f) Temperature of the gas handled at the fan inlet for normal operation relevant for the fan performance, and the maximum and minimum temperatures for which the fan is to be designed.g) Dust, mist or vapour content of gas at fan inlet for normal operation, the properties of these, and their maximum content. Information as to whether the dust, mist or vapour is combustible, noxious, aggressive or sticky.h) Maximum permissible A-weighted sound power level, in A-weighted decibels, as specified in ISO 13347-1.i) Maximum permissible levels of mechanical vibration in service, as specified in ISO 14694.j) System characteristic, if necessary.k) Design speed cycles: i.e. the number of speed cycles per 24 h, the range of speed, if variable speed, plus the total number of start-stops the fan is to be designed for.