DIN ISO 15767:2010-10

The standard provides recommendations for controlling the uncertainty associated with aerosol collection medium instability. In this regard, collection medium or substrate refers to any article used to collect particles (e. g. filter or foam material) as well as those supporting elements which must be analysed by weighing. Results are compiled here as obtained both from the literature or, if necessary and feasible, through laboratory experiment. Expected uncertainty associated with given aerosol capture methods are quantified where possible. Recommendations as to materials to be used are given. Means of controlling or correcting uncertainty arising instability are provided. Recommendations as to the weighing procedure are given. Finally, a procedure for estimating weighing uncertainty is described.