SKU: 3441772474
Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
a source of over 70 trace elements
Size: 15″ x 20″
• Made in North America
Low temperature defrosting
Bluelab® pH 7.0 Calibration Solution 500ml soil additive a source of over 70"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."
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