The CPY20 buffers are available in various bottle sizes.

pH buffers
CPY20

Highly precise pH buffers for all industries

CPY20

Compare

Temperature curves of CPY20 pH buffers are pre-programmed in all Liquiline series transmitters. — 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 high accuracy and reproducibility of CPY20 help you optimize the pH value in your process. — The high accuracy and reproducibility of the buffers help you optimize the pH value in your process and to maximize the yield and quality of your product.

CPY20 pH buffers are available in various volume units.

The buffers' certificates simplify your audit trails and improve the reliability of your SOPs. — The easily accessible, identical certificates of the buffers simplify your audit trails and improve the reliability of your SOPs.

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

Our pH buffers are tested in accordance with the specifications of DIN EN ISO/IEC 17025:2005.

Our pH buffers are manufactured with greatest care.

CPY20 buffers are available in seven different values from pH 2 to pH 12.

CPY20 pH buffer solutions ensure the reliability and accuracy of your pH measurements.

Field of application

The high-quality CPY20 buffers guarantee pH calibration to ultimate precision. They are produced and bottled in the production laboratory and tested in the calibration laboratory. These tests are performed with a subsample according to ISO 17025 regulations. The buffers are specified with an expanded measurement uncertainty of +/-0.02 pH (> pH 10: +/- 0.05 pH). The buffers contain only FDA-listed preservatives. Using CPY20 you will achieve correct values that you can rely on.

CPY20 pH buffer solutions are used for calibration and adjustment of pH electrodes in all industries. They are optimized for all routine and high precision sensor adjustments in the process as well as in the lab.

The calibration and adjustment can be conducted with:

Memobase Plus CYZ71D software and Memobase Pro
All transmitters of the Liquiline series
All conventional pH transmitters on the market

For an overview over all available buffers and bottle sizes, select the 'Specifications' tab.

Benefits

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 used preservatives are FDA-listed for highest product safety in FDA-supervised processes.
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, identical certificates of all CPY20 pH buffers simplify your audit trails and improve the reliability of your SOPs.
Detailed, individual buffer analysis certificates are available in the Download Area. Enter your lot number in the "Text Search" field and click the "Start Search" button.

Get this product as part of a bundle

Bundle
pH glass sensor measuring point for wastewater applications

Pre-configured pH measuring station with Memosens 2.0 glass sensor for time-saving process monitoring and management
More information

Loading price

Prices temporarily unavailable

Price after login and Configuration in Cart

Price on request

activating price

price: provide information

Price after configuration in cart
Bundle
pH measuring point including sensor with polymer housing

Ready to use pH measuring point with digital Memosens 2.0 sensor with polymer housing to manage your process in the harsh environment of wastewater
More information

Loading price

Prices temporarily unavailable

Price after login and Configuration in Cart

Price on request

activating price

price: provide information

Price after configuration in cart

See all product related bundles

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

Success stories

Wastewater analysis protects river

Our monitoring systems provide expert wastewater analysis for the chemical industry. Read about the experience of one company that needs to monitor and report TOC levels to comply with regulations.
Read the full story
Automation saves time in wastewater analysis

Kerry DCF produces spreads and butter products for the retail market. The company wanted to automate its test for chemical oxygen demand in its treated effluent to save time and optimise the process.
Read the full story
50% less precipitant - 100% reliability and cooperation

IDEA achieved tremendous cost savings through continous monitoring with the CA80PH Analyzer at their site in Wallonia
Read the full story
An automated system for pH measurements at AVR

AVR Waste in Botlek, Rotterdam, processes up to 1.7 million tons of residual waste per year. Discover how they optimized their pH measurement thanks to Endress+Hauser
Read the full story
Automated pH measuring point in wastewater

The Dow plant in Stade relies on Endress+Hauser solutions for pH monitoring in the treatment of production wastewater.
Read the full story

Measuring principle

Potentiometric
Application

pH buffer solution to calibrate all pH sensors
Characteristic

Accuracy 0.02 pH values according GUM
Buffer higher pH 10 accuracy 0.05 pH values according GUM
Measuring range

pH 2.0
pH 4.0
pH 7.0
pH 9.0
pH 9.2
pH 10.0
pH 12.0
Design

The different buffer solutions are colored to avoid mixing of the buffers.
pH 4.0 --> red
pH 7.0 --> green
pH 9.2 --> blue
Dimension

Available in different volume units:
5000ml for use in the Liquiline Control CDC90 system
1000 ml /250ml
18 ml for single use.

We value your privacy

We use cookies to enhance your browsing experience, collect statistics to optimize site functionality, and deliver tailored advertisements or content.

By selecting "Accept all", you consent to our use of cookies.
For further details please review our cookie policy .

Language:	English
Version:	23/08/2024
File size:	120.6 KB
File name:	MSDS_CPY20-E_(GB).pdf

Language:	English
Version:	27/01/2025
File size:	343.2 KB
File name:	SD03293CEN_0224-00.pdf

Language:	English
Version:	27/01/2025
File size:	343.2 KB
File name:	SD03293CEN_0224-00.pdf

Language:	German
Version:	14/07/2023
File size:	2.1 MB
File name:	CP01335CDE_0223_Kompetenz in Wasser.pdf

Language:	Japanese
Version:	22/05/2025
File size:	10.1 MB
File name:	CP01335CJA_0223_Competence in water.pdf

pH buffers
CPY20