No. 1,Tech 9th Road,High & New Tech Development Zone,Songshan Lake,DongGuan City,Guangdong Province
Home ProductsLab Testing Equipment

Medical Face Mask H2O/Cm² Pressure Difference Tester

Certification
China Dongguan Hust Tony Instruments Co.,Ltd. certification
China Dongguan Hust Tony Instruments Co.,Ltd. certification
HTI is a reliable supplier of furniture testing machine,I have known her and buy from the factory since 2009.

—— David Hale

We receive the machine and it is so good ,my boss want to import other models again.

—— Kimpoh

I really would like to work with HTI, their professional service on the testing machine and reliable products help me win much market!

—— Ricardo

We recommend this supplier to all of you ,They are reliable and professional instruments manufacturer

—— Rodolfo Castello

Really appreciate their professional service on the laboratory solution and reliable products help me win much market!

—— Romeu

I'm Online Chat Now

Medical Face Mask H2O/Cm² Pressure Difference Tester

Medical Face Mask  H2O/Cm² Pressure Difference Tester
Medical Face Mask  H2O/Cm² Pressure Difference Tester Medical Face Mask  H2O/Cm² Pressure Difference Tester

Large Image :  Medical Face Mask H2O/Cm² Pressure Difference Tester

Product Details:
Place of Origin: Made In China
Brand Name: HUST TONY INSTRUMENTS
Payment & Shipping Terms:
Minimum Order Quantity: one set
Price: 3000-4000
Packaging Details: standard exported plywood case
Delivery Time: 20 working days
Detailed Product Description
High Light:

20kpa face mask breathability tester

,

0.5% face mask breathability tester

Medical Face Mask Air Exchange Pressure Difference Tester-Differential Pressure(H2O/cm²)according to MIL-M-36954C

 

Description:

Medical Mask Differential Pressure Tester or medical face mask breathability tester, used to measure the gas exchange pressure difference of medical surgical masks and other products. Standards compliant: YY 0469-2011 medical surgical mask 5.7 pressure difference YY / T 0969-2013 disposable medical masks 5.6 ventilation resistance EN 14683: 2014 Medical face masks -Requirements and test methods

 

Applications:

 

Medical Mask Differential Pressure Tester or medical face mask breathability tester, is a lab testing instrument for determination breathability of medica face masks, the test principle is, through measuring the differential pressure required to draw air through a measured surface area at a constant air flow rate, to test the air exchange pressure of the medical face mask material, which indicates the breathability of medical face masks.

Built-in water-filled differential manometer is used to measure the differential pressure, a mass flow meter is used for measurement of the airflow. An electric vacuum pump draws air through the medical mask breathability tester and a needle valve is used to adjust the airflow rate.

 

Standards:

MIL-M-36954C

YY0469-2011 the pressure difference of the medical surgical mask is 5.7
YY/ t0969-2013 ventilation resistance 4.6 in disposable surgical mask

 

 

Specifications:

 

1. Test power source: the principle of negative pressure vacuum test
2. Air flow: 8L / min;
3. Temperature range: room temperature
4. Sensor accuracy: 0.5%
5. Maximum pressure regulation: 20kpa
6. Machine weight: 25kg
7. Sealing method: O-ring seal;
8. Sample breathable caliber: Φ25mm;
9. Differential pressure sensor range: 0 ~ 500pa;
10. Display mode: Digital display pressure difference;
11. Power supply: 220V, 50Hz.

 

Test principle:
(1) Vacuum pump is used to realize the power source of the test product;
(2) The internal and external pressure measurement of the product is realized by using tooling and fixture, with built-in differential pressure sensor;
(3) The case adopts the form of all-in-one machine with built-in vacuum pump and digital display meter to realize automatic pressure detection and automatic display
(4) Equipped with special jig, convenient for testing products;

 

 

Standard requirements:
(1) Number of samples: 5
(2) Test process: the flow rate of the test gas shall be adjusted to 8L/min. The diameter of the sample test area is 25mm and the test area is 4.9cm2.
(3)Test results: yy0469-2011 and YY/ t0969-2013 both stipulated that the ventilation resistance, namely the pressure difference of gas exchange between the two sides of the mask should not be greater than 49Pa/cm2 for total gas exchange.

ΔP=M/A
In the equation
ΔP--------Experimental sample area pressure difference per square centimeter (Pa/cm²)
M---------Experimental sample pressure difference (Pa)
A---------Experimental sample test area (cm²)

 

 

Contact Details
Dongguan Hust Tony Instruments Co.,Ltd.

Contact Person: Linmei

Tel: 86-13421721188

Send your inquiry directly to us (0 / 3000)