GB/T 25915.1-2010
Cleanrooms and associated controlled environments.Part 1:Classification of air cleanliness (English Version)

Standard No.
GB/T 25915.1-2010
Language
Chinese, Available in English version
Release Date
2011
Published By
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status
 2022-03
Replace By
GB/T 25915.1-2021
Latest
GB/T 25915.1-2021
Scope
This part of GB/T 25915 classifies the air cleanliness level of clean rooms and related controlled environments only based on the concentration of airborne particles in them. The concentration refers to the total number of particles whose particle size is greater than or equal to the threshold (lower limit) The prescribed threshold (lower limit) particle size is 0.1 μm to 5 μm. This part does not establish the cleanliness level of the total number of particles other than the specified particle size of 0.1μm ~ 5μm. But U descriptor and M descriptor can be used to express the total number of ultrafine particles (<0.1μm) and large particles (>5μm) respectively. This section cannot be used to describe the physical, chemical, radioactive or survivable characteristics of airborne particles.

GB/T 25915.1-2010 history

  • 2021 GB/T 25915.1-2021 Cleanrooms and associated controlled environments—Part 1: Classification of air cleanliness by particle concentration
  • 2011 GB/T 25915.1-2010 Cleanrooms and associated controlled environments.Part 1:Classification of air cleanliness
Cleanrooms and associated controlled environments.Part 1:Classification of air cleanliness

GB/T 25915.1-2010 -All Parts

GB/T 25915.1-2021 Cleanrooms and associated controlled environments—Part 1: Classification of air cleanliness by particle concentration GB/T 25915.10-2021 Cleanrooms and associated controlled environments—Part 10: Classification of surface cleanliness by chemical concentration GB/T 25915.12-2021 Cleanrooms and associated controlled environments—Part 12: Specifications for monitoring of air cleanliness by nanoscale particle concentration GB/T 25915.13-2022 Cleanrooms and associated controlled environments—Part 13: Cleaning of surfaces to achieve defined levels of cleanliness in terms of particle and chemical classifications GB/T 25915.14-2022 Cleanrooms and Related Controlled Environments Part 14: Assessing Equipment Suitability by Particle Concentration GB/T 25915.15-2022 Cleanrooms and Related Controlled Environments Part 15: Suitability of Equipment and Materials Based on Gaseous Chemical Concentrations GB/T 25915.16-2024 Clean rooms and related controlled environments Part 16: Improving the energy efficiency of clean rooms and air purification units GB/T 25915.2-2021 Cleanrooms and associated controlled environments—Part 2: Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration GB/T 25915.3-2024 Clean rooms and related controlled environments Part 3: Testing methods GB/T 25915.4-2010 Cleanrooms and associated controlled environments.Part 4:Design,construction and start-up GB/T 25915.5-2010 Cleanrooms and associated controlled environments.Part 5:Operations GB/T 25915.6-2010 Cleanrooms and associated controlled environments.Part 6:Vocabulary GB/T 25915.7-2010 Cleanrooms and associated controlled environments.Part 7:Separative devices (clean air hoods,gloveboxes,isolators and minienvironments) GB/T 25915.8-2021 Cleanrooms and associated controlled environments—Part 8: Classification of air cleanliness by chemical concentration (ACC) GB/T 25915.9-2018 Cleanrooms and associated controlled environments—Part 9: Classification of surface cleanliness by particle concentration



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