Hands attaching temperature or humidity sensors to a measuring fixture inside a test chamber.

Calibration and Testing Laboratory

Expertise in accredited calibration and testing services

As your 360° partner, we thus offer you not only high-quality equipment but also the corresponding accredited calibration and testing services—all from a single source, with dedicated contacts and streamlined processes.

Our Services

Close-up of measuring cables and sensors attached to a test fixture in the ThermoTEC calibration laboratory.

Calibration Laboratory

Our calibration services are based on recognized guidelines such as DKD-R 5-1, DKD-R 5-7, and DKD-R 5-8, as well as our own validated in-house procedures.

Calibration Laboratory

Green forest landscape with clear water and sunlight symbolising natural environmental and climate conditions.

Environmental Simulation Testing Laboratory

We offer a testing laboratory accredited according to DIN EN ISO/IEC 17025 for environmental testing and climate storage under conditions that comply with standards and are accredited—ensuring reliable and precise results.

Environmental Simulation Testing Laboratory

Interior view of a walk-in test chamber with multiple metal shelving units for controlled ageing and material testing.

Accelerated Aging Test Laboratory

Calibrated and GMP-compliant climate chambers and climate cabinets are available for accelerated aging tests, providing both standardized and customized climatic conditions.

Accelerated Aging Test Laboratory

Frequently Asked Questions About the Calibration Laboratory:

A calibration laboratory accredited to DIN EN ISO/IEC 17025 meets internationally recognized requirements for competence, measurement accuracy, and documentation. The accreditation confirms that measurement procedures are validated, results are traceable, and processes comply with standards—a crucial factor for audits and quality assurance.

Accredited calibration ensures that measured values are precise and internationally comparable. It is a prerequisite for standard-compliant testing processes and increases confidence during audits. Companies thereby minimize risks associated with erroneous measurement results and ensure the long-term quality of their processes.

Typical calibrations include temperature, relative humidity, and absolute humidity. Various measurement methods are used, such as resistance thermometers, hygrometers, or dew point meters. Complete climate chambers can also be calibrated—on-site if necessary.

In our accredited testing laboratory, we can perform temperature and thermal shock tests, climatic and cyclic climatic tests, as well as climatic storage under defined conditions. These tests are conducted in accordance with standards and provide reliable results for research, development, and quality assurance.

The tests and storage are conducted in accordance with international standards such as the IEC 60068 series, as well as other standards like IEC 16750-4 or industry-specific guidelines. This ensures that test results are recognized, comparable, and audit-ready.

Calibration intervals depend on system usage, requirements, and standards. In many cases, annual calibration is recommended; for critical applications, calibration should be performed more frequently.

Traceability means that measurement results can be traced back to national or international reference standards. This ensures that measurement values are comparable and traceable worldwide.

During calibration, a measuring instrument is checked and compared with reference values. Testing, on the other hand, evaluates whether a product or system meets defined requirements or standards.

The duration depends on the size of the system, the number of measurement points, and the required test conditions. In many cases, a calibration can be performed within one business day. 

Yes. Sensor aging, wear, or control deviations can occur, especially in older climate chambers. Regular calibration helps ensure the long-term reliability of test results. 

Regular calibrations increase process reliability, improve the traceability of test results, meet quality requirements, and reduce the risk of costly false tests. 

Accelerated aging tests simulate long-term stress in a significantly shorter time. This allows conclusions about service life and material behavior to be drawn more quickly 

Oliver Kassl

Head of the Testing Laboratory

+49 (0) 6471-6293-231
kassl(at)ttwe.de

Dirk Hermann

Head of the Testing Laboratory

+49 (0) 6471-6293-136
hermann(at)ttwe.de