Health & Safety
HAVS is cumulative and irreversible, and it is caused by exposure nobody was adding up. Gaffer records each worker's exposure by tool — duration, the manufacturer's declared value, the value you actually work to, and the resulting daily A(8) — and flags where it crosses the action or limit value.
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A record per worker and tool, so exposure accumulates against a person rather than disappearing into a job sheet.
Both the manufacturer's declared vibration value and the actual value in use are stored. Real-world exposure is usually higher, and working from the brochure figure is how HAVS cases get missed.
Daily exposure A(8) is recorded with explicit flags for exceeding the exposure action value and the exposure limit value, so a breach is a field rather than an interpretation.
Records attach to the worker, so exposure builds a history for that person — which is what health surveillance decisions actually need.
Vibration exposure records connect to your noise and vibration assessments and health surveillance in one platform.
Hand-arm vibration syndrome is permanent damage to nerves, blood vessels and joints in the hands and arms caused by prolonged use of vibrating tools. It is irreversible, it is one of the most common causes of successful civil claims against trade employers, and it is entirely preventable by managing exposure.
The exposure action value is 2.5 m/s² A(8) — above it you must control exposure and provide health surveillance. The exposure limit value is 5 m/s² A(8), which must not be exceeded. Gaffer flags both against each record.
Because they usually differ. Declared values come from standardised tests that rarely match a worn tool cutting real material. Storing both means you can show you were not relying on an optimistic figure.
No. Exposure records tell you who needs health surveillance and why. The surveillance itself — questionnaires, assessments and referrals to an occupational health professional — is tracked separately in Gaffer's health surveillance records.
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