GSAB – Global Standard Accreditation Board provides independent and impartial accreditation to Acoustics and Vibration Calibration Laboratories in accordance with ISO/IEC 17025.
Our accreditation process ensures laboratories demonstrate technical competence in sound and vibration measurement calibration, validated calibration methods, reliable measurement results, and internationally traceable standards.
What Do Acoustics and Vibration Calibration Laboratories Do?
Acoustics and vibration calibration laboratories calibrate and verify instruments used to measure sound pressure levels, noise exposure, vibration amplitude, frequency, and dynamic motion. They ensure:
-Accuracy of acoustic and vibration measuring instruments
-Frequency response performance
-Sensitivity and linearity verification
-Measurement repeatability and stability
-Measurement uncertainty estimation
-Traceability to national or international acoustic and vibration standards
These laboratories are essential in industries where noise control, structural integrity, and dynamic performance monitoring are critical.
Industries supported include:
-Environmental Monitoring
-Occupational Health & Safety
-Aerospace & Defense
-Automotive & Transportation
-Construction & Infrastructure
-Manufacturing & Heavy Industry
-Research & Engineering Laboratories
Typical Acoustics and Vibration Calibration Services Performed
Depending on their scope, laboratories may conduct:
-Sound level meter calibration
-Acoustic calibrator (pistonphone) calibration
-Microphone calibration (laboratory and field microphones)
-Noise dosimeter calibration
-Octave band and frequency analyzer verification
-Accelerometer calibration
-Vibration meter calibration
-Vibration sensor and transducer calibration
-Shaker system calibration
-Modal analysis equipment verification
-Dynamic signal analyzer calibration
-Impact hammer calibration
-Structural vibration measurement system verification
GSAB verifies that all calibration methods are validated, reference standards are properly maintained, environmental conditions are controlled, and measurement uncertainty is accurately calculated with full traceability.
Who Can Apply?
Acoustics and vibration calibration accreditation is suitable for:
-Independent calibration laboratories
-Environmental and occupational monitoring laboratories
-Aerospace and automotive testing facilities
-Industrial maintenance and reliability laboratories
-Government metrology institutes
-Research and engineering institutions
-Contract calibration service providers
Accreditation Criteria
GSAB accredits acoustics and vibration calibration laboratories based on:
-ISO/IEC 17025
-Applicable ILAC mandatory documents
-International acoustic and vibration metrology guidelines
-Regulatory and occupational health standards (where applicable)
Accreditation confirms:
-Technical competence of calibration personnel
-Validated acoustic and vibration calibration procedures
-Proper reference standards (acoustic calibrators, reference microphones, standard accelerometers)
-Controlled laboratory environment (temperature, humidity, background noise, vibration isolation)
-Measurement uncertainty evaluation
-Equipment maintenance and intermediate verification
-Participation in inter-laboratory comparisons
-Risk-based management system implementation
GSAB operates in accordance with ISO/IEC 17011, ensuring impartiality, technical rigor, and integrity in accreditation decisions.
GSAB follows a structured and technically rigorous accreditation process:
1. Application & Scope Definition
The laboratory submits a defined calibration scope including acoustic pressure levels, frequency ranges, vibration parameters, and declared Calibration and Measurement Capabilities (CMC).
2. Document Review
Evaluation of:
Quality Manual
-Acoustic and vibration calibration procedures
-Uncertainty budgets
-Traceability documentation
-Environmental monitoring records
-Proficiency testing or inter-laboratory comparison participation
-Internal audit and management review records
3. On-Site Assessment
Evaluation of acoustic chambers or vibration isolation systems
Verification of reference standards and traceability chain
Witnessing of live calibration activities
Assessment of personnel technical competence
Review of equipment maintenance and performance monitoring
4. Corrective Actions & Technical Review
Review of nonconformities
Verification of corrective action effectiveness
Independent technical review prior to accreditation decision