About our laboratory
Link Lab offers cutting-edge calibration services either at our state-of-the-art, environmentally controlled multi-laboratory facility in Athens or through on-site visits when required for convenience or practicality.
As a Precision Calibration Laboratory accredited to ISO/IEC 17025:2017 by the Hellenic Accreditation System (ESYD), Link Lab is committed to providing expert advice on selecting the best specialist equipment for your application. We supply a wide range of testing and measurement equipment, accessories, and specialized optical Reference Standards.
Calibration is a critical process that ensures the accuracy of measuring equipment, often involving precise and complex measurements, and sometimes requiring unique tools. Our impressive multi-laboratory facility allows us to fully utilize all specialized equipment and technical expertise in-house.
Industry Calibrations
With a team of 14 skilled engineers, we cover a broad spectrum of industries, including automotive, aerospace, petrochemical, pharmaceutical, electrical, and renewable energy, among others. Our calibration and repair services have been trusted by clients across these diverse sectors.
For clients with specialized needs, we offer comprehensive management packages that go beyond calibration. We become a proactive partner, helping you streamline the supply, maintenance, and distribution of your equipment, making processes quicker, easier, and more efficient.
Our expertise is continually updated with ongoing training in the latest technologies and calibration techniques, ensuring that we deliver exceptional, up-to-date technical support. We are dedicated to maintaining the highest standards of quality, accuracy, and precision, and continually strive to reduce turnaround times without compromising the quality of our measurements.
Link Lab is committed to providing the highest level of calibration services while constantly enhancing the efficiency and effectiveness of our operations.
ISO 17025 Calibration Services
Our laboratory is specialized in ISO 17025 calibrations. We deliver our services to the best possible standard. Check out what our ISO 17025 accredited lab has to offer and do not hesitate to contact us directly to discuss any of your problems.
Link Lab’s laboratory conducts accredited calibrations of:
– Mass Measurements
• Non-automatic Weighing Instruments
• Volume Measurements
– Liquid Volume Meters
– Temperature Measurements
• Direct Reading Thermometers
• Temperature Sensors
• Analog Temperature Recorders
• Environmental Baths
• Environmental Chambers
• Environmental Ovens
– pH Measurements
– Conductivity Meters
– Spectrophotometric Measurements
– Spectrophotometers
– Pressure Measurements
– Analog Relative Gas Pressure Instruments
– Relative Humidity Measurements
– Environmental Chambers


Link Lab’s IQ/OQ/PQ (Installation Qualification, Operational Qualification, and Performance Qualification) service is designed to ensure your laboratory meets the highest standards of compliance and precision. Our thorough validation process guarantees that your equipment is correctly installed, operates according to manufacturer specifications, and consistently performs to meet your specific application requirements—all while adhering to GMP/GxP standards and providing ISO/IEC 17025 traceable results.
Link Lab’s laboratory conducts IQ/OQ/PQ for:
QUALIFICATION & VALIDATION for Cleanrooms and Contamination-Controlled Environments
Comprehensive solutions for each stage of the contamination control process.
You can count on our highly trained expert team with customized, comprehensive contamination control solutions.
Our qualified validation engineers from ICS conduct thorough environmental performance validation for cleanrooms, safety cabinets, surgery rooms, IVF rooms, electronic production areas, Local Exhaust Ventilation (LEV) systems, and workstations. Beyond ensuring initial compliance, we also guarantee continued adherence to all necessary standards, industry guidelines, and cGMPs.
Link Lab is an ESYD ISO17025 certified testing laboratory (Lab No. 254).
Our validation services provide assurance that your clean air facilities and equipment meet national standards and industry guidelines.
- Air velocity and air volume flow rate measurement
- Pressure differential measurement
- HEPA filter installation integrity leak testing (photometer or particle counter scanning)
- Airborne particle cleanliness classification (counts)
- Air quality tests
- Recovery rates
- Airflow visualisation studies
- Induction leak testing
- Temperature and relative humidity measurement and mapping
System inspections
- Lighting and noise measurements
- Aperture retention (operator protection) tests
- Microbiological sampling (active air, settle and contact plates)
Our engineers are experienced with a wide range of clean air applications, from single clean air cabinets to the largest ISO Class 5 cleanroom in Europe.
We perform mapping validations with digital sensors to monitor temperature and humidity levels at various locations over extended timeframes. The FDA & WHO require that product and sample storage areas comply with strict conditions. These vital storage areas include:
- Warehouse Storage- Logistics
- Refrigerators / Freezers
- Cold Rooms
- Incubators
Link Lab’s Calibration Laboratory, a leader in the field of calibration, is embracing the future with a strategic partnership with an American company specializing in calibration data management software. As of April 15, 2023, all certificate and data processing tasks will be streamlined through a centralized platform, replacing outdated systems like spreadsheets and ensuring efficient management of all operations.
Here are some key benefits our customers can now enjoy:
- ISO 17025, FDA 21CFR Part 11, GAMP-5 Compliance
Our software meets the highest standards for security, structure, and database integrity, ensuring full compliance with stringent requirements, including traceability reports, audit logs, and competency matrices. - Instant Access to Calibration Certificates
Customers can now instantly access and download calibration certificates through their own branded portal, in addition to receiving physical copies with shipments. - Faster Certificate Delivery
Thanks to the cloud-based nature of the software, calibration certificates can be delivered almost immediately, drastically reducing the time between calibration and certificate issuance. - Automated Recalibration Reminders
Customers can opt to receive timely notifications about the recalibration deadlines for their instruments, based on a schedule that suits them. (This service is available upon agreement.) - Tolerance Lookups
The software enables the development and maintenance of tolerance lookups, allowing for precise uncertainty calculations per customer.
By adopting these innovative solutions, we continue to enhance our services, ensuring faster, more secure, and more efficient calibration management for all our clients.

When air cleanliness is critical, our unmatched expertise allows us to offer a comprehensive range of testing and monitoring services for essential clean air facilities and equipment. All tests are conducted in accordance with international standards, including ISO 14644 Parts 1, 2, 3, 4, and 7, EN 12469, and the EU GMP Annex 1 guidelines.
- Cleanrooms
- Pharmaceutical Isolators & RABs
- Unidirectional Flow Workstations
- Microbiological Safety Cabinets (Classes I, II and III)
- IVF Clean Laboratories
- Surgery rooms, Operation theaters
- Electronic production rooms
- Sampling and Weighting booths
- Negative Pressure Isolators
- Ducted Fume Cupboards
- Gene Therapy Cleanroom


LEV Testing & Fume Cupboards
Workplace safety is crucial and Local Exhaust Ventilation (LEV) systems, along with fume cupboards, play a critical role in manufacturing environments. Dust, hazardous particles, and chemical fumes ca n pose significant health risks to employees. Even if these risks appear minor, prolonged exposure can lead to severe and irreversible health issues.Equally important is the routine testing and assessment of these systems to ensure they continue to provide adequate protection for workers.In compliance with the COSHH (Control of Substances Hazardous to Health) regulations, LEV systems are required to undergo regular testing by a qualified and competent professional.
We offer comprehensive inspections and testing services to ensure your LEV systems and fume cupboards meet the highest safety standards.
- Local Exhaust Ventilation Systems (LEV)
- Capture Hoods and Workstations
- Ducted and Recirculatory Fume Cupboards
- Safety cabinets and negative pressure isolators can also be considered LEV equipment.
All of this testing provides the assurance that health & safety is suitably addressed.
To ensure the safety of the patients and Hospital Trusts, we offer a comprehensive verification service for ventilation systems serving:
- Surgery theaters
- Cytotoxic chambers and isolators
- Pharmacy & Radiopharmacy Cleanrooms
- IVF Suites

We provide specialized air quality testing for compressed gases used in cleanrooms, ensuring that the quality of the supply air does not affect the cleanliness, product integrity, or processes. Our testing covers key contaminants such as particles, oil, moisture and microbials, in line with industry standards.
Testing is performed in compliance with BS EN ISO 8573, and the European Pharmacopoeia.

Particle Counter Calibration acc ISO 21501-4 : 2018
Link Lab Ltd provides a high standard of service. This is achieved by having a fully equipped facility based in Athens to support our customers in Greece , Cyprus and near countries.
Aerosol particle counters must undergo calibration in accordance with the stringent requirements of ISO 21501-4:2018, which involves verifying and adjusting particle sizing, resolution, counting efficiency, flow rate, signal ratios, and zero count. Each calibration is performed using NIST-traceable standards, and a calibration certificate is issued for every calibration.
Our services are as follows:
- In-House Particle Counter Calibrations
- Particle Counter Calibration to ISO 21501-4 (on compliant particle counters)
- In-House calibration on Air Samplers
- In-House calibration of anemometers, differential manometers, temperature and humidity sensors
- Traceable reference units for Aerosol particle counters
Particle Counter Calibration includes:
- Particle counter adjustments back to factory standards
- Certificate of calibration issued for each instrument
- Preventative maintenance
- Instrument condition (as found and as left data available)
- NIST traceable standards