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Historical
ANSI/ASHRAE 63.2-1996 (RA 2006)
Method of Testing Liquid-Line Filter Drier Filtration Capability
This laboratory test method evaluates the capability of liquid-line filters and filter driers only for removing and retaining solid particles of a standard test contaminant.
The test method may be applied to all hermetic refrigerant liquid-line filters and filter driers up to and including Model 417S (line size 23 mm maximum).
The technique employed in this standard is the one-pass test method. In this test, a clean-up filter is installed downstream of the test sample and is designed to retain and prevent recirculation of most of the contaminant particles that are not collected by the test sample in the first pass.
Filter driers have the added capability of removing and retaining certain dissolved contaminants. This standard does not provide measurement of this capability.
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ashrae]