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Get it between 2025-02-19 to 2025-02-26. Additional 3 business days for provincial shipping.
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.