🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN ISO 14644-17:2021

BS EN ISO 14644-17:2021

$167.15

Cleanrooms and associated controlled environments – Particle deposition rate applications

Published By Publication Date Number of Pages
BSI 2021 36
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document gives direction on the interpretation and application of the results of the measurement of particle deposition rate on one or more vulnerable surfaces in a cleanroom as part of a contamination control programme. It provides some instructions on how to influence the particle deposition rate and reduce the risk of particle contamination on vulnerable surfaces.

This document gives information on how a cleanroom user can use the particle deposition rate measurements to determine limits that can be set for macroparticles on vulnerable surfaces. It also gives a risk assessment method by which an acceptable risk of deposition of particles onto vulnerable surfaces in a cleanroom can be established and, when this is not achieved, methods that can be used to reduce the particle deposition rate.

An alternative to the particle deposition rate is the particle obscuration rate which determines the rate of increase of coverage of particles onto an area of surface over time. The particle obscuration rate can be used in an analogous way to the particle deposition rate and the required particle obscuration rate for a specified surface can be calculated and the risk from deposited particles reduced.

This document does not:

  • provide a method to classify a cleanroom with respect to particle deposition rate or particle obscuration rate;

  • directly consider the deposition of microbe-carrying particles, although they can be treated as particles;

  • give any consideration to surface deposition by contact as, for example, when personnel touch a product and contamination is transferred.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
11 4 Symbols
12 5 Particle deposition rate methodology
5.1 General
5.2 Establishing the particle deposition rate required for control of particle deposition on vulnerable surfaces
13 5.3 Particle deposition rate for demonstrating control of particle contamination
6 Measurement of particle deposition rate
14 7 Particle deposition rate level
15 8 Documentation
16 Annex A (informative) Measurement of particle deposition rate
20 Annex B (informative) Examples of particle deposition rate measurements
24 Annex C (informative) Measurement of the particle obscuration
27 Annex D (informative) Relationship between particle deposition rate and airborne concentration of particles
28 Annex E (informative) Assessment and control of particle deposition
33 Bibliography

Related products

BS EN ISO 14644-17:2021
$167.15