scope:

This standard specifies construction and performance requirements, and test methods for surgical masks intended to limit the transmission of infective agents from staff to patients and (in certain situations vice-versa) during surgical procedures in operating theatres and other medical settings with similar requirements.
This standard is not applicable to masks intended exclusively for the personal protection of staff.
NOTE 1 Standards for masks for use as respiratory personal protective equipment are available.
NOTE 2 Annex A provides information for the users of surgical masks.