Gentaur pH 9.00 Buffer Solution at 20°C - 1l
https://www.actbycotec.com/shop/fm-07-1090-gentaur-ph-9-00-buffer-solution-at-20degc-1l-66386
https://www.actbycotec.com/web/image/product.template/66386/image_1920?unique=4c07ab9
1L pH 9.00 buffer solution, reliable alkaline calibration at 20°C.
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