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Safety

Safety factor

The ratio between ultimate strength and permitted working stress or load under defined conditions.

Also known as: factor of safety

Reviewed

Hazards

  • The ratio between ultimate strength and permitted working stress or load under defined conditions.

Controls

  • Use the governing standard and qualified design; never invent a factor to justify undocumented equipment.

Personal protective equipment

  • Select task-specific PPE only after hazards and higher-order controls have been evaluated.

Regional considerations

  • Applicable law, permits, collective agreements, venue rules, and qualified-person decisions take precedence.

In practice

Use the governing standard and qualified design; never invent a factor to justify undocumented equipment.

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