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Turbidity Standard 20 NTU 1L
Turbidity Standard 4000 NTU 1L
Turbidity Standard 800 NTU 1L
Turbidity Standard 10 NTU, 125 mL
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