INTRODUCTION TO ASYCUDA++ Ó UNCTAD - SITE (V1.15) 1.15 Health and Safety Introduction Many countries have adopted laws or guidelines on the minimum health and safety requirements for  work  with  display  screen  equipment.  Guidelines  are  in  the  interests  of  the  health  of  the individual, and also in the organisation's interests as regards productivity and costs. Example guidelines, relating to equipment - its position, location, and use - are given below: Display Screen ·     The characters on the screen will be well-defined and clearly formed, of adequate size and with adequate spacing between lines and characters; ·     The image will be stable, with no flicker; ·     The brightness, contrast and screen background will be easily adjustable by the user; ·     The screen must able to tilt and swivel easily to suit the user; ·     The screen to be free of reflected glare and reflections that could cause discomfort to the user. Keyboard ·     The keyboard shall be able to be tilted and separate from the screen, to allow the user to find a comfortable position for the hands and arms; ·     There will be sufficient space in front of the keyboard to allow support for the hands and arms; ·     The keyboard will have a matt surface to avoid glare; ·     The keyboard will be arranged in such a way so as to make it easy to use; ·     The keyboard will be legible. Work Surface ·     Large enough to be able to locate all equipment and documents necessary; ·     The document holder to be adjustable and stable so as to minimise head and eye movements; ·     There will be enough space available to allow users to work comfortably. Work Chair ·     The chair will be stable and allow for easy movement. ·     The seat will be height adjustable. ·     The seat back will be both height and tilt adjustable. ·     A footrest will be available if required. The Office Environment Apart  from  the  equipment  in  immediate  use  (i.e.  the  computer,  chair  and  desk)  the  surroundings within the office are also very important from the point of view of both safety and productivity e.g. lighting and temperature.