YY 1887-2023 in English

Analysis of the core standards of medical positive pressure protective clothing

According to the YY1887-2023 standard, medical positive pressure protective clothing (PPPC) is a full-body protective equipment used in high-risk medical environments, which must meet the dual functions of aerosol protection and liquid barrier. The standard specifies 23 categories of technical indicators from material performance to system functions, among which the key requirements include:

Details of key technical requirements

1. Material performance matrix

The standard adopts a grading system to evaluate protective clothing materials:

• Physical properties: A 6-level grading system is used to evaluate tear strength, breaking strength and other indicators
• Liquid barrier: Resistance to hydrostatic pressure is divided into 5 levels (level 2 and above meet the requirements), and resistance to synthetic blood penetration is divided into 6 levels

2. Core system requirements

Key points of the test method

Key test item process

Implementation suggestions

Medical Institution Selection Guide

1. Environmental Matching:Select the corresponding protection level according to the risk level (e.g. Ebola protection requires level 4 liquid barrier)
2. Human-machine engineering:Focus on evaluating the adaptability of the 12 actions in Appendix A of practical performance
3. Maintenance points:Pay attention to the sterilization requirement of ethylene oxide residue ≤10μg/g

Technology Development Trends

The standard reflects three major technological evolutions: ①From static protection to dynamic pressure management (peak pressure ≤2000Pa required) ②From single filtration to intelligent monitoring (forced low air supply volume prompt function) ③From basic protection to human-computer interaction (call performance ratio>0.8 requirement)