining the free or
residual chlorine of drinking and swimming pool water, sewage industrial
wastes, and for slime control in water systems, paper mills, etc.
Model
    Range
Description
332 - D
      0.0, 0.05, 0.1, 0.2, 0.3, 0.4,
with 2 oz. (100 tests) No. R - 420 Ortho - tolidine
      0.5, 0.6, 0.8, 1.0 p.p.m. Cl
Solution, graduated dropping pippette
330 - D
      0.0, 0.1, 0.2, 0.4, 0.6, 0.8,
with 2 oz. (100 tests) No. R - 420 Ortho - tolidine
      1.0, 1.5, 2.0, 3.0 p.p.m. Cl
Solution, graduated dropping pippette
Model
    Range
  Description
331 - D
       0.0, 0.2, 0.5, 1.0, 2.0, 3.0,
    with 2 oz. (100 tests) No. R - 420 Ortho - tolidine
       4.0, 6.0, 8.0, 10.0 p.p.m. Cl
    Solution, graduated dropping pippette
Range 0.0 to 10.0 p.p.m. Cl
Recommended especially for chlorine control in beverage bottling
operations and where prechlorination is employed.
Special  Ranges  assembled to order:
Model
  Description
333 - D - 13
    with 2 oz. (100 tests) No. R - 420 Ortho - tolidine Solution,
    graduated dropping pipette
Specify and 10 of the following standards:
0.0     0.05     0.1     0.2     0.3     0.4     0.5     0.6     0.7     0.8     1.0     1.2     1.5
1.6     2.0       2.4     2.5     2.8     3.0     3.5     4.0     4.5     5.0     6.0     7.5     8.0
10.0   15.0     20.0 p.p.m. Cl
Comparator outfits are ideal for testing water, wastes, boiler and cooling
water, process fluids, swimming pools, spas and more.  Completely
portable.  Ideal for lab, plant, or field.
Exclusive Features
- Pocket Comparator is made of tough, chemical - resistant phenolic.  Compact, only
3 3/4 inches square.  Precision Diffuser provides even illumination to color standard and
sample, without distortion or shadow.
- Color Discs contains 9 or 10 guaranteed - permanent color standards.  Fit
interchangeably in the comparator.
- Precision Polished Standards have uniform colors edge to edge.  Much easier to
compare than continuous color wedges having different colors from top to bottom.
- Magnifying Prism brings colors of standards and test sample side - by - side.  One
Enlarged image for accurate and foolproof comparison.  Helps make exact color match;
results unmistakable.
- Square Precision Tubes supplied with Comparator show uniform colors edge to edge.
Superior to round tubes, which cause errors because colors seen are not uniform.
- Reagents supplied in stable form (liquid, powder, or tablet).  Easily dispensed.
Model
Description
605-AHT
With Magnifying Prism
605-HT
              Without Prism
Chlorine Color Discs
Water Test Comparators
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