Scale and Balance Calibration

Quality Testing Calibration (QTC) provides ISO/IEC 17025 accredited scale and balance calibration services for laboratories, manufacturers, and industrial operations that require accurate weighing results. Accredited calibration supports product quality, compliance requirements, and documented measurement confidence for audit readiness.
Our scale and balance calibration services are performed under an accredited quality system with traceability through calibrated reference standards. Certificates include documented results suitable for compliance and internal quality programs.
ISO/IEC 17025 Accredited & NIST-Traceable
QTC performs scale and balance 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 weighing device requirements and terminology, see NIST Handbook 44.
Accredited Scale and Balance Calibration Range
Per QTC’s current A2LA Scope of Accreditation (Cert. No. 4699.01), accredited scale and balance calibration is listed as:
| Parameter | Accredited Range | CMC (±) |
|---|---|---|
| Scales & Balances | 0.01 to 100 g | (0.08 + 0.0022Wt) mg |
| Scales & Balances | >100 to 1000 g | (1.6 + 0.0018Wt) mg |
| Scales & Balances | >1000 to 80,000 g | (160 + 0.0058Wt) mg |
| Scales & Balances | 0.5 to 1000 lb | 0.013% of reading |
In the CMC expressions above, Wt represents weight in the above. Actual measurement uncertainty may vary depending on the specific device and calibration conditions.
Scale and Balance Calibration Methods
Scale and balance calibration is performed using appropriate test loads and documented procedures to verify performance across applicable points of use. Calibration supports traceable measurement confidence for weighing operations used in production and quality programs.
- Performance verification across applicable ranges
- Documented results and uncertainty reporting under ISO/IEC 17025
- Certificates suitable for audits and quality records
If your 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 Service Options
QTC offers calibration services to match your operational needs. Field service availability depends on the service and scope requirements.
- In-house service performed at our Nicholasville, KY laboratory (where applicable)
- On-site service 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
Scale and balance calibration supports regulated and performance-driven industries, including:
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Request a Quote for Scale and Balance Calibration
To request a quote, provide the device type, capacity/range, 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.


