PH4 Calibration Solution, 16 oz
PH4 Calibration Solution, 16 oz at -
Hanna Instruments PH4 Calibration Solution, 16 oz (HI7004L) Hanna's buffer solutions are made from established formulas and are standardized with a pH meter 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 # and 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. Hanna pH 4 buffers contain potassium hydrogen phthalate. They are standardized using a pH meter calibrated by primary standard buffer solutions (NIST 186 Ie, NIST 186 IIe and NIST 185g S.R.M.). The pH value is certified traceable to NIST 185g S.R.M. Manufacturer's Product Information MSRP each $ 18.95 Dimensions 2.6 x 7.8 x 2.5 Case Weight 15 Case Quantity 12