HI-97751-11 CAL CHECK STANDARDS FOR SULPHATE 0.00 AND 75.0 PPM

The HI-97751-11 Sulphate Cal Check standards provides a simple solution to calibrating and validating the HI-97751 Sulphate Photometer. This high quality set of standards is supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiry date for traceability.