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ISO 14644-2: Specifications for testing and monitoring to prove continued compliance with ISO 14644-1 [3] ISO/DIS 14644-2.2(2014): Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration [5] ISO 14644-3: Test Methods [3] ISO 14644-4: Design, Construction, and Start-up [3] ISO 14644-5 ...
Cleanroom suitability describes the suitability of a machine, operating utility, material, etc. for use in a cleanroom, where air cleanliness and other parameters are controlled by way of technical regulations in accordance with ISO 14644.
Small numbers refer to ISO 14644-1 standards, which specify the decimal logarithm of the number of particles 0.1 μm or larger permitted per m 3 of air. So, for example, an ISO class 5 cleanroom has at most 10 5 particles/m 3. Both FS 209E and ISO 14644-1 assume log-log relationships between particle size and particle concentration.
ISO 15769:2010 Hydrometry – Guidelines for the application of acoustic velocity meters using the Doppler and echo correlation methods ISO/IEC 15771:1998 Information technology – Telecommunications and information exchange between systems – Private Integrated Services Network – Specification, functional model and information flows ...
This committee writes the ISO 14644 standards. IEST is also a founding member of the ANSI-accredited US TAG to ISO/TC 229 - Nanotechnologies. [2] IEST has also revised such Federal Standards as FED-STD-209, MIL-STD-781, MIL-STD-810, and MIL-STD-1246 (now IEST-STD-1246E). [3] The IEST also distributes to the public all ISO 14644 and ISO 14698 ...
The ASHRAE Handbook is the four-volume flagship publication of the nonprofit technical organization ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers [a]).
HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. "Refrigeration" is sometimes added to the field's abbreviation as HVAC&R or HVACR, or "ventilation" is dropped, as in HACR (as in the designation of HACR-rated circuit breakers).
ASHRAE was founded in 1894 at a meeting of engineers in New York City, formerly headquartered at 345 East 47th Street, and has held an annual meeting since 1895. [4] Until 1954 it was known as the American Society of Heating and Ventilating Engineers (ASHVE); in that year it changed its name to the American Society of Heating and Air-Conditioning Engineers (ASHAE). [5]