IEST expands calibration procedures for cleanroom testing equipment
Publishes a new version of IEST-RP-CC013.3
The US Institute of Environmental Sciences and Technology (IEST) has published a new and expanded edition of IEST-RP-CC013.3: Calibration Procedures and Guidelines for Select Equipment Used in Testing Cleanrooms and Other Controlled Environments.
The Recommended Practice (RP) provides step-by-step procedures for calibrating and verifying equipment used in characterising cleanrooms.
In addition to photometers, aerosol generators, and anemometers, which were discussed in the previous edition of the RP, the revision includes procedures for calibrating the following equipment:
- airflow capture hoods
- temperature measurement systems and devices
- pressure and vacuum gauges
- polymicrosphere generators
- aerosol diluters
- condensation nuclei counters
It also provides guidance for determining intervals of calibration and includes a handy table of recommended intervals for each type of equipment.
Developed by a Working Group of industry experts, this document was originated to provide calibration and verification procedures for certain instruments used to characterise cleanrooms and for other high-efficiency particulate air (HEPA) filtration testing devices. The RP includes references for related equipment testing standards and published procedures.