The buffers CPY20 are produced in the permanent DAkkS-accredited calibration laboratory.

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 traceable to standard reference material of NIST (USA) and PTB (Germany). — CPY20 pH buffers are traceable to standard reference material of NIST (USA) and PTB (Germany), and fulfil the stringent documentation requirements of Life Sciences.

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 buffer production is accredited in accordance with DIN EN ISO/IEC 17025:2005. — Our pH buffer production has successfully passed the tough accreditation process of the German Accreditation Service (DAkkS) in accordance with the specifications of DIN EN ISO/IEC 17025:2005.

We are one of the very few pH buffer manufacturers whose production is completely certified. — We are one of the very few pH buffer manufacturers in the world whose production is completely certified. Additionally, we regularly participate with success in international round-robin tests.

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

CPY20 pH buffer solutions guarantee the reliability, accuracy and traceability 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 permanent calibration laboratory that has successfully passed the tough DAkkS accreditation (German accreditation authority). The buffers are specified with an accuracy rating of +/-0.02 pH. They are traceable to NIST and PTB standard reference material and 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
All transmitters of the Liquiline series
All conventional pH transmitters on the market

For an overview over all available buffers and bottle sizes, please click on 'Features and specifications'.

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.
CPY20 pH buffers are traceable to standard reference material of NIST (USA) and PTB (Germany) and fulfill the stringent documentation requirements of Life Sciences.
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 certificate available in the Download Area. Enter your lot number in the "Text Search" field and click the "Start Search" button.

Predecessor

CPY1
Buffer CPY2

CPY1

Success stories

Präzise Feuchtemessung im Betonmischwerk der Volken Group

Mit dem Materialfeuchtesensor Solitrend MMP41 kann der Feuchtegehalt zuverlässig und präzise gemessen werden.
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
Trinkwasser-Überwachung bei Grossveranstaltung

Überwachung der Trinkwasserqualität mit Analysepanel und cloudbasiertem Netilion Ecosystem
Read the full story
Pure high quality beer and clean wastewater

Discover how Heineken meets all regulations to protect the brazilian environment with the Viomax CAS51D digital nitrate or SAC sensor from Endress+Hauser.
Read the full story

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

Measuring principle

Potentiometric
Application

pH buffer solution to calibrate all pH sensors
Characteristic

Accuracy 0,02 pH values according NIST/DIN
Measurement 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 Topcal system
1000 ml /250ml
18 ml for single use.

Language:	French
Version:	30/05/2022
File size:	124.8 KB
File name:	MSDS_CPY20-E_(CHF).pdf

Language:	German
Version:	30/05/2022
File size:	127 KB
File name:	MSDS_CPY20-I_(CH).pdf

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

Language:	English
Version:	02/12/2021
File size:	3.2 MB
File name:	CP00010CEN_1621_pH selection guide_2021.pdf

Language:	German
Version:	25/03/2020
File size:	3.3 MB
File name:	CP00010CDE_1520_pH-Auswahlhilfe20.pdf

Language:	Czech
Version:	30/05/2022
File size:	310.4 KB
File name:	MSDS_CPY20-E_(CZ).pdf

pH buffersCPY20

Highly precise pH buffers for all industries

Field of application

Benefits

Predecessor

Success stories

Präzise Feuchtemessung im Betonmischwerk der Volken Group

An automated system for pH measurements at AVR

Automated pH measuring point in wastewater

Trinkwasser-Überwachung bei Grossveranstaltung

Pure high quality beer and clean wastewater

Measuring principle

Application

Characteristic

Measurement range

Design

Dimension

Back

CPY20-E (Switzerland (French))

CPY20-I (Switzerland)

Aus Freude an gutem Wasser

pH measurement in industrial processes

pH-Messung in Industrieprozessen

pH-Messung in Industrieprozessen

pH measurement in industrial processes

For the love of quality water

CPY20-K (Austria)

CPY20-E (Austria)

CPY20-E (Czech Republic)

CPY20-E (Germany)

Back

No spare parts available.

Digital pH sensorOrbisint CPS11D

Measurement range

Process temperature

Process pressure

Digital pH sensorCeragel CPS71D

Measurement range

Process temperature

Process pressure

Digital pH sensorMemosens CPS171D

Measurement range

Process temperature

Process pressure

Digital pH sensorOrbisint CPS11D

Measurement range

Process temperature

Process pressure

Digital pH sensorCeragel CPS71D

Measurement range

Process temperature

Process pressure

Digital pH sensorMemosens CPS171D

Measurement range

Process temperature

Process pressure

Choose from our suggested options

Individual configuration

Often bought together

pH buffers
CPY20

Digital pH sensor
Orbisint CPS11D

Digital pH sensor
Ceragel CPS71D

Digital pH sensor
Memosens CPS171D

Digital pH sensor
Orbisint CPS11D

Digital pH sensor
Ceragel CPS71D

Digital pH sensor
Memosens CPS171D