Fisher Scientific UK Ltd.
part of Thermo Fisher Scientific
Bishop Meadow Road,
Loughborough,
Leicestershire,
LE11 5RG |
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Specification Sheet
Fisher Scientific's Quality System has been found to conform to Quality Management System Standard ISO9001:2015 by SAI Global Certificate Number QMS42099
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Catalogue Number: |
J/2820 |
Expiry Phrase: |
Use within 2 yrs of opening |
Description: |
Standard buffer solution, pH4 |
Grade: |
Buffer Solution |
Application: |
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Result Name |
Specification |
Units |
pH @ 20'C |
>= 3.98 and <= 4.02 |
pH
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pH @ 25'C (calculated) |
>= 3.99 and <= 4.03 |
pH
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Additional Information: |
This product is traceable to NIST. 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. |
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Mrs Paula Faulkes |
Monday 20th of January 2025 |
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Quality Assurance Manager. |
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Note: The data listed is valid for all package sizes of this lot of this product, expressed as an extension of the catalogue number listed above. If there are any questions regarding this certificate, please call Technical Support on +32 1456 5600
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