Technical pH buffer solutions Colour: coded. Tested and ISO 17025 Certified at 25°C. Uncertainty of measurement ±0.02pH. Temperature dependence data is printed on the label as are lot numbers and expiry dates. These pH buffer solutions are suitable for use where very accurate measurements are required and are supplied with a detailed Certificate of Analysis which outlines traceability to N.I.S.T (the N.I.S.T SRM(s) Lot No. is stated on the certificate). This item has a 12 to 36 month shelf life from date of manufacture depending on pH value.
Product Specification: pH value: pH 4.01 at 25 °C Capacity: 1000 ml Colour: Red
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