Gentaur pH 9.00 Colour Coded Buffer Solution at 20°C - 1l
https://www.actbycotec.com/shop/fm-07-1090c-gentaur-ph-9-00-colour-coded-buffer-solution-at-20degc-1l-66109
https://www.actbycotec.com/web/image/product.template/66109/image_1920?unique=4c07ab9
Alkaline buffer for pH calibration at 9.00 and 20°C.
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