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ROTILABO® pH buffer solution sachets 25ml pH:7.00 It is a zwitterionic N1092180 100 It is a zwitterionic Alternatively The quantity of reagent contained in a sachet (25 ml) is sufficient for a single calibration Traceable thanks to comparison with standard references from the National Institute of Standards and Technology (NIST) and the National Metrology Institute of Germany (PTB)
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