ONSITE SURFACE TABLE CALIBRATION
UKAS-Certified Surface Table Calibration – Fully Traceable
At PASS Ltd, we provide UKAS-accredited onsite calibration for granite and cast iron surface tables and inspection plates across the UK. Our expert engineers ensure full traceability, ISO-compliant accuracy, and audit-ready results, keeping your critical equipment precise without leaving your site.
What is Surface Table Calibration?
Surface table calibration is the process of verifying the flatness and accuracy of a surface plate or inspection table. Over time, wear, loading, and environmental conditions can cause deviations. Regular calibration ensures:
- Accurate measurement results
- Compliance with ISO quality standards
- Reduced risk of product defects
- Confidence in inspection processes
Types of Surface Tables We Calibrate
At PASS, we provide professional calibration services for a wide range of surface tables and inspection equipment. Our expertise includes:
- Granite surface plates (all grades and sizes)
- Cast iron surface tables
- Large inspection plates
- CMM base tables and precision inspection platforms
No matter the size or material, we ensure every table is measured accurately, providing a reliable baseline for your quality control processes.
When Should You Calibrate a Surface Table?
Maintaining measurement accuracy is essential. While annual calibration is standard best practice, there are other key moments when recalibration is recommended:
Key Calibration Times
- After relocation or installation
- Following heavy use or impact
- When measurement inconsistencies are suspected
Regular calibration ensures your inspection results remain consistent, helping prevent costly errors or rework.
Our Calibration Method
We use industry-recognised methods and high-precision instrumentation to deliver reliable results. Our process combines narrative explanation with grid-based measurements:
Techniques We Use
- Electronic/digital levels – for accurate grid mapping
- Autocollimator methods – for high-precision flatness evaluation
- Repeat measurement verification – ensures reliability and consistency
What We Measure
By measuring across a defined grid pattern, we identify:
- Overall flatness deviation
- Localised high or low points
- Wear patterns across the surface
This approach provides a complete, visual map of your table’s condition, allowing informed maintenance and quality decisions.
Standards & Compliance
All calibrations are carried out under strict compliance with recognised standards:
Standards Followed
- ISO/IEC 17025 (UKAS-accredited framework)
- Relevant DIN, BS, and ISO flatness standards
- PASS internal quality procedures
Documentation
Our fully compliant documentation is suitable for:
- ISO 9001 audits
- Aerospace and automotive quality systems
- Internal quality assurance records
This ensures your calibration results are traceable, professional, and audit-ready.
What You Receive
After calibration, you will receive a comprehensive set of documents designed for clarity and usability:
- UKAS-accredited calibration certificate
- Detailed measurement grid report
- Flatness results with tolerances
- Pass/fail status with recommendations (if required)
All reports are professional, easy to understand, and ready for both internal and external audits.
Why Choose PASS for Surface Table Calibration?
Selecting PASS means choosing accuracy, compliance, and minimal disruption:
- Onsite Calibration – No Downtime – We calibrate in place to keep your operations running.
- UKAS Accredited or Traceable – All work is fully traceable or in line with ISO/IEC 17025 standards.
- Nationwide Coverage – Our engineers operate across the UK, delivering consistent high-quality service.
- Fast Turnaround – Quick onsite calibration and certification to minimise operational impact.
Book Your Onsite Surface Table Calibration
Ensure your inspection equipment remains accurate, compliant, and reliable. Contact us or call 01642 626144 today to schedule your onsite calibration and maintain the highest standards in measurement and quality.