" This European Standard deals with the indoor environmental parameters for thermal environment, indoor air quality, lighting and acoustic. " This standard specifies how to establish indoor environmental input parameters for building system design and energy performance calculations. " This standard includes design criteria for the local thermal discomfort factors. draught, radiant temperature asymmetry, vertical air temperature differences, floor surface temperature. " This standard is applicable where the criteria for indoor environment are set by human occupancy and where the production or process does not have a major impact on indoor environment. " This standard specifies occupancy schedules to be used in standard energy calculations. " This standard specifies how different categories of criteria for the indoor environment can be used. But does not require certain criteria to be used. This is up to national regulations or individual project specifications. " The criteria in this standard can also be used in national calculation methods. This standard sets criteria for the indoor environment based on existing standards and reports listed under normative references or in the bibliography. " The standard does not prescribe design methods, but give input parameters to the design of buildings, heating, cooling, ventilation and lighting systems