Gentaur Buffer Standard pH 12.00 at 20°C ISO 17034 Certified Reference Material - 1l
https://www.id-bs.com/shop/fm-07-crm1120-gentaur-buffer-standard-ph-12-00-at-20degc-iso-17034-certified-reference-material-1l-22754
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Certified pH 12.00 buffer standard, ISO 17034, 1L at 20°C.
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