 | Additional product information PH4 Calibration Solution, 16 oz Today Price: Check current price  |
Product Description
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 # andexpiry 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.
see detailsPH4 Calibration Solution, 16 oz Hanna Instruments.
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