In addition to being approved by the EPA, ProCal™ has been certified through testing conducted by HF scientific demonstrating that ProCal™ performs as well as Hach® primary turbidity standards in selected Hach® instruments.
Please mail us if you need a calibration standard for one of the following HACH instrument:
Hach® 1720 c/d/e Process Turbidimeter -
Hach® 2100N Laboratory Turbidimeter -
Hach® 2100AN Laboratory Turbidimeter -
Hach® 2100P Portable Field Turbidimeter -
Hach® 2100Q Portable Field Turbidimeter
