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- Calibration
  
  We are one of the leading calibration laboratories in Germany and accredited for more than 300 calibration procedures according to DIN EN ISO/IEC 17025:2018.
  Calibration
- Our measured variables
  Our accredited laboratories cover almost all measurands and offer a unique service portfolio.
- On-site calibration
  We calibrate test equipment and measuring points at our customers' sites with professional competence and high-precision equipment.
- Calibration equipment
  With our portable calibrators for temperature, humidity and pressure, calibrations can be carried out regardless of location.
- Test equipment management
  
  We manage your test equipment with the holistic PRIMAS test equipment management solution for compliance with standards and directives.
  Test equipment management
- PRIMAS online & mobile
  The internet-based test equipment management system PRIMAS online supports the assurance of test equipment requirements - even while on the road.
- PRIMAS validated
  PRIMAS validated is a validation-enabled test equipment management system for companies with GxP compliance requirements.
- PRIMAS exchange
  PRIMAS exchange enables automated data transfer of test equipment data between MES/CAQ systems and our data master.
- PRIMAS connect
  PRIMAS connect is a web service for automated access and queries to PRIMAS online in the Testo Industrial Services data system.
- Qualification
  
  We support qualification projects such as cleanroom qualification or plant qualification. We also qualify warehouses and transport systems according to GDP and GSP standards.
  Qualification
- Cleanroom
  Professional support for all GMP measures in the area of cleanroom qualification - from conception to implementation.
- Plants & Utilities
  Risk-based qualification of process plants, supply systems and utilities for the sustainable safety of process stability and robustness.
- Transport and storage
  Storage and transport qualification to ensure uniform temperature and climate conditions and maintain product quality.
- Validation
  
  We take care of cleaning, process and transport validation as well as computer and software validation to ensure reproducibility and robustness.
  Validation
- Cleaning validation
  Holistic handling of professional cleaning validations as well as support for validation projects and revalidation measures.
- Process validation
  Risk-based process validation to demonstrate the fulfilment of process requirements and outcomes, and to ensure product quality.
- Transport validation
  Transport validation to ensure stable climate conditions during logistics and transport of sensitive goods to the consumer.
- Computer Software Validation
  Computer system validation and software validation (CSV) to ensure the reproducibility of procedures and processes of computer-based systems.

Ring comparisons

Proficiency tests in the relative humidity range: Hygrometer

A Proficiency test is carried out for the measured variable relative humidity according to the methodology of DIN EN ISO/IEC 17043:2010. 

A humidity sensor with measuring device is sent as the calibration item. The calibration item must be calibrated in accordance with guideline DKD-R 5-8:2019 sequence B. The deviation of the relative humidity at the following measuring points must be determined:

10 % rH, 50 % rH, 90 % rH each at 10 °C
10 % rH, 50 % rH, 90 % rH each at 23 °C

The assigned reference values are determined using the weighted average of all participant results from the accredited calibration laboratories. The results are evaluated using the E_n‑value for the assigned value.

Schedule and procedure:
Expression of interest: by 21 June 2024
Planned start proficiency test: August 2024

The proficiency test takes place in a ring, whereby a calibration is carried out in the pilot laboratory at least before and after the calibrations of all participants. Each participating laboratory has two calendar weeks to carry out the calibration and is responsible for the insured forwarding of the calibration items. An exact schedule will be sent to the participating laboratories before the start.

Are you interested in our next proficiency test? Then fill out the contact form below by 21 June 2024. We will then send you a non-binding offer. Participation is considered binding as soon as the offer is accepted and an order confirmation is sent.

A summary of the proficiency tests can be found in the description.

Note: A minimum number of eight participating laboratories must be reached in order to carry out this proficiency test.