A. Overview

The face mask synthetic blood penetrability tester is used to determine the resistance of medical protective masks to the penetration of synthetic blood under different test pressures.

B. Testing Principles:

Spray a certain amount of synthetic blood on the one side of the mask in a horizontal direction at a certain pressure and distance, and observe the penetration of synthetic blood on the other side of the mask.

C. Applicable Standards:

GB/T19083-2010: Technical requirements for protective face mask for medical use

YY0469-2011: Surgical mask

YY/T 0691-2008: Clothing for protection against infectious agents - medical face masks - test method for resistance against penetration by synthetic blood

D. Technical Parameters

1.     Spray Distance: 300mm~305mm adjustable

2.     Nozzle Diameter: 0.84mm

3.     Spray Speed: 450cm/s, 550cm/s, 635cm/s

4.     Spray Pressure: 10.6 kPa (80 mmHg), 16 kPa (120 mmHg), 21.3 kPa (160 mmHg)

5.     Power Supply: 220V 50Hz

6.     Ambient Temperature: 10-35℃

7.     Relative Humidity: 20—90%RH (nice ventilation conditions are required)

8.     Air Pressure: 0.6MPA

E. Features:

1.     The convex fixture can simulate the actual use condition of the face mask, leaving a test target area for spraying synthetic blood without destroying the sample.

2.     The specialized constant pressure spray device can spray a certain volume of synthetic blood in a given time.

3.     It can fully simulate the spray speed corresponding to the average blood pressure of the human body 10.6kPa, 16kPa, and 21.3kPa for testing.

4.     The tester is equipped with a fixed target plate, which can block the high-pressure edge part of the sprayed flow that increases the accuracy and repeatability of the liquid sprayed on the sample.

F. Components:

1.     Air pressure control system (1 Set)

2.     Face mask installation fixture (1 Set)

3.     Splash Proof glass cover (1 Set)