Endress Hauser pH buffers CPY20
The CPY20 is a line of highly precise pH buffer solutions from Endress+Hauser, designed for the calibration and adjustment of pH electrodes across all industries. Available in two quality levels, these buffers ensure accurate and reliable pH measurement in both routine and high-precision applications.
Key Features and Benefits
-
Two Quality Levels for Every Application: The CPY20 portfolio includes Certified Reference pH Buffer Solutions (pH 4, 7, 10) for regulated industries requiring the highest metrological traceability, and Technical pH Buffer Solutions (pH 2, 4, 7, 9, 9.2, 10, 12) for routine calibration and adjustment tasks.
-
High Accuracy and Traceability: Certified reference buffers are produced and bottled in a DAkkS-accredited laboratory and are traceable to NIST (USA) and PTB (Germany) standard reference materials. The technical buffers offer a typical measurement uncertainty of ±0.02 pH (for values above pH 10: ±0.05 pH).
-
Optimized for All pH Sensors: CPY20 buffers are optimized for use with Memobase Plus and Memobase Pro software, all Liquiline series transmitters, and all conventional pH transmitters on the market.
-
FDA-Listed Preservatives: All preservatives used in the buffers are FDA-listed, ensuring the highest product safety for FDA-supervised processes.
-
Pre-Programmed Temperature Curves: Temperature curves for CPY20 buffers are pre-programmed in all Liquiline series transmitters, simplifying sensor calibration and adjustment while reducing maintenance effort.
-
Easy Audit Trails: Readily accessible, uniform certificates for all CPY20 pH buffers simplify audit trails and improve the reliability of Standard Operating Procedures (SOPs).
Technical Specifications (at a Glance)
| Specification | Detail |
|---|---|
| Product Type | pH buffer solutions |
| Quality Levels | Certified Reference (CRM) and Technical |
| Certified Reference pH Values | pH 4, 7, 10 |
| Technical pH Values | pH 2, 4, 7, 9, 9.2, 10, 12 |
| Accuracy (Technical) | ±0.02 pH (for pH > 10: ±0.05 pH) |
| Traceability | NIST (USA) and PTB (Germany) |
| Available Volumes | 18 ml (single use), 250 ml, 1000 ml, 5000 ml |
| Color Coding | pH 4 = red, pH 7 = green, pH 9.2 = blue |
| Compatibility | Memobase Plus/Pro software, Liquiline transmitters, conventional pH transmitters |
The CPY20 pH buffer solutions deliver the accuracy, traceability, and documentation required for reliable pH calibration across all industries, from routine laboratory measurements to highly regulated pharmaceutical and life sciences processes.
Endress Hauser pH buffers CPY20
The CPY20 is a line of highly precise pH buffer solutions from Endress+Hauser, designed for the calibration and adjustment of pH electrodes across all industries. Available in two quality levels, these buffers ensure accurate and reliable pH measurement in both routine and high-precision applications.
The CPY20 portfolio includes two distinct quality levels. The Certified Reference pH Buffer Solutions are available at pH 4, 7, and 10 for regulated industries requiring the highest metrological traceability. These are produced and bottled in a DAkkS-accredited laboratory and are traceable to NIST (USA) and PTB (Germany) standard reference materials. The Technical pH Buffer Solutions are available at pH 2, 4, 7, 9, 9.2, 10, and 12 for routine calibration and adjustment tasks, offering a typical measurement uncertainty of ±0.02 pH (for values above pH 10: ±0.05 pH).
The buffers are optimized for use with Memobase Plus and Memobase Pro software, all Liquiline series transmitters, and all conventional pH transmitters on the market. Temperature curves for CPY20 buffers are pre-programmed in all Liquiline series transmitters, simplifying sensor calibration and adjustment while reducing maintenance effort. This pre-programming eliminates manual temperature compensation and minimizes the risk of calibration errors.
All preservatives used in the buffers are FDA-listed, ensuring the highest product safety for FDA-supervised processes. Readily accessible, uniform certificates for all CPY20 pH buffers simplify audit trails and improve the reliability of Standard Operating Procedures (SOPs), making them suitable for use in regulated environments including pharmaceutical, life sciences, and food and beverage industries.
The buffers are available in multiple volumes to suit different usage requirements: 18 ml single-use sachets, 250 ml bottles, 1000 ml bottles, and 5000 ml canisters. Color coding simplifies identification: pH 4 is red, pH 7 is green, and pH 9.2 is blue.
The CPY20 pH buffer solutions deliver the accuracy, traceability, and documentation required for reliable pH calibration across all industries, from routine laboratory measurements to highly regulated pharmaceutical and life sciences processes.






