The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
For each test, report the following:
a) that the test was carried out in accordance with this International Standard;
b) identification of the medical face mask and the medical face mask material tested;
c) selected test blood pressures and volumes, and velocities of synthetic blood used, if different from those specified in this test method;
d) description of target area(s) tested;
e) distance of the face mask target area surface from the tip of the canula and the angle of the pneumatic valve with respect to the face mask target area, if different from those specified in this test;
f) description of any technique used to enhance visual detection of synthetic blood;
g) temperature and relative humidity for both conditioning and testing;
h) description of any pre-treatment techniques used;
i) “pass” or “fail” for each specimen at each test pressure;
j) highest pressure corresponding to a stream velocity for which the medical face mask demonstrates an acceptable quality limit of 4,0 %;
k) whether the targeting-plate method was used.
NOTE：An acceptable quality limit of 4,0 % is met for a single sampling plan when 29 or more of the 32 tested specimens show “pass” results.
