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The certified reference pH buffer solutions are available for pH 4, pH 7 and pH 10.

pH buffer solutions
CPY20

Highly precise pH buffer solutions in 2 quality levels for all industries

CPY20
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Certified reference pH buffer solutions produced according to DIN EN ISO 17025 and DIN EN ISO 17034 ©Endress+Hauser

CPY20 certified reference material: CRM buffer solutions for regulated industries.

CPY20 technical pH buffer solutions are avavailable for a range of pH values ©Endress+Hauser

Robust technical pH buffer solutions to meet high process demands in non-regulated industries

Temperature curves of the CPY20 pH buffers are pre-progralmmed in all Liquiline series transmitters. ©Endress+Hauser

Temperature curves of CPY20 pH buffers are pre-programmed in all Liquiline series transmitters to simplify sensor calibration and adjustment, reducing your maintenance effort.

All used preservatives are FDA-listed for highest product safety in FDA-supervised processes. ©Endress+Hauser

All used preservatives are FDA-listed for highest product safety.

Our reference buffer solutions are produced according to DIN EN ISO 17025 and DIN EN ISO 17034. ©Endress+Hauser

Our certified reference pH buffer solutions are produced and bottled in the accredited production area.

All our pH buffers are manufactured with greatest care. ©Endress+Hauser

All our pH buffer solutions are manufactured with greatest care.

CPY20 pH buffer solutions are available in several bottle sizes. ©Endress+Hauser

CPY20 buffers are available in various container sizes.

CPY20 certified reference material: CRM buffer solutions for regulated industries.

Specs at a glance

  • Measuring range

    Certified reference pH buffer solution:
    pH 4
    pH 7
    pH 10
    Technical pH buffer solution:
    pH 2, pH 4, pH 7, pH 9, pH 9.2, pH10, pH12

Field of application

The CPY20 pH buffers are available in 2 quality levels.

Certified reference pH buffer solutions: pH values 4, 7, 10.
The buffers are produced and bottled in the accredited production area; characterized and checked for homogeneity and stability from bottling to transport and storage in our accredited calibration laboratory according to DIN EN ISO 17025 and DIN EN ISO 17034 regulations. Metrological traceability with an expanded uncertainty of 0.03 pH for pH 4 and 7 and 0.08 pH for pH 10.

Technical pH buffer solutions: pH values 2, 4, 7, 9, 9.2, 10, 12.
The buffers are characterized with a typical measurement uncertainty of +/-0.02 pH (> pH 10: +/- 0.05 pH).


CPY20 pH buffer solutions are optimized for all routine and high precision sensor calibrations and adjustments with:

  • Memobase Plus and Memobase Pro softwares

  • All transmitters of the Liquiline series

  • All conventional pH transmitters on the market

Benefits

  • All preservatives used in the buffers are FDA-listed for highest product safety in FDA-supervised processes.

  • The high accuracy and reproducibility of the buffers help you optimize the pH value in your process and maximize the yield and quality of your product.

  • All offered pH buffers are very robust to meet your high process demands. The certified reference buffer solutions (certified reference material (CRM)) additionally fulfill all requirements of regulated industries.

  • Temperature curves of CPY20 pH buffers are pre-programmed in all Liquiline series transmitters to simplify sensor calibration and adjustment, reducing your maintenance effort.

  • The easily accessible certificates of all CPY20 pH buffers simplify your audit trails and improve the reliability of your SOPs.

  • Detailed, individual buffer analysis certificates for CRM buffer solutions and factory calibration certificates for technical buffers are available in the Device Viewer. Enter your serial number and click the "Search" button.

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