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Document detailing calibration, tests, and acceptance criteria.

Third-party witness of calibration/tests.

Final sign-off sheet completed by the site supervisor confirming calibration safety and cleanliness standards. Filed with contract documentation for auditing.

Web dashboard showing calibration and maintenance status of all vehicles. Gives management live KPI oversight for compliance.

Form used by supervisors to record calibration checks nozzle condition and water-system pressure. Demonstrates compliance with ISO 9001 and local-authority QA schemes.

Small metal jar used to collect binder or emulsion samples on site. Retained for laboratory testing to verify compliance with BS 434 and DMRB requirements.

Digital log recording calibration noise and emission checks for each unit. Submitted monthly to fleet managers to demonstrate compliance with ISO 9001 protocols.

Fast-acting ball/butterfly valve in circuits.

Four-head beacon for high visibility.

Hard mineral used in high‑friction surfacing mixes.