GSAB – Global Standard Accreditation Board provides independent and impartial accreditation to Thermal Calibration Laboratories in accordance with ISO/IEC 17025.
Our accreditation process ensures laboratories demonstrate technical competence in temperature and thermal parameter calibration, validated methods, reliable measurement results, and internationally traceable temperature standards.
What Do Thermal Calibration Laboratories Do?
Thermal calibration laboratories calibrate and verify temperature-measuring instruments and thermal control systems to ensure accuracy, stability, and traceability. They determine:
-Accuracy of temperature measurement devices
-Deviation and correction factors
-Measurement uncertainty
-Compliance with specified tolerances
-Performance across defined temperature ranges
-Traceability to national or international standards
These laboratories support industries such as:
-Pharmaceuticals & Healthcare
-Food Processing & Cold Chain
-Laboratories & Research Institutions
-Petrochemical & Oil & Gas
-Power Plants & Energy Sector
-Aerospace & Automotive
-Manufacturing & Process Industries
Typical Thermal Calibration Services Performed
Depending on their scope, laboratories may conduct:
-Thermometer calibration (digital, liquid-in-glass, bimetallic)
-Thermocouple calibration (all types – J, K, T, R, S, etc.)
-RTD (Resistance Temperature Detector) calibration
-Temperature indicator and controller calibration
-Temperature transmitter calibration
-Data logger and temperature recorder calibration
-Temperature bath and dry block calibrator verification
-Environmental chamber temperature mapping
-Oven, furnace, and incubator calibration
-Autoclave temperature validation
-Cold room and refrigerator mapping
-Surface temperature probe calibration
GSAB verifies that all calibration methods are validated, measurement uncertainty is properly calculated, and traceability is established through national or international temperature standards.
Who Can Apply?
Thermal calibration accreditation is suitable for:
-Independent calibration laboratories
-In-house industrial calibration facilities
-Pharmaceutical validation laboratories
-Government metrology laboratories
-Research and testing institutions
-Engineering and maintenance service providers
-Contract calibration service providers
Accreditation Criteria
GSAB accredits thermal calibration laboratories based on:
-ISO/IEC 17025
-Applicable ILAC mandatory documents
-National and international metrology requirements
-Regulatory and industry-specific requirements (where applicable)
Accreditation confirms:
-Technical competence of calibration personnel
-Validated calibration procedures
-Proper reference standards and traceability
-Accurate estimation of measurement uncertainty
-Environmental control and monitoring
-Equipment maintenance and intermediate checks
-Effective internal quality control
-Risk-based management system implementation
GSAB follows a structured and transparent accreditation process:
1. Application & Scope Definition
The laboratory submits a defined calibration scope including temperature ranges, parameters, and measurement capabilities (CMC).
2. Document Review
Evaluation of:
-Quality Manual
-Calibration procedures
-Uncertainty calculation records
-Traceability documentation
-Proficiency testing or inter-laboratory comparison participation
-Environmental monitoring records
-Internal audit and management review records
3. On-Site Assessment
-Evaluation of laboratory environment (temperature stability, humidity control)
-Witnessing of calibration activities
-Review of reference standards and traceability chain
-Personnel competence evaluation
-Review of equipment maintenance and intermediate checks
4. Corrective Actions & Technical Review
-Review of nonconformities
-Verification of corrective action effectiveness
-Independent technical review prior to accreditation decision