pH buffer solution, pH 9.00 clear, 5 l, ±0.01 @ 25°C (no dan. goods)

Clear or coloured pH buffer solutions. Supplied in convenient Bag in Box with dispensing tap. Tested and ISO 17025 certified at 25 °C. Uncertainty of measurement ±0.01 pH. Supplied with a detailed Certificate of Analysis which outlines traceability to N.I.S.T. Temperature dependence data is printed on the label as are lot numbers and expiry dates.