XS Buffer pH 7.00 Green, N.I.S.T. Certificate, Accuracy: ±0,02 pH, 250ml

pH buffers XS are standardized solutions of pH values of 4.00, 7.00, 9.00, 9.21 and 10.01 with two years expiration. XS Buffers have metrological traceability to NIST standard and come with a certificate that is available for download from the website www.chromservis.cz. Buffers are color-coded and are factory tested for stability upon exposure to UV radiation and during freezing. The solutions are supplied in volumes of 250 ml, 500 ml and 5 I. XS Conductivity standards are available as pH buffers with a two year expiration and a certificate. Solutions are available in packs of 500 ml.

All solutions delivered in a volume of 250 ml and 500 ml are in a practical plastic canisters that facilitates calibration and prevents contamination of the stock solution.

Important features

• Metrological traceability (N.I.S.T.)
• Easy to use
• Economical operation (for calibration use only a small quantity of sample)
• Stability 2 years