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Zwick Solutions Ensure Quality and Consumer Safety through Reliable Test Results

Zwick Solutions Ensure Quality and Consumer Safety through Reliable Test Results

Reliable test results are critical in every industry; from proving research and development to ensuring quality and consumer safety, the world relies on testing. With over 160 years of experience, Zwick/Roell is committed to reliable test results. Testing systems from Zwick incorporate innovative features that directly support the attainment of reliable test results no matter the industry or location.  

Four essential elements determine reliable test results:  accuracy, repeatability, reproducibility, and traceability.  Customers from more than 20 industries at sites around the globe have turned to Zwick for reliable test results.  Specific examples are available on our website.  You can also view our video on YouTube to learn more.

Measurements that are true and precise are accurate.  Trueness describes the closeness of agreement between a reference value and the average of individual test results.  Precision is the closeness of agreement between individual test results obtained under stipulated conditions, however, this still does not mean that the values obtained by measurement are also true.  They can be precisely untrue, for example, due to systematic error. 

Zwick USA offers a wide range of calibration services to support accuracy in measurement.  Periodic calibrations in accordance with industry regulations and standards establish the difference between set value and actual value. This involves comparing the components of the measurement chain of a testing machine with a national or reference measurement standard.  Zwick USA is A2LA accredited to provide a robust suite of calibration services.

In the case of applications involving brittle specimens, or in creep and fatigue tests, the exact alignment of the load train is critical to obtaining accurate test results.  Periodic alignment verification services assess the alignment of the load train and support accuracy in measurement.  Ask us about our machine alignment services and how they can benefit your testing program and support your applications. 

When measurements are repeatable, they demonstrate precision under repeat conditions, specifically; the same measurement procedure, the same operator, the same measuring equipment, the same location, and the same test conditions. 

Zwick pioneered the ultimate solutions for repeatability with the roboTest line of automated testing systems.  Automated testing — starting from specimen identification, cross-section measurement, uniform insertion and alignment, through to data handling — creates the highest possible repeatability of test results. 

Our testXpert III software also provides capabilities that directly support test result repeatability. The System Configuration Builder in the testXpert III testing software saves all relevant machine settings and assigns them to a user-defined test setup.  This guarantees an identical test configuration every time.  

The concept of reproducibility involves demonstrating precision when the same standard or test procedure is performed using similar measuring equipment — generally at different locations, with multiple operators and test conditions.

Our testXpert testing software includes more than 600 standard-compliant, pre-configured standard test programs, ensuring reproducibility.  All parameters, results, and test reports are pre-configured in accordance with the relevant standard and use the terminology of the relevant industry.

Traceability is the full and complete documentation of a measured result.  Inputs gathered include information on who, how, when, and where the test result was determined.

Traceability of data is achieved by using electronic logging and documentation of all processes and events on the testing machine.  This is accompanied by an accurate time-stamp, which is assigned to the operator.  Intelligent user management controls all access rights and safeguards data against manipulation. 

Click here for further information on the concept of reliable test results and its associated benefits for your testing program. 

View the overview video on the ZwickRoellTV YouTube channel

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Zwick USA
Tel.  +1 770 420 6555
E-Mail  info@zwickusa.com

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