Cleanliness level and bacteria concentration detection standard of hospital operation department
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Technical Specification for Construction of Clean Operation Department of Hospital
GB 50333-2013
• Cleanliness level 5 ambient air is greater than or equal to 0.5μm, the number of particles is greater than 350 particles/m³ (0.35 particles/L) to less than or equal to 3500 particles/m³ (3.5 particles/L); the number of particles greater than or equal to 5μm is 0 particles/ L
• Cleanliness level 6 ambient air with a particle size greater than or equal to 0.5 μm is greater than 3500 particles/m³ (3.5 particles/L) to less than or equal to 35200 particles/m³ (35.2 particles/L); a particle number greater than or equal to 5 μm is equal to or less than 293 particles /m³ (0.3 grains/L)
• Cleanliness level 7 ambient air is greater than or equal to 0.5μm, the number of particles is greater than 35200 particles/m³ (35.2 particles/L) to less than or equal to 352000 particles/m³ (352 particles/L); the number of particles greater than or equal to 5μm is greater than 293 particles/ m³ (0.3 grains/L) to less than or equal to 2930 grains/m³ (3 grains/L)
• Cleanliness level 8 ambient air with a particle size of 0.5 μm or more is greater than 352,000 particles/m³ (352 particles/L) to less than or equal to 3520000 particles/m³ (3520 particles/L); particles greater than or equal to 5 μm are greater than 2930 particles/ m³ (3 grains/L) to less than or equal to 29300 grains/m³ (29 grains/L)
• Cleanliness grade 8.5 ambient air is greater than or equal to 0.5μm, the number of particles is greater than 3520000 particles/m³ (3520 particles/L) to less than or equal to 11120000 particles/m³ (11200 particles/L); the number of particles greater than or equal to 5μm is greater than 29300 particles/ m³ (29 grains/L) to less than or equal to 92500 grains/m³ (92 grains/L)
