Hach calibration pH buffers are available in a variety of colour-coded or colourless solutions, in different packaging types and sizes from 15 mL up to 20 L. pH buffers are also available in convenient single-use pouches (Singlet) and unit-dose powder pillows for on-site and field analyses ensuring freshness, eliminating the possibility of contamination. All Hach pH buffers are NIST traceable for optimum pH electrode calibration with an accuracy of ±0.02 pH at 25 °C. For all Hach buffers, a specific Certificate of Analysis is available for download from www.hach.com: Support/Service, Certificate of Analysis menu, using product part number and batch number.

ISO17034:2017 Certified Reference Material

For critical applications and metrology needs, Hach offers Certified Secondary pH Standard Reference Buffer Solutions, Certified Reference Material (CRM) according to DIN EN ISO 17034:2017. The certificate is reporting the exact pH buffer value with related expanded uncertainty (k=2). These Certified Reference Material ph buffer solutions are available in a wide range of values and offer a unique extended shelf-life period thanks to a premium aluminium packaging.

Certificate of Analysis from our registered calibration laboratory for Certified Reference Material (CRM) are available at https://au.hach.com/IUPAC
Note: the product images shown are for illustration purposes only and may not be an exact representation of the product. For more information, please do not hesitate to contact us on 08 8340 8444 or email us at sales@asisscientific.com.au