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ASHRAE STD 63.2

2017 Edition, May 31, 2017

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Method of Testing Liquid-Line Filter Drier Filtration Capability



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Description / Abstract:

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.

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 the majority 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.

PURPOSE

The purpose of this standard is to prescribe a laboratory test method for evaluating the filtration capability of filters and filter driers used in liquid lines of refrigeration systems.

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