Basic terms of knowledge purification

1 The number of dust particles with cleanliness class 100 greater than or equal to 0.5 μ m 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 dust particles with cleanliness class 100 greater than or equal to 5 μ m is 0 2 The number of dust particles with a cleanliness class of 1000 is more than 3500 particles / m3 (3.5 particles / L) and less than 35000 particles / m3 (35 particles / L), and the number of dust particles with a cleanliness class of 1000 is less than or equal to 300 particles / m3 (0.3 particles / L) 3 The number of dust particles with a cleanliness class of 10000 is greater than or equal to 35000 particles / m3 (35 particles / L) and less than or equal to 350000 particles / m3 (350 particles / L); the number of dust particles with a cleanliness class of 10000 is greater than or equal to 300 particles / m3 (0.3 particles / L) and less than or equal to 3000 particles / m3 (3 Particles / L) 4 The number of dust particles with a cleanliness class of 100000 and above is more than 350000 particles / m3 (350 particles / L) to less than 3500000 particles / m3 (3500 particles / L); the number of dust particles with a cleanliness class of 100000 and above is more than 3000 particles / m3 (3 particles / L) to less than 30000 particles / m3 (30 particles / L) 5 The number of dust particles with the cleanliness of 300000 class is more than 3500000 particles / m3 (3500 particles / L) and less than or equal to 10500000 particles / m3 (10500 particles / L); the number of dust particles with the cleanliness of more than or equal to 5 μ m is more than 30000 particles / m3 (30 particles / L) and less than or equal to 90000 particles / m3 (90 particles / L) 6 Clean operating department is a self-contained functional area composed of clean operating room, clean auxiliary room and non clean auxiliary room 7 As built clean room has been built and ready for operation, with all facilities and functions of purification and air conditioning, but there is no room for equipment and personnel 8 Clean room (static) at rest clean room the indoor purification air conditioning facilities and functions are complete If there are process equipment, the process equipment has been installed and can be operated, but there is no staff in the clean room 9 Clean room under normal operation and normal operation of personnel 10 The local clean zone with cleanliness class 100 is an area with cleanliness class 100 established in the indoor local area by one-way flow 11 Upper class limit upper class limit upper limit Zui of dust concentration 12 Airborne bacterial concentration is short for airborne bacterial concentration The colony number (CFU) of the sampling medium is obtained by culture, which represents the number of planktonic bacteria in the air 13 Sedimentation bacterial concentration The number of colonies (CFU) obtained by culture after covering the 90 mm diameter Petri dish exposed to air for 30 min represents the number of bacteria that can settle down in the air 14 The density of surface contaminated bacteria is the CFU obtained by wiping the surface with a specific method and culturing according to the requirements, which represents the number of bacteria contaminated on the surface, PCs / cm2 15 Abbreviation of colony forming units of CFU 16 Self cleaning time under the condition of specified air change times, the time for the clean operating room to recover from the low cleanliness level after pollution (such as after shutdown or one operation) to the inherent static high cleanliness level (such as the level required after startup or before another operation), min 17 Basic equipment refers to the basic facilities related to the layout and building installation of the operating room, excluding the special, mobile and temporary medical equipment 18 Completion acceptance the construction party shall check and approve the construction and installation quality of the clean operation Department after the basic parameters of the purified air conditioner are qualified after the commissioning by the construction party 19 Comprehensive performance evaluation the third party shall comprehensively test and evaluate the grade index and technical index of the clean operation department that has been completed and accepted 20 Operating zone the operating table and its surrounding area that need special protection The operating area of level I operating room refers to the area 0.9m less on both sides of the operating table and 0.4m less on both ends (including the operating table); the operating area of level II operating room refers to the area 0.6m less on both sides of the operating table and 0.4m less on both ends (including the operating table); the operating area of level III operating room refers to the area 0.4m less on four sides of the operating table (including the operating table) Domain Grade IV operating room is not divided into operation area and peripheral area Each side of the operation area of grade I ophthalmic operation room shall not be less than 1.2m 21 Surrounding zone clean operating room other than the operating area 22 Ordered gradient pressure Shanghai Sujing Industrial Co., Ltd if you need anything, you can contact us at any time Thank you very much for your support and look forward to your cooperation Thank you & best guard! 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