Hanna pH 4.01 Calibration Solution, 20 ml, case of 25 reflective-and-greenhouse-films 7" NanoDome

7" NanoDome

noise is reduced to levels that were previously thought to be unattainable

000 mg of ozone per hour

Reproducibility: Pumps +/-2

For use in 250W metal halide fixtures

Hanna pH 4.01 Calibration Solution, 20 ml, case of 25 reflective-and-greenhouse-films 7" NanoDomeHanna'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