YY/T 0866-2024: Total inward leakage(TIL) determination method of protective face mask for medical use

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Scope

This document describes the test method for total inward leakage of protective face mask for
medical use.
This document applies to the total inward leakage test and evaluation of protective face mask
for medical use (hereinafter referred to as the mask). The leakage test and evaluation of other
biological protective devices for medical use may take this document as a reference.

Basic Data

Standard ID	YY/T 0866-2024 (YY/T0866-2024)
Description (Translated English)	Total inward leakage(TIL) determination method of protective face mask for medical use
Sector / Industry	Medical Device and Pharmaceutical Industry Standard (Recommended)
Classification of Chinese Standard	C48
Classification of International Standard	11.140
Word Count Estimation	18,161
Date of Issue	2024-09-29
Date of Implementation	2025-12-01
Older Standard (superseded by this standard)	YY/T 0866-2011
Issuing agency(ies)	State Drug Administration
Summary	This standard specifies the test method for the total leakage rate of medical protective masks. This standard applies to the test and evaluation of the total leakage rate of medical protective masks. The leakage rate test and evaluation of other medical biological protection devices can refer to this standard.