<p class="MsoNormal"><span lang="EN-GB">This part of ISO 17420 is applicable to an unassisted filtering device and specifies a standard thread connection between a filter and the respiratory interface as required in ISO 17420-2.</span></p>
<p class="MsoNormal"><span lang="EN-GB">This part of ISO 17420 also includes the description of test simulators that are necessary for the assessment of some of the requirements.</span></p>
Registration number (WIID)
55788
Scope
<p class="MsoNormal"><span lang="EN-GB">This part of ISO 17420 is applicable to an unassisted filtering device and specifies a standard thread connection between a filter and the respiratory interface as required in ISO 17420-2.</span></p>
<p class="MsoNormal"><span lang="EN-GB">This part of ISO 17420 also includes the description of test simulators that are necessary for the assessment of some of the requirements.</span></p>
