Gentaur pH 9.23 DIN 19267 Buffer Solution at 25°C - 500ml
https://www.actbycotec.com/shop/fm-07-109235-gentaur-ph-9-23-din-19267-buffer-solution-at-25degc-500ml-66402
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Certified DIN 19267 pH 9.23 buffer solution, 500ml bottle for precise alkaline calibration at 25°C.
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