Hanna Instruments pH 4.01 Calibration Sol. 25x20 (HI70004P)
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.
| ||Manufacturer's Product Information || |
|MSRP each $||1.28|
|Dimensions||2.75 x 0.25 x 5.75|
— Ships from HF: OR, CA, CO, PA, TX, FL USA (not via USPS).