Gentaur Buffer Standard pH 6.86 at 25°C ISO 17034 Certified Reference Material - 500ml
https://www.jmeit.com/shop/fm-07-crm1068805-gentaur-buffer-standard-ph-6-86-at-25degc-iso-17034-certified-reference-material-500ml-22729
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Buffer at pH 6.86 certified for precise and traceable calibration at 25°C.
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