Torque Calibration

• Product Quality & Safety – Proper torque ensures fastener integrity, preventing leaks, fatigue failures, and warranty claims. • Regulatory Compliance – FDA, FAA, ISO 13485, AS9100, and GMP guidelines all require documented torque control. • Audit Readiness – Routine, accredited calibration demonstrates due diligence and reduces non‑conformities.

ParameterRangeUncertainty (k = 2)Method / Standard Click & Beam Wrenches0.2 N·m – 2,000 N·m (0.1 lbf·in – 1,475 lbf·ft)≤ 0.5 % of readingISO 6789‑1:2017, Method A Dial & Indicating Wrenches0.2 N·m – 1,100 N·m≤ 0.3 % of readingISO 6789‑1:2017, Method B Torque Screwdrivers5 cN·m – 6 N·m≤ 0.4 % of readingISO 6789‑1:2017 Digital Torque Testers (verification)Up to 2,500 N·m≤ 0.25 % of full scaleISO 17025 internal SOP‑TW‑03 All measurements are traceable to the International System of Units (SI) through NIST.

• Procedures conform to ISO 6789‑1:2017 & ISO 6789‑2:2017 • Equipment verified daily with dead‑weight torque transducers and controlled environmental conditions (20 ± 2 °C) • Comprehensive measurement uncertainty budgets maintained and available upon request

1. Intake & Inspection – Visual check, serial capture, functional test. 2. Environmental Stabilization – Minimum 2 h at 20 °C ± 1 °C, 40 – 50 % RH. 3. Pre‑Adjustment Verification – Up to 12 points across range; data logged. 4. Adjustment & Repair – OEM‑specified techniques; replacement parts stocked. 5. Final Verification – Repeatability, direction, and angle (if applicable). 6. Certificate Generation – Includes as‑found/as‑left data, uncertainty, traceability tree, technician signature. 7. Label & Seal – Calibration sticker with due date and unique asset ID.

ServiceDescriptionTypical Turnaround In‑Lab StandardShip or drop‑off at Union City lab3 – 5 business days Express (24 h)Priority processing, weekend available1 day On‑Site CalibrationMobile trailer services SF, Oakland, San Jose corridorsSame day Pick‑Up & DeliveryDoor‑to‑door by VCS driver1 – 3 days Flexible annual or semi‑annual calibration programs with automated reminders keep you compliant without paperwork headaches.

• Aerospace & Defense • Medical Devices & Biotech • Semiconductor Manufacturing • Automotive R&D and Motorsports • Renewable Energy & Battery Gigafactories

• PDF certificate with digital signature • As‑found / As‑left data & uncertainty budget • Calibration label and tamper‑evident seal • Asset history stored in our secure portal (24/7 access) • Free technical support on torque application best practices