Tool vibration measurement vs risk assessment
Tool vibration measurement estimates the magnitude transmitted during representative use. The employer’s risk assessment also needs actual trigger time, combined daily exposure, action-value comparison and control decisions. One measurement cannot substitute for that wider decision.
Check my situationMatch the method to the information gap
Where reliable representative tool data exists, HSE does not require direct measurement merely to complete a risk assessment. Where data is missing or unsuitable, a competent person can measure the relevant tools and tasks.
- Does the quote include an inventory and actual hands-on trigger-time study?
- Is the tool data representative of the material, operator and task?
- Will the report calculate combined daily exposure and specify controls?
What to do next: Ask providers to show which tools will use existing data and which need measurement. Require the final report to state data sources, uncertainty, worker exposure and controls rather than delivering only a meter table.
Tool measurements
A measurement records vibration under a particular operating condition. HSE notes that operator technique, tool condition, material and method can change the result. That limits how confidently one reading can represent all work.
Exposure calculation
The assessment combines representative vibration magnitude with trigger time for each tool and worker. HSE provides a calculator and exposure-points method to compare the result with the daily action and limit values.
Control decision
The employer must reduce risk, record an action plan and review when work changes. A provider should distinguish exposure assessment from clinical HAVS health surveillance, which needs appropriate occupational-health input.