ISO 14644-4:2022 – Cleanroom, Design & Construction
Not all particles are the same; not all cleanrooms are the same. There are different standardized classes of cleanrooms based on the number and size […]
air cleanliness
ASHRAE Standards
The American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) is an international organization representing over 50,000 members. As a standards-developing organization, ASHRAE is […]
Changes to ASHRAE 52.2-2017
ASHRAE 52.2-2017 – Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size has been released, revising and superseding the 2012 version […]
ISO 14644-2 2015 Revision of ISO 14644-2:2000
This revision of ISO 14644-2 2015 Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration emphasizes the need to consider a […]