Developed for use in any turbidimeter. Hach™ Stablcal™ Turbidity Standards Calibration Kit, Sealed Vials are true Formazin dilutions in individual sealed vials of <0.1, 20, 200, 1000, 4000 NTU and 7500 NTU (2662105 only) levels.
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This pre-packaged and ready to use Stablcal Formazine Reference Suspension with a volume of 100 mL and a concentration of 3 NTUs is certified and stable for 2 years.
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Use turbidity standards for precise measurements with nephelometeric instruments. Non Ratio Turbidity Standards, Reagecon™ are composed of suspended polymer microspheres to eliminate the problems with Formazin standards. They are NIST traceable, US EPA approved and certified accurate to ±1%.