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Full Description

ISO 14644-1:2015 specifies the classification of air cleanliness in terms of concentration of airborne particles in cleanrooms and clean zones; and separative devices as defined in ISO 14644-7.

Only particle populations having cumulative distributions based on threshold (lower limit) particle sizes ranging from 0,1 µm to 5 µm are considered for classification purposes.

The use of light scattering (discrete) airborne particle counters (LSAPC) is the basis for determination of the concentration of airborne particles, equal to and greater than the specified sizes, at designated sampling locations.

ISO 14644-1:2015 does not provide for classification of particle populations that are outside the specified lower threshold particle-size range, 0,1 µm to 5 µm. Concentrations of ultrafine particles (particles smaller than 0,1 µm) will be addressed in a separate standard to specify air cleanliness by nano-scale particles. An M descriptor (see Annex C) may be used to quantify populations of macroparticles (particles larger than 5 µm).

ISO 14644-1:2015 cannot be used to characterize the physical, chemical, radiological, viable or other nature of airborne particles.

 

Document History

  1. ISO 14644-1:2015

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    Cleanrooms and associated controlled environments - Part 1: Classification of air cleanliness by particle concentration

    • Most Recent
  2. ISO 14644-1:2015 Plus Redline


    Cleanrooms and associated controlled environments - Part 1: Classification of air cleanliness by particle concentration (includes Redline Version)

    • Historical Version
  3. ISO 14644-1 / 14644-2 Set


    Cleanrooms and associated controlled environments -- Part 1: Classification of air cleanliness and Part 2: Specifications for testing and monitoring to prove continued compliance with ISO 14644-1 - Save 10%

    • Historical Version
  4. ISO 14644-1:1999


    Cleanrooms and associated controlled environments -- Part 1: Classification of air cleanliness

    • Historical Version
  5. FED FED-STD-209E


    AIRBORNE PARTICULATE CLEANLINESS CLASSES IN CLEANROOMS AND CLEAN ZONES (SUPERSEDING FED-STD-209D) (S/S BY ISO14644-1-1999 AND ISO14644-2-2000)

    • Historical Version
  6. BS 5295-1:1989


    Environmental Cleanliness in Enclosed Spaces - Part 1: Specifications for Clean Rooms and Clean Air Devices

    • Historical Version
  7. FED FED-STD-209D


    CLEAN ROOM AND WORK STATION REQUIREMTENTS, CONTROLLED ENVIRONMENT (S/S BY FED-STD-209E)

    • Historical Version
  8. FED FED-STD-209


    AIRBORNE PARTICULATE CLEANLINESS CLASSES IN CLEANROOMS AND CLEAN ZONES (S/S BY FED-STD-209A)

    • Historical Version