HI7004L & HI7004P is a premium quality pH 4.01 calibration solution that is NIST traceable and supplied with a Certificate of Analysis. Hanna calibration buffers have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution.
Air tight bottle with tamper-proof seal
Ensures quality and freshness of solution
Color coded label for easy pH buffer value identification
Easy to identify different buffer values
Solution does not contain any dyes that may stain the reference cell of a pH electrode
Air tight bottle with tamper-proof seal
Ensures quality and freshness of solution
Color coded label for easy pH buffer value identification
Easy to identify different buffer values
Solution does not contain any dyes that may stain the reference cell of a pH electrode