Mass / Weights Calibration Services
Quality Testing Calibration (QTC) provides ISO/IEC 17025 accredited mass calibration services for organizations that require accurate, traceable mass standards for laboratory and production environments. Accredited mass calibration supports audit readiness, consistent measurement performance, and documented compliance for quality programs.
Our mass calibration services are performed under an accredited quality system with traceability through calibrated reference standards. Certificates include documented measurement uncertainty suitable for compliance and internal quality programs.
ISO/IEC 17025 Accredited & NIST-Traceable
QTC performs mass 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 general reference on weight standards and classifications, see OIML R 111-1 (Weights).
Accredited Mass Calibration Range
Per QTC’s current A2LA Scope of Accreditation (Cert. No. 4699.01), accredited mass calibration:
| Parameter | Accredited Range | CMC (±) |
|---|---|---|
| Mass – Class 5 | 1 to 100 g | (0.11 + 0.0020Wt) mg |
| Mass – Class 5 | >100 to 1000 g | (1.4 + 0.0026Wt) mg |
| Mass – Class 5 | >1000 to 5000 g | (6.1 + 0.0058Wt) mg |
| Mass – Class 5 | >5000 to 30,000 g | (160 + 0.0087Wt) mg |
In the CMC expressions above, Wt represents weight, as defined by the scope notes. Actual measurement uncertainty may vary depending on the specific standards submitted and calibration conditions.
Mass Calibration Methods
Mass calibration is performed using controlled comparison methods against appropriate reference standards and procedures. The process supports traceable corrections and documented uncertainty for use in laboratory and quality environments.
- Documented results with accredited uncertainty (CMC)
- Traceability through calibrated reference standards
- Certificates suitable for audits and quality records
If your program requires specific reporting formats, acceptance criteria, or decision rules, those requirements can be addressed at the time of quote.
On-Site & In-House Service Options
QTC offers calibration services to match your operational needs. Field service availability depends on the service and scope requirements.
- In-house mass calibration performed at our Nicholasville, KY laboratory
- Documentation formatted for compliance and audit readiness
For interval control, record management, and scheduling support, review our Gage Management Services.
Industries We Support
Mass calibration supports quality and compliance programs across multiple industries, including:
Related Services
Request a Quote for Mass Calibration
To request a quote, provide the standard type/class, nominal values (within the accredited ranges shown above), quantity, 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.
