The test principle of liquid penetration resistance tester is as follow: place the sample on the tester, add the test suspension liquid and begin the test under prescribed time and pressure. Based on this test method, the tester still can detect the live virus penetrating through the material under the condition of invisible liquid penetration, and supplements the shortcomings of visual penetration test.

Liquid penetration resistance tester is a classic instrument , specially designed for the resistance of medical protective clothing to penetration by liquid such as blood. The fluid penetration ability of the protective clothing material resistant to virus blood was tested by the hydrostatic pressure test method. It is used to test anti-penetration performance of the protective clothing against blood and body fluids, blood pathogens (with Phi-X 174 antibiotic test), synthetic blood, etc.
 
Application
 Liquid penetration tester can test protective materials against liquid penetration, including gloves, protective clothing, outer cover, coveralls, boots, etc. .

Standards
 ASTM F1670 Standard Test Method for Resistance of Materials Used in Protective Clothing to Penetration by Synthetic Blood.
ASTM F1671 Standard Test Method for Resistance of Materials Used in Protective Clothing to Penetration by Blood-Borne Pathogens Using Phi-X174 Bacteriophage Penetration as a Test System.
ASTM F903  Standard Test Method for Resistance of Materials Used in Protective Clothing to Penetration by Liquids
 ISO 16603:2004 Clothing For Protection Against Contact With Blood And Body Fluids - Determination Of Resistance Of Protective Clothing Materials To Penetration By Blood And Body Fluids - Test Methods Using Synthetic Blood.
ISO 16604:2004 Clothing for protection against contact with blood and body fluids - Determination of resistance of protective clothing materials to penetration by blood-borne pathogens - Test method using Phi-X 174 bacteriophage.
YY/T 0699-2008 Clothing for protection against liquid chemicals--Determination of the resistance of protective clothing materials to penetration by liquids under pressure.
YYT 0689-2008 Clothing for protection against contact with blood and body fluids --Determination of the resistance of protective clothing materials to penetration by blood-borne pathogens- Test method using Phi-X 174 bacteriophage.
GB 19082-2009 Technical requirements of disposable medical protective clothing.

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