increase of the environmental, mechanical, electrical, EMC, or operational extremes above the worst case levels predicted over the specified product lifetime for the purpose of design margin demonstration
NOTE 1 Margins can include an increase in level or range, an increase in duration or cycles of exposure, as well as any other appropriate increase in severity.
NOTE 2 This definition is not applicable for thermal aspects. Refer to ECSS-E-ST-31 for "qualification margin".
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