Bluelab 732895 PH 7.0 Calibration Solution, 250 milliliters Industrial-Products, Natural

Amazon.com Price: $12.85$19.29 (as of 04/10/2022 10:56 PST- Details)

PH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope)
Store in a cool place out of direct sun and heat
They should be stored with the lids securely tightened

Description

PH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope)
Store in a cool place out of direct sun and heat
They should be stored with the lids securely tightened

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