Surface Plate Calibration Services
Quality Testing Calibration (QTC) provides ISO/IEC 17025 accredited surface plate calibration services for manufacturers, laboratories, and inspection departments that rely on flatness for dimensional verification. Proper surface plate calibration supports reliable inspection results, consistent measurement setups, and audit-ready quality documentation.
Our surface plate calibration services are performed under an accredited quality system with traceability to the International System of Units (SI) through NIST. Calibration certificates include documented results and uncertainty suitable for compliance and internal quality programs.
ISO/IEC 17025 Accredited & NIST-Traceable
QTC performs surface plate calibration under ISO/IEC 17025 accreditation as recognized by A2LA. Accredited capability and uncertainty are defined in our official scope:
View Accreditation Scope (PDF).
For technical background on flatness measurement methods used in dimensional metrology, reference the NIST publication on flatness measurement methods.
Accredited Surface Plate Calibration Range
Per QTC’s current A2LA Scope of Accreditation (Cert. No. 4699.01), accredited surface plate calibration:
| Parameter | Accredited Range | CMC (±) |
|---|---|---|
| Surface Plates – Flatness | 12 to 102 in diagonal | (58 + 3.1DL) µin |
| Surface Plates – Repeat Measurement | 0.00001 to 0.001 in | 64 µin |
In the CMC expression above, DL represents diagonal length (in inches), as defined by the scope notes. Actual measurement uncertainty may vary depending on the plate and calibration conditions.
Surface Plate Calibration Methods
Surface plate calibration is performed using controlled flatness measurement methods with appropriate reference standards and procedures. The process verifies the plate’s condition for inspection and measurement setups used in production and quality programs.
- Flatness verification with documented results
- Repeat measurement verification where applicable
- Uncertainty reported in accordance with ISO/IEC 17025
- Certificates suitable for audits and quality records
If your surface plate calibration program requires specific reporting formats, acceptance criteria, or decision rules, those requirements can be addressed at the time of quote.
On-Site & In-House Surface Plate Calibration
QTC offers calibration services to match your operational needs. Field calibration availability depends on the service and scope requirements.
- In-house surface plate calibration performed at our Nicholasville, KY laboratory (where applicable)
- On-site surface plate calibration available where applicable
- Documentation formatted for compliance and audit readiness
For interval control, record management, and scheduling support, review our Gage Management Services.
Industries We Support
Surface plate calibration supports dimensional inspection programs across regulated and performance-driven industries, including:
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Request a Quote for Surface Plate Calibration
To request a quote for surface plate calibration, provide the plate size, type/material, location (in-house or on-site), and any documentation requirements. Our team will confirm turnaround expectations and reporting format. Contact QT Calibration to get started.
Clients that choose us for gage management services.
