Torque Wrench Declaration of Conformance

A conformance check (ISO 6789-1) verifies that a torque wrench meets the manufacturer’s specified tolerance at defined test points.

A calibration (ISO 6789-2) is more comprehensive. It includes environmental control requirements, defined measurement procedures, uncertainty evaluation, and formal traceability to national standards.

In short, a conformance check confirms performance. A calibration provides full measurement traceability and uncertainty.

Yes. A formal Declaration of Conformance certificate is issued for each tool. The certificate includes identification details, test points, results, & tolerance comparison.

Yes. Our reference torque standards are calibrated against equipment traceable to Australian national measurement standards. This creates an unbroken chain of comparison back to national references.

Traceability is critical. Without it, results cannot be substantiated during audits or investigations. Each step in the traceability chain is documented and maintained to ensure confidence in the final measurement result.

From a compliance and risk perspective, continued use of a failed tool is not advisable. An out-of-tolerance torque wrench can result in under-tightening or over-tightening.

Consequences may include joint failure, equipment damage, safety risks, or audit non-conformance. The cost of incorrect torque often exceeds the cost of proper compliance.

Conformance intervals depend on frequency of use, operating conditions, criticality of application, and internal quality system requirements.

A 12-month interval is common & recommended in general industry. However, high-use or safety-critical applications may justify shorter intervals.

Torque tools are precision mechanical devices subject to wear, fatigue, and drift. Springs relax. Components wear. Internal friction changes.

Regular conformance checks verifies the tools performance before errors accumulate. It supports quality system compliance, reduces liability exposure, and protects equipment from damage due to incorrect torque application.

After careful consideration, we have chosen not to offer onsite torque wrench verification services.

ISO 6789 (Parts 1 and 2) sets strict environmental requirements for verification. The standard requires the ambient temperature to be maintained between 18°C and 28°C, with the temperature remaining stable to within 1°C (1 Kelvin) during the verification process. In addition, the tool must be allowed to stabilise to the test environment before measurement begins.

In a controlled laboratory, this is straightforward. In a workshop, factory floor or mobile setup, it can be surprisingly difficult. Temperature can fluctuate due to air conditioning cycles, open roller doors, machinery, or even changes in weather. If the temperature drifts outside the permitted limits, the job must be stopped and restarted to remain compliant.

Rather than risk compromised results, we perform all calibrations in our controlled laboratory environment. This ensures every certificate issued is compliant with ISO 6789 and defensible during audits or quality reviews.

In short, we prioritise accuracy, traceability and compliance over convenience.

All calibrations are performed in a temperature-controlled laboratory environment in accordance with ISO 6789 requirements. The standard specifies an ambient temperature range of 18°C to 28°C, with temperature stability maintained within 1 Kelvin during testing.

Temperature is continuously monitored. If environmental conditions drift outside permitted limits, testing must be paused or restarted to maintain compliance. This controlled approach ensures repeatable, reliable and standard-compliant results.

Turnaround time depends on workload and whether repairs are required. Standard jobs are typically completed within 24 to 48 hours.

Tools requiring parts replacement or complex repair may take longer, particularly if components must be sourced from overseas manufacturers. We aim to provide realistic time frames rather than optimistic estimates.

Advance booking is recommended, particularly for fleet calibrations or time-sensitive projects. Scheduling tools in advance allows us to manage laboratory capacity and minimise downtime.

However, individual tools can often be accommodated without formal booking.

Yes. We regularly manage compliance programs for workshops and industrial fleets. Tools can be processed in structured batches to reduce operational disruption.

Planned scheduling helps avoid the common problem of large numbers of tools falling due simultaneously.

Yes. We service customers throughout Australia. Tools can be securely packaged and shipped to our laboratory for calibration and repair.

We recommend appropriate packaging to prevent transport damage, particularly for precision tools.