Tampón pH 9,21 (25ºC)

Buffer Solution pH 9.21 (25ºC)

References: CH091 (125 ml), CH092 (250 ml), CH093 (1000 ml)

Borax, Disinfectant. Buffer solution necessary for the calibration of the pH-meter - electrode set. Buffer value: pH 9.21 (25 ° C). Uncertainty: ± 0.02 pH.

features

- Includes certificate of analysis (to be downloaded from our website) that collects the following data: PH value, uncertainty, table of pH values as a function of temperature, traceability, lot number, analysis date and expiration date Buffer safety data sheet available. - Technical type buffer made according to DIN 19267 standard. - It has been contrasted with standard reference material, SRM from the National Institute of Standards & Technology (NIST) and Physikalisch Technische Bundesanstalt (PTB), according to DIN 19266. - Under adequate conservation conditions, its minimum duration is 2 years.