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Non-Critical Defect

Non-Critical Defect

Referenced initially in Australian Standard AS 1851:2012 a non-critical defect is a form of defect or fault that adversely affects the operation of an item of equipment but not rendering the system inoperative or defective.  A non-critical defect does not typically escalate in severity (i.e. become a critical defect) and its failure does not place people at significant risk (death or injury) or an a building (or asset) at significant risk (loss or damage) of from fire or related emergency.

Australian Standard AS 1851 introduced the terms non-conformance, non-critical defect and critical defect in the 2012 edition of the Standard. The definition was accompanied by a flowchart (Figure 1.5.6 - Routine Service Activity Failure) to illustrate the difference between each of these terms.

AS1851 2012 Critical Defect Non Conformance Flowchart - Table 1.5.6 Routine Service Activity Failure


    In preparing this definition, we have drawn from various sources including Legislation, Codes, Standards and industry information, research and knowledge.  Like the english language, these definitions may subtly change from time to time. As such these definitions are provided solely on the basis that users will be responsible for making their own assessment of the definition and and are advised to verify all relevant representations, statements and information.