Based on performance under the CDTM01 testing programme, doors can be classified against BS EN 12400: Windows and Doors – mechanical durability – requirements and classification. The classification is expressed as a category of duty:
|Category of duty
The requirements for each test reflects the doorset’s intended level of duty. Similar variations exist for strength and dimensional demands and these are reflected in the test programme requirements.The testing represents ‘reasonable’ use and abuse. If vandalism is likely to be a factor it is possible to carry out additional, more onerous, testing to reflect the sort of deliberate abuses associated with these activities.