Foreword
1      Scope     
2      Normative references 
3      Terms, definitions, symbols and abbreviated terms   
4      Classification
5      Requirements
6     Marking, lagelling and packaging
Annex A (informative) Information for user
Annex B (informative) Method for in vitro determination of bacterial filtration efficiency
Annex C (informative) Method for determination of breathability(differential pressure)
Annex D (informative) Microbial cleanliness
Annex ZA (informative)Relationship between this European Standard and the essential requirements of Directive 93/42/EEC[1993 OJL169] aimed to be covered
Bibliography    84