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  • pH 4.01 Calibration Solution, 25x20mL, case of 25

pH 4.01 Calibration Solution, 25x20mL, case of 25

SKU: HI70004P
$36.99
$36.99
Unavailable
per item

Hanna's Buffer solutions are made from established formulas and are standardized with a pH meter that is calibrated to NBS/NIST primary standard buffer solutions. The 20 ml sachets are ideal for infrequent calibrations while for heavy-duty applications, you can choose from the popular 230 ml, 1 liter, or 1 gallon containers. Now the pH 4 buffers carry lot #, expiry date as well as pH/C chart on every bottle. HI 7004L/C and HI 8004L/C are also supplied with an analysis certificate.

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