Bluelab pH 4.0 Calibration Solution ensures that pH meters are providing accurate readings. 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 Solution should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.
We strive to provide each of our customers with a pleasant shopping experience. All of our orders are processed and then shipped within 24 hours (excluding Saturday/Sunday) Once we have received confirmation of payment.
I always carefully pack items with care to avoid damage during shipping.
Estimated time of delivery: 3 to 7 days
1301 Martin Ave, Ste G, Modesto California 95350, United States
1810 Field Avenue, Suite 5, Stockton California 95203, United States