BS EN ISO 14644-1:2015:2016 Edition
$189.07
Cleanrooms and associated controlled environments – Classification of air cleanliness by particle concentration
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 48 |
This part of ISO 14644 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.
This part of ISO 14644 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).
This part of ISO 14644 cannot be used to characterize the physical, chemical, radiological, viable or other nature of airborne particles.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | European foreword |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 3.1 General |
| 10 | 3.2 Airborne particles |
| 11 | 3.3 Occupancy states 3.4 Testing instrumentation (see Annex F) |
| 12 | 3.5 Instrument specifications 4 Classification 4.1 Occupancy state(s) 4.2 Particle size(s) 4.3 ISO Class number |
| 13 | 4.4 Designation 4.5 Intermediate decimal cleanliness classes and particle size thresholds |
| 14 | 5 Demonstration of compliance 5.1 Principle 5.2 Testing 5.3 Airborne particle concentration evaluation 5.4 Test report |
| 16 | Annex A (normative) Reference method for classification of air cleanliness by particle concentration |
| 21 | Annex B (informative) Examples of classification calculations |
| 30 | Annex C (informative) Counting and sizing of airborne macroparticles |
| 35 | Annex D (informative) Sequential sampling procedure |
| 42 | Annex E (informative) Specification of intermediate decimal cleanliness classes and particle size thresholds |
| 44 | Annex F (informative) Test instruments |
| 45 | Bibliography |
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BS EN ISO 14644-1:2015 – TC:2020 Edition
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