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.
$36.99 Original price was: $36.99.$25.89Current price is: $25.89.
SKU: HI70004P Categories: Hydroponics, Meters & Solutions
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| Weight | 1.5 lbs |
|---|---|
| Dimensions | 6.9 × 6.3 × 3.3 in |
| Brand | Hanna Instruments |
| Options | Hanna pH 4.01 Calibration Solution, 20 ml, case of 25 |
| Distributor | Hydrofarm |
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