Buffer pH 7.00 arrived in a leaking bottle. Luckily the bottle was sealed in a plastic bag to protect the packaging from getting wet with buffer fluid. Nevertheless, the arrival of the calibration buffer in such a dirty state was very disappointing. Biopharm Calibration Buffer Set 3 packs of 500mL each Calibration standards pH 4, 7 and 10 NIST color coded Traceable to all pH meters
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