BlueLab pH 4.0 Calibration Solution 250 ml - 6 / CS

Item #: 6087525
Model #: BLBPH4250BL
Manufacturer: Botanicare

pH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope).

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