Bluelab PH4500B PH 4.0 Calibration Solution, 500 mL

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
• Country of origin: United States

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). Calibration Solutions should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.

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