The HI97733-11 High Range Ammonia Cal Check standards provides a simple solution to calibrating and validating the HI97733 Ammonia High Range Photometer. This high quality set of standards is manufactured in our state-of-the-art facility and comes supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiration date for traceability.
- Supplied with Certificate of Analysis
- Standard value of 35.0 ±1.0 mg/L ammonium (NH4+) @ 25℃
- Reusable with long shelf life stability









