ORP Standard, 300 mV +/-5% @ 25°C
With Ag/AgCl - Saturated KCl Reference

All of the chemicals and reagents that we offer are manufactured at our Hanover, Pennsylvania facility. Our focus is on quality. Starting materials are usually ACS grade and all testing reagents have Certificate of Analysis available. NIST-traceability is available on items such as calibration solutions. Induction seals (like a Tylenol bottle) under our caps ensure product integrity and decrease the possibility of a leak during shipment. These items are handled by our in-house, certified experts to confirm packages are shipped according to HM-126F, Dangerous Goods Regulations.