Fisher Scientific UK Ltd. Bishop Meadow Road, Loughborough, LE11 5RG Certificate of Analysis Thermo Fisher Scientific's Quality System has been found to conform to Quality Management System Standard ISO9001:2015 by SAI Global Certificate Number. QMS42099 Catalogue Number J/2850 Lot Number 2411225 Description Buffer solution pH7 , Buffer Solution Quality Test / Release Date 23-SEP-24 Expiry Phrase Use within 2 yrs of opening Country of Origin Belgium Declaration of Origin Synthetic BSE/TSE Not directly derived from or manufactured with any animal byproducts in any way (Including but not limited to fermentation or nutrient broth, catalysts, enzymes). Result Name Units Specification Test Value Appearance Clear colourless Mobile liquid Clear colourless Mobile liquid pH @ 20'C pH >= 6.98 and <= 7.02 6.9920 pH @ 25'C (calculated) pH >= 6.96 and <= 7 6.972 Additional Information: The pH value is determined from the response of a calibrated glass electrode. The pH scale is that defined in BS1647:1984. The glass electrode is calibrated by measuring its response when immersed in reference buffer solutions. Reference buffer solutions are prepared according to the formulations in the British Standard and are traceable to NIST reference material. Stabilised with 10ppm Mercury (II) chloride. Certified By Mrs Paula Faulkes Tuesday 23rd of December 2025 Quality Assurance Manager. Products are processed under ISO 9001:2015 quality management systems and samples are tested for conformance to the noted specifications. Certain data may have been supplied by third parties. We disclaim the implied warranties of merchantability and fitness for a particular purpose, and the accuracy of third-party data or information associated with the product. Products are for research use or further manufacturing. Products are not for direct administration to humans or animals. It is the responsibility of the final formulator or end user to determine suitability, and to qualify and/or validate each product for its intended use.