Mask Tester Experimental System Of Microbial Penetration In Dry
State For Operation Sheet
Experimental System Of Microbial Penetration In Dry State For
Operation Sheet, Operation Clothes And Clean Clothes
The ZR-1070 system consists of gas source generation system,
detection main body, protection system and control system.
It is composed of a series of components, which are used for the
dry state microbial penetration test of operation sheet, operation
clothes and clean clothes.
Face Mask Detector Technology Advantage
Negative pressure test system, with fan exhaust system and high
efficiency filter in and out of the air, to ensure the safety of
Special operation software, with software parameter calibration,
fault detection and automatic protection function;
Industrial grade high brightness color touch screen;
High brightness lighting lamp is built in the cabinet;
Built in leakage protection switch to protect the safety of
The inner layer of the cabinet is made of stainless steel, and the
outer layer is sprayed with cold-rolled sheet;
Heat preservation and flame retardant between inner and outer
The front opening and closing glass door is convenient for the
experimental personnel to observe and operate;
Detachable support, easy to handle;
Support and move the dual-purpose caster.
Experimental System Of Microbial Penetration In Dry State Parameter
|Main parameter||Parameter range|
|Vibration form||Pneumatic ball vibrator|
|Vibration frequency||20800 times/min|
|Negative pressure cabinet ventilation flow||≥5m3/min|
|Filter efficiency of high efficiency filter||≥ 99.99%|
|Negative pressure range of cabinet||(-50～-200)Pa|
|Table size||(length 400×width 400×height 10)mm|
|Worktable media||Marble slab, each corner supported by 4 rubber columns|
|Experimental vessel||6 stainless steel experimental containers|
|Data storage capacity||1000 groups|
|Working power supply||AC220V±10%,50Hz|
|Overall dimensions||(length 1000×width 685×height 1380)mm,Including bracket|
|Operating weight||about 120kg|
|Power consumption of the whole machine||＜2000W|
Bacterial Filtration Efficiency and Particle Filtration Efficiency
are probably the most important tests to be conducted on medical
textile products such as surgical masks, gowns or caps, as well as
on air filters.
The BFE test is meant to measure the resistance of the materials
and components of above described medical devices to bacteria
penetration.Reported as percent efficiency, the higher the
number,According to Annex B of EN 14683:2019, BFE is tested a the
more effective the barrier.
BFE Testing Method
A specimen of the mask material is clamped between a six-stage
cascade impactor and an aerosol chamber.
An aerosol of staphylococcus aureus is introduced into the aerosol
chamber and drawn through the mask material and the impactor under
The bacterial filtration efficiency (BFE) of the mask is determined
by the number of colony forming units that pass through the medical
face mask material, which are expressed as a percentage of the
number of colony forming units present in the challenge aerosol.
The BFE of the medical face mask shall conform to the minimum value
given for the relevant type of mask.
In products such as masks, frequently consisting of two or more
components –usually with different composition-, each layer is
tested separately. The lowest performing layer is the one
determining the BFE value for the whole product comprehensively.
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