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• Color coded for quick visual reference:- pH 4.01 buffer in red- pH 7.00 buffer in yellow- pH 10.01 buffer in blueThe most common "USA" pH calibration buffer values—in one convenient pack!
To obtain a Certificate of Analysis on each item within the pack, please visit each individual items' page and enter the lot number in the space provided. For example, type part number 00654-00 into the search box at the top web page, then scroll down on the page to the CERTIFICATE OF ANALYSIS box, and enter the lot number in the space provided.
What's Included: one, 500-mL plastic bottle of each pH solution: 4.01, 7.00, and 10.01.