223101
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Chlorine, low range - As free & total Cl₂
Color Disc
0 - 3.4 mg/L Cl₂
0 - 3.4 mg/L Cl₂
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2064400
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Ozone - As O3
Color Disc
0 - 2.2 mg/L O₃
0 - 2.2 mg/L O₃
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201002
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Cyanide - As free CN-
Color Disc
0 - 0.3 mg/L CN⁻
0 - 0.3 mg/L CN-
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1419301
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Molybdate - As Molybdenum
Color Disc
0 - 8 mg/L Mo
0 - 40 mg/L Mo
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1454200
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Chlorine, low range - As free & total Cl2
Color Disc
0.02 - 0.68 mg/L Cl₂
0 - 3.4 mg/L Cl₂
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224000
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Nitrogen, Nitrite, high range - as NO2 -
Color Disc
0 - 8/0-1600 mg/L NO2 -
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193701
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Tannin/Lignin - As tannic acid
Color Disc
0 - 15 mg/L as Tannic Acid; 0 - 150 mg/L
0 - 15 mg/L as Tannic Acid
0 - 150 mg/L
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223801
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Hydrogen Sulfide - as S2-
Color Disc
0 - 0.56 mg/L S2- (0.01 smallest increment)
0.05 - 2.0 mg/L S2- (0.5 smallest increment)
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2842800
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Chlorine Dioxide
Color Disc
0 - 2.0 ppm ClO₂
0 - 2.0 ppm ClO₂
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1455400
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Silica, high range - As SiO₂
Color Disc
0 - 30 mg/L SiO₂; 0 - 600 mg/L SiO₂
0 - 30 mg/L SiO₂
0 - 600 mg/L SiO₂
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143203
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Detergents - As LAS and/or← ABS detergents
Color Disc
0 - 1.2 mg/L LAS
Contact Hach
2129000
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Chlorine, low range - As free & total Cl₂ ← total Cl₂ ←
Color Disc
0 - 0.68 mg/L Cl₂; 0 - 3.4 mg/L Cl₂; 0 - 10 mg/L Cl₂
0 - 0.68 mg/L Cl₂
0 - 3.4 mg/L Cl₂
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2255000
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Silica - As SiO2
Color Disc
0 - 1 mg/L SiO₂
0 - 1 mg/L SiO₂
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224800
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Phosphorus, Orthophosphate (Reactive) - as PO₄3-
Color Disc
0 - 0.8 mg/L PO₄; 0 - 4 mg/L PO₄; 0 - 40 mg/L PO₄
0 - 0.8 mg/L PO₄
0 - 4 mg/L PO₄
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146400
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Iron, medium range - as Fe
Color Disc
0 - 4 mg/L Fe
0 - 4 mg/L Fe
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2428700
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Nitrogen, Ammonia, mid range - For freshwater or seawater**
Color Disc
0 - 2.4 mg/L NH3 -N
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147500
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Phosphorus, Orthophosphate (reactive) - As PO4 3-
Color Disc
0 - 4.4 mg/L PO₄
0 - 4.4 mg/L PO4
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183400
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Chromium, low range - As hexavalent Cr
Color Disc
0 - 1.3 Cr6+
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2113300
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Phosphonate - As PO4 3-
Color Disc
0 - 100 mg/L PO4
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2167500
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Triazole - As benzotriazole
Color Disc
0 - 15.0 mg/L
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