What are the characteristics of the protective clothing and mask Leakage Test System?

The protective clothing and mask Leakage Test System uses "inward leakage (%)", which is the ratio of the concentration of pollutants in the ambient atmosphere to the concentration of pollutants in the suit, to evaluate the quality of protective clothing.

standard:

GB/T 29511-2013 Protective Clothing Anti-Solid Particle Chemical Protective Clothing 4.3.1, Appendix A

GB 2626-2019 Respiratory protection non-powered air-purifying particulate respirator 6.4

Appendix B of GB 19083-2010 Technical Requirements for Medical Protective Masks

ISO 13982,

BS EN ISO 13982,

In EN149,

EN1073-1-2016

What are the characteristics of the protective clothing and mask Leakage Test System

A standard aerosol of sodium chloride particles is generated in the test chamber, where subjects wearing test protective clothing perform a predetermined test exercise. Measure inward leakage at each sampling location within the garment by flame photometry. We use the following indicators to judge the quality of protective clothing.

- Lijimn: endoleak given a test subject (i), suit (j), movement (m) and sampling location (n)

-Cijmn: aerosol concentration measured at a sampling point within a suit given a test subject (i), suit (j), movement (m) and sampling location (n)

-LS: total inward leakage per garment (average across all exercises and sampling locations)

-LH: total inward leakage per human subject (averaged for that subject over all movements, sampling locations and clothing worn)

-LE: total inward leakage per exercise (average across all suits and sampling locations)

-Lp: total inward leakage per sampling location (average across all sets and exercises)

-LEP: total inward leakage per sample location and per movement (average across all sets)

-: Average total inward leakage (average across all subjects, garments, exercises and sampling locations)