Gentaur pH 9.00 Buffer Solution at 20°C - 5l
https://www.actbycotec.com/shop/fm-1165307-gentaur-ph-9-00-buffer-solution-at-20degc-5l-66322
https://www.actbycotec.com/web/image/product.template/66322/image_1920?unique=4c07ab9
5L pH 9.00 buffer solution, ensures stable alkaline calibration at 20°C.
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