Melt blown cloth is the core material for filtering bacteria in masks. Medical masks have three layers, and the melt blown cloth is the middle layer, which has strong filtration, shielding, and insulation properties, and can play a role in sterilization and virus isolation. Therefore, melt blown fabric testing plays a crucial role in controlling the quality of masks. So, how do we do melt blown fabric testing? What are the testing items

The testing items of melt blown cloth include: particle filtration efficiency (PFE), bacterial filtration efficiency (BFE), longitudinal breaking strength, transverse breaking strength, longitudinal breaking elongation, transverse breaking elongation, air resistance, permeability, unit area deviation, appearance, width, microbial indicators, etc

Testing standards:

ASTMF2100:19 Medical Mask Material Performance Standard Specification

FZ/T 64078 2019 Melt Blown Non woven Fabric

FZ/T 64034 2014 Melt Blown Fabric

GB/T 32610 2016 (Technical Specification for Daily Protective Masks) GB 2626-2019 (Self priming filter type anti particle respirator) GB19083-2010 (Technical Requirements for Protective Masks) YY0469-2011 (Technical Requirements for Medical Surgical Masks) EN 149-2001+A1-2009 (EU requirements for protective masks) EN14683:2019+AC: 2019 (European Union requirements for medical masks)

Test indicators:

1. ASTMF2100:19 Medical Mask Material Performance Standard Specification

ASTMF2100:19 Medical Mask Material Performance Standard Specification. The pressure difference of 80 items marked with * needs to be subcontracted. 2. FZ/T 64078-2019 Melt Blown Non woven Fabric

FZ/T 64078-2019 Melt Blown Non woven Fabric Appearance Quality 3 meters * 0.5 meters/Width Deviation/Unit Area Mass Deviation Rate/Unit Area Mass Variation Coefficient/Breaking Strength (Longitudinal and Transverse)/Longitudinal and Transverse Elongation/Thickness/Filtration Efficiency/Air Permeability/Flame retardancy/Restricted Substances/

3 FZ/T 64034-2014 Melt Blown Cloth

FZ/T 64034-2014 Melt Blown Cloth Appearance Quality 3 meters Unit Area Quality Deviation Rate Breaking Strength (Longitudinal, Transverse) Longitudinal and Transverse Breaking Elongation Rate Hydrostatic Permeability Microbial Indicators (6 Indicators)

The above article is a partial list. For more testing needs and details, please consult the online consultant of the free consulting agency: 152  0173  3840 (phone and WeChat), conducting testing on over a hundred inspection websites - issuing authoritative testing reports has legal effect

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