Full Description

This Recommended Practice covers basic provisions for HEPA (high efficiency particulate air) and ULPA (ultra-low penetration air) filter units as a basis for agreement between buyers and sellers.

Filters that meet the requirements of this Recommended Practice (RP) are suitable for use in clean air devices and cleanrooms that come within the scope of Federal Standard 209 and for use in supply air and contaminated exhaust systems for which extremely high filter efficiency (99.97% or higher) for sub-micrometer particles is required.

Six levels of performance and six grades of construction are included in this discussion. The buyer's purchase order should specify the level of performance and grade of construction required. The buyer should also specify the filter efficiency required if it exceeds the basic level (99.97%).

Note: Products and procedures contained in this Recommended Practice may involve hazardous materials, operations, and equipment. This RP does not purport to address all of the safety problems associated with its use. It is the responsibility of the user to consult and establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use of this RP.

Product Details:

Published: 07/01/1995