Gentaur pH 9.00 Colour Coded Buffer Solution at 20°C - 500ml
https://www.zaxis-inc.com/shop/fm-07-10905c-gentaur-ph-9-00-colour-coded-buffer-solution-at-20degc-500ml-22811
https://www.zaxis-inc.com/web/image/product.template/22811/image_1920?unique=d99fd84
Convenient pH 9.00 colour coded buffer, 500ml bottle, ensures consistent calibration results at 20°C.
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