Workers in various industries, especially those engaged in the treatment and nursing of the injured or sick in the healthcare industry, are prone to contact with biological fluids that can transmit diseases. Diseases caused by various microorganisms pose serious threats to life and health, particularly blood-borne diseases that can lead to hepatitis B (HBV) and hepatitis C (HCV), as well as acquired immunodeficiency syndrome (AIDS) caused by the human immunodeficiency virus (HIV). Since engineering controls cannot eliminate all possible contact, attention has been focused on the use of protective clothing to reduce skin contact between these microorganisms and medical staff.
Due to the diversity of healthcare institutions, activities, and potential situations of exposure to blood or body fluids, the barrier requirements for protective clothing may vary according to application scenarios.
YY/T 0689-2008 Blood and Body Fluid Protection Equipment - Test Method for Resistance of Protective Clothing Materials to Penetration by Blood-borne Pathogens - Phi-X174 Phage Test Method. This standard specifies a laboratory test method for determining the resistance of protective clothing materials to penetration by blood-borne pathogens.

LFY-718 Protective Clothing Antiviral Penetration Tester
GB 19082-2009 Technical Requirements for Disposable Medical Protective Clothing. The liquid barrier performance specified in this standard includes the requirements of the following 4 test methods:
1. Water Resistance
Samples shall be taken from the key parts of protective clothing and tested in accordance with the hydrostatic pressure test specified in GB/T 4744-1997, with the hydrostatic pressure not less than 1.67kPa (17cmH₂O).

LFY-217B Fabric Hydrostatic Pressure Tester
2. Water Vapor Transmission Rate
Protective clothing materials shall be tested in accordance with Method A (Hygroscopic Method) specified in GB/T 12704-1991, with the water vapor transmission rate not less than 2500g/(m²•d).

LFY-216B Fabric Water Vapor Transmission Rate Tester
3. Resistance to Synthetic Blood Penetration
The resistance of protective clothing materials to synthetic blood penetration shall not be lower than Grade 2 (1.75kPa).

LFY-228 Medical Protective Clothing Synthetic Blood Penetration Tester
4. Surface Water Repellency
The outer surface of protective clothing materials shall be tested in accordance with the spray test specified in GB/T 4745-1997, meeting the requirement of a spray rating of not less than Grade 3.

LFY-214 Fabric Surface Water Repellency Tester