The document applies to linear detachable keyboard designed for stationary use. It provides guidance on the design of keyboards used of typical office tasks so that the limitations and capabilities of users are considered. It provides guidance based on ergonomic factors for keyboard layout arrangements, the physical characteristics of the individual keys and the overall design of the housing containing the keys. This standard also specifies methods for testing conformance by measuring the physical attributes of a keyboard and gives an alternative test method for keyboards based on user performance test. It contains technical definitions such as e. g. cursor, cursor keys, dished profile keyboard, flat profile keyboard, home row, home row height, keyboard profile keyboard slope, key displacement, key force, key roll over, layout, numeric keypad and visual display terminal (VDT) as well as usability-related definitions such as e. g. diffuse reflection, specular reflection, feedback and satisfaction.