IEST-RP-CC001 is a recommended practice issued by the Institute of Environmental Sciences and Technology (IEST). It provides guidelines for the classification, test, and evaluation of HEPA and ULPA filters used in cleanroom and contamination-controlled environments.
“IEST-RP-CC001 defines the recommended procedures for evaluating high-efficiency air filters in terms of filtration performance and leakage integrity.”
Filter efficiency is determined by measuring the concentration of test aerosol particles upstream and downstream of the filter.
Typical test aerosols include PAO (polyalphaolefin), DOP equivalent oils, and other liquid aerosols suitable for photometric detection.
The standard provides guidance for filter integrity verification through scanning methods. A scanning probe is moved across the downstream surface of the filter while monitoring particle concentration. Local increases in concentration indicate potential leaks in the filter media, frame, or seal.
|
Standard |
Messa a fuoco |
|
EN1822 |
MPPS efficiency classification |
|
ISO29463 |
International HEPA/ULPA filter testing |
|
IEST-RP-CC001 |
Recommended practices for HEPA/ULPA filter evaluation |
Following standardized procedures ensures consistent filter performance and reliable contamination control. IEST-RP-CC001 is commonly used during:
IEST-RP-CC001 plays an important role in maintaining cleanroom performance by providing recommended practices for verifying filter integrity and efficiency.
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