Where your growing season never ends!

pH 4.01 Calibration Sol. 25×20


SKU: HI70004P Category:


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.

Additional information

Weight 1.5000 lbs
Dimensions 6.90 × 6.30 × 3.30 in

Hanna Instruments