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Parameter Comparator 705

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Parameter Range Method Disc P/N Outfit P/N Reagent(s) Reagent(s) P/N
Chlorine 0 – 3.0 mg/l Acid o-tolidine 330-D 330-DA Ortho-Tolidine Solution R-420
Chlorine 0 – 10.0 mg/l Acid o-tolidine 331-D 331-DA Ortho-Tolidine Solution R-420
Chlorine 0 -1.0 mg/l Acid o-tolidine 332-D 332-DA Ortho-Tolidine Solution R-420
Chlorine 0 -250 mg/l Acid o-tolidine 334-D 334-DA Ortho-Tolidine Solution R-420
Chlorine 0.2 – 4.0 mg/l DPD 430-D 430-DA DPD No. 1 Tablets
DPD No. 3 Tablets		 431-IT
433-IT
Chlorine 0.1 – 2.0 mg/l DPD 431-D 431-DA DPD No. 1 Tablets
DPD No. 3 Tablets		 431-IT
433-IT
Chlorine 0.1 – 1.0 mg/l Acid o-tolidine 432-D 432-DA Ortho-Tolidine Solution R-420
Color of Water** 50- 500 Pt. Co. / APHA L242801 No Reagent Required — See note below
pH 4.8 – 6.4 pH Chlorphenol Red-D 160-D 160-DA Chlorphenol Red-D Solution 160-S
pH 6.0 – 7.6 pH Bromthymol Blue-D 170-D 170-DA Bromthymol Blue-D Solution 170-S
pH 6.8 – 8.4 pH Phenol Red 180-D 180-DA Phenol Red Indicator Solution 180-S
pH 7.2 – 8.8 pH Cresol Red-B 185-D 185-DA Cresol Red-B Indicator Solution 185-S
pH 7.6 – 9.2 pH Thymol Purple-D 187-D 187-DA Thymol Purple-D Solution 187-S
pH 8.0 – 9.6 pH Thymol Blue-B 190-D 190-DA Thymol Blue-B Solution. 190-S
pH 1.0 – 11.0 pH Wide Range Indicator 250-D 250-DA Wide Range Indicator 250-S
Phosphate 1.0 – 120.0 mg/l Ortho 355-D 355-DA Molybdate Reagent 2.5 % Amino Sulfonic Acid Reagent R-416 R-2240
Phosphate 0 – 24.0 mg/l Ortho and Poly 356-D 356-DA Sulfuric Acid,
12.0 N Ammonium Molybdate ,
10% Amino Sulfonic Acid Reagent		 R-469
R-3371
R-2240
Silica 0 – 50 mg/l 383-D —