This European Standard specifies performance requirements for battery powered pumps used for personal sampling of chemical agents in the workplace atmosphere.It also specifies the methods of laboratory type testing for determination of the performance characteristics under prescibed laboratory conditions. This European Standard is applicable to pumps whose nominal volumetric flow rate is within the range 5 ml/ min to 5 l/ min and which are used together with sampling devices typical for such flow rates for the sampling of gases, vapours, dusts, fumes, mists and fibres.