Shop / bluelab ph calibration solution
Bluelab PH4500B 500 mL pH 4.0 Calibration Solution
Add to wishlist
Category: bluelab ph calibration solution

About this item
- Country of origin: United States
- They should be stored with the lids securely tightened
- PH instruments are calibrated to pH 7.0 first (buffer) then to pH 4.0 (slope)
- Keep in a cool area away from direct sunlight and heat.