Why Using an A2LA Accredited Laboratory Matters for Your Testing and Calibration
Confidence in Every Test Result Starts with Accreditation
Whether you’re validating automotive components, qualifying aerospace materials, certifying medical devices, or calibrating critical laboratory equipment, the quality of your test data is only as good as the laboratory performing the work.
For manufacturers, inaccurate test results can lead to product recalls, certification delays, warranty claims, regulatory violations, or rejected shipments. That’s why organizations around the world rely on A2LA-accredited laboratories to provide testing and calibration services that are technically competent, traceable, and internationally recognized.
At Schap Specialty Machine, our testing equipment is used by laboratories that understand the importance of producing reliable, repeatable results. Many of these laboratories maintain A2LA accreditation and operate under ISO/IEC 17025, ensuring every measurement can withstand customer, regulatory, and OEM scrutiny.
What Is A2LA?
The American Association for Laboratory Accreditation (A2LA) is one of the world’s leading independent accreditation bodies. A2LA evaluates testing and calibration laboratories to determine whether they are technically competent to perform specific testing or calibration activities.
Unlike a simple quality certification, laboratory accreditation goes much further. It evaluates:
- Technical competence of personnel
- Calibration methods
- Measurement uncertainty
- Equipment maintenance
- Environmental controls
- Test procedures
- Traceability to national standards
- Quality management systems
- Internal audits
- Proficiency testing
Accreditation is granted only after a comprehensive assessment by technical experts and periodic surveillance audits to ensure ongoing compliance.
ISO/IEC 17025: The International Standard for Laboratory Competence
The foundation of A2LA laboratory accreditation is ISO/IEC 17025: General Requirements for the Competence of Testing and Calibration Laboratories.
ISO/IEC 17025 is recognized worldwide as the benchmark for laboratory quality and technical competence. It establishes requirements for laboratories to consistently produce valid and reliable testing and calibration results.
The standard addresses two primary areas:
Technical Requirements
ISO/IEC 17025 requires laboratories to demonstrate competence through:
- Qualified and trained personnel
- Validated testing methods
- Proper equipment maintenance and calibration
- Measurement uncertainty analysis
- Environmental monitoring
- Metrological traceability
- Quality assurance of test results
Management Requirements
The standard also requires an effective management system that includes:
- Document control
- Risk-based thinking
- Corrective and preventive actions
- Internal audits
- Management reviews
- Continuous improvement
- Customer feedback processes
Together, these requirements ensure that laboratory data are technically sound, repeatable, and defensible.
Why Accreditation Matters
Many companies assume that modern equipment automatically produces accurate results.
In reality, even sophisticated testing systems can generate inaccurate data if they are not properly maintained and calibrated.
Potential issues include:
- Drift in load cells or sensors
- Worn or damaged fixtures
- Poor environmental control
- Inconsistent testing procedures
- Improper operator training
- Missed calibration intervals
ISO/IEC 17025 accreditation ensures these risks are systematically controlled through documented procedures and ongoing oversight.
Traceability: The Foundation of Reliable Measurements
One of the most important requirements of ISO/IEC 17025 is metrological traceability.
Every reported measurement should be traceable through an unbroken chain of calibrations to recognized national or international standards, such as those maintained by the National Institute of Standards and Technology (NIST) in the United States.
For example, an automotive seat strength test may rely on:
- Calibrated load cells
- Verified displacement transducers
- Calibrated pressure instrumentation
- Certified data acquisition systems
- Calibrated torque tools
If any measurement device is inaccurate, the integrity of the entire test may be compromised.
Traceability provides confidence that reported results are both accurate and reproducible.
Why ISO/IEC 17025 Matters in Automotive Testing
Automotive manufacturers place enormous trust in laboratory data.
Testing is used to demonstrate compliance with standards such as:
- FMVSS 207 — Seating Systems
- FMVSS 210 — Seat Belt Assembly Anchorages
- FMVSS 225 — Child Restraint Anchorage Systems
- UNECE R14
- UNECE R17
- OEM-specific engineering specifications
These tests frequently involve:
- High structural loads
- Precision force measurements
- Deflection and displacement monitoring
- Fatigue cycling
- Environmental conditioning
- Fixture alignment and repeatability
Errors of only a few percent can determine whether a product passes or fails certification.
An ISO/IEC 17025-accredited laboratory minimizes these risks through validated procedures, calibrated equipment, and documented quality controls.
Calibration Is Just as Important as Testing
Testing equipment naturally changes over time.
Load cells, displacement transducers, torque sensors, pressure transducers, and temperature sensors all experience gradual changes in performance.
Regular calibration performed by an ISO/IEC 17025-accredited laboratory verifies:
- Accuracy
- Repeatability
- Measurement uncertainty
- Traceability to national standards
Without accredited calibration, confidence in test data steadily decreases, regardless of the quality of the equipment.
International Recognition
One of the greatest advantages of A2LA accreditation is global acceptance.
A2LA is a signatory to the International Laboratory Accreditation Cooperation (ILAC) Mutual Recognition Arrangement (MRA). As a result, accredited test reports are widely accepted by manufacturers, regulatory agencies, and customers throughout the world.
Benefits include:
- Reduced duplicate testing
- Faster customer approvals
- Simplified supplier qualification
- Lower certification costs
- Greater confidence during regulatory reviews
This international recognition is especially valuable for companies serving global automotive markets.
Supporting IATF 16949 and OEM Supplier Requirements
Many automotive manufacturers require suppliers to demonstrate laboratory competence as part of their quality management systems.
While IATF 16949 does not require every supplier laboratory to be independently accredited, it strongly encourages the use of laboratories that comply with ISO/IEC 17025. Internal laboratories must demonstrate competence that meets the intent of the standard, while external laboratories are often expected to hold recognized accreditation.
Using an A2LA-accredited laboratory helps suppliers satisfy customer-specific requirements by providing objective evidence that testing and calibration activities are performed by competent personnel using validated methods and calibrated equipment.
How Schap Specialty Machine Supports Accredited Laboratories
At Schap Specialty Machine, we design testing systems for laboratories where accuracy, repeatability, and compliance are essential.
Our equipment supports testing programs involving:
- FMVSS 207 Seating System Testing
- FMVSS 210 Seat Belt Anchorage Testing
- FMVSS 225 Child Restraint Anchorage Testing
- UNECE R14 Testing
- Durability and fatigue testing
- Research and development
- Product validation
Products such as the FAD1 and FAD2 fixture systems are engineered to provide precise positioning, repeatable load application, and reliable performance that complements the rigorous requirements of ISO/IEC 17025 laboratory operations.
When combined with accredited calibration and a robust quality management system, Schap equipment helps laboratories generate dependable data that customers can trust.
Questions to Ask Before Selecting a Laboratory
Before selecting a testing or calibration provider, consider the following:
- Is the laboratory A2LA accredited?
- Is the specific test method included within its accreditation scope?
- Are calibration certificates traceable to national standards?
- Is measurement uncertainty documented?
- How frequently is equipment calibrated?
- Are technicians qualified and trained?
- Does the laboratory participate in proficiency testing?
- Are testing procedures validated and regularly reviewed?
These questions can make the difference between reliable engineering data and costly mistakes.
Accreditation Is an Investment in Quality
Using an ISO/IEC 17025-accredited laboratory is more than a compliance exercise.
It is an investment in:
- Product safety
- Engineering confidence
- Regulatory compliance
- Reduced warranty risk
- Faster customer approvals
- Improved manufacturing quality
- International market acceptance
Reliable measurements lead to better engineering decisions, higher-quality products, and stronger customer confidence.
Final Thoughts
Whether you are validating a new automotive seat, calibrating force measurement equipment, or performing certification testing for global markets, the integrity of your results depends on the competence of the laboratory performing the work.
An A2LA-accredited laboratory operating in accordance with ISO/IEC 17025 provides assurance that testing and calibration activities are conducted using internationally recognized best practices, validated procedures, and traceable measurements.
At Schap Specialty Machine, we are proud to supply precision-engineered testing equipment to laboratories that demand the highest levels of accuracy and repeatability. Together with ISO/IEC 17025-accredited quality systems, our equipment helps manufacturers generate dependable data, demonstrate compliance, and deliver safer, higher-quality products to customers around the world.
