The Micro Check Test Strips are an accurate, inexpensive and safe alternative for reagent chlorine testing. Quick, accurate and easy to use results are achieved in under 1 minute.  Free Chlorine with sensitivity as low as 0.05ppm (mg/L). Micro Check free, detection levels ppm (0, 0.1,…

The HF Scientific Nitrification Inhibitor Dispenser for CBOD Analysis is a quick, convenient and economical way to dispense chemicals when doing multiple carbonaceous CBOD tests. The dispenser is designed to provide an accurate dose of TCMP as outlined in Standard Methods for the Examination of…

ProCal Primary Turbidity Standards are pre-diluted, factory certified, and ready for use with not only the HF scientific turbidimeter product line but with other manufacturer’s instrumentation. The ProCal no formazin formulation utilizes a preservative that enhances stability, yet is safe and…

ProCal Primary Turbidity Standards have been certified by HF Scientific for use in the Hach® 2100N Laboratory Turbidimeter. No formazin is used, making the standards safer, easier to use, accurate and less expensive that the equivalent Hach® product. In addition to being approved by…

The Chlorine Pocket Photometer gives the accuracy expected from your laboratory, no matter where you happen to be. With the addition of the Patented DPD Powder Pop Dispenser, the Chlorine Pocket Photometer is packaged in a rugged, self-contained package that has everything needed for…

DPD Powder Pop® Dispenser with tests for Chlorine Compact and convenient Redesigned dispenser prevents clogging Dispense into round or square cuvettes Push button operation for precise dosing Portable dispensers accurately deliver the correct volume of DPD reagent for…

ProCal Primary Turbidity Standards have been certified by HF Scientific for use in the Hach® 2100AN Laboratory Turbidimeter. No formazin is used, making the standards safer, easier to use, accurate and less expensive that the equivalent Hach® product. In addition to being approved by…

ProCal Primary Turbidity Standards have been certifiedby HF Scientific for use in the Hach® 2100Q Portable Turbidimeter. No formazin is used, making the standards safer, easier to use, accurate and less expensive that the equivalent Hach® product. In addition to being approved by the EPA,…

Designed to provide the ease of portability needed in the field with rugged durability, the MicroTPW / TPI is a necessity for anyone monitoring turbidity on the go. The shock resistant carrying case holds everything necessary for field operation while the instrument itself removes easily to go…

Detect free or total chlorine concentrations as low as 0.05ppm Test strips for field testing and quality-control procedures; provide a safe and economical alternative to reagent chlorine testing. Includes: 50 test strips are supplied in bottle labeled with instructions,…

Thomas No. 9591F16 ProCal Primary Calibration Kit, Full Range, .02, 10, and 1000 NTU (for MicroTOL 2, 4 and Micro100) Thomas No. 9591F25 Cuvette 28 x 70 mm 10/pk (replaces 28 x 93 mm) use for grab sample. Includes threaded light shield caps. Thomas No. 9591F31 Formazin Stock…