Stablcal Turbidity Standards

Confidence in your turbidity results
Hach was the first to apply formazine as a turbidity standard in the drinking water industry, more than 40 years ago. Hach's Stablcal^® stabilized formazine turbidity standards are true formazine dilutions developed for use in any turbidimeter. Stablcal^® turbidity standards are USEPA accepted for calibration purposes.
- Precise, pre-mixed formazine solutions for highly accurate results
- Based on formazine primary standards to ensure high purity
- Enhanced stability saves time and labor