Safety factor f1 for duty counting (ISO 12482:2014).
|N°||Method of duty recording||f1|
|1||Automatic recording system, 4.2 a), or Counters and manual documentation, 4.2 b)||1,0|
|2||Estimation based upon a special, documented process, 4.2 c)||1,1|
|3||Estimation based upon documented production of the crane site, 4.2 d)||1,2|
|4||Estimation based upon undocumented, estimated production of the crane site, 4.2 e)||1,3|
|5||Crane duty history is unknown, 4.2 f)||1,5|
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