Gentaur pH 4.00 Recal Colour Coded Buffer Solution at 20°C - 6x90ml
https://www.Biologie-lfhk.cz/shop/fm-07-04c60-gentaur-ph-4-00-recal-colour-coded-buffer-solution-at-20degc-6x90ml-25906
https://www.Biologie-lfhk.cz/web/image/product.template/25906/image_1920?unique=192c504
Pack of six 90ml bottles of recalibration pH 4.00 buffer solution, colour coded for quick and precise pH meter adjustment at 20°C.
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