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Fluoride Standard as F 0.50 mg/L (ppm) 1L
Fluoride Standard as F 1.0 mg/L (ppm) 500mL
Nitrate Standard as N, 1000 mg/L (ppm) 1L
Nitrate Standard as N, 1000 mg/L (ppm) 500mL
200 ppm Nitrite (NO₂⁻), equivalent to 60.9 ppm Nitrogen (N) 120mL
Bluesen TU90 Lamp Module
Conductivity Standard Solution 1,406 μS/cm 1L
Conductivity Standard Solution 1000 μS/cm 120mL
