HANNA HI60004-02 pH 4.010 缓冲液

Accuracy @25°C: 4.010 ± 0.002 pH

Specification:

1 box contains 25 sachets, each sachet 20mL

Single-use per sachet

Colorless solution: The solution does not contain any dyes that may stain or contaminate the electrode junction or reference cell.