ISO-23820 › Determination of the filtration efficiency of urea filter modules
ISO-23820
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1ST EDITION
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CURRENT
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This document specifies requirements relating to the testing method for AUS 32/diesel exhaust fluid (DEF) filters for the removal of suspended matter. This applies to urea filters dedicated to passenger vehicles as well as to commercial vehicles. This method applies to filters with flow rates from 3 l/h to 30 l/h depending on the application (by default 5 l/h for passenger vehicles and 25 l/h for commercial vehicles). This method can be used for other flow rates, provided the validation requirement can be met.
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Document Number
ISO 23820:2023
Revision Level
1ST EDITION
Status
Current
Publication Date
May 1, 2023
Committee Number
ISO/TC 22/SC 34