HSE website 5th line down
are of the wrong material for corrosion conditions; fail the 6kN load test;
are set in a structure that is clearly non-structural and incapable of taking the shock load,
at an edge distance that is unsafe or below the minimum recommended at the time of installation,
- in a position that allows excessive free fall or insufficient free space;
are set externally when windows are accessed internally;
whose anchor points cannot be removed for examination or stand away