prBAS ISO 23820:2026

Determination of the filtration efficiency of urea filter modules

General information

Status:Project

Number of pages:21

Adoption method:Korice

Language:engleski

Edition:1.

Realization date:08.10.2025

Forseen date for next stage code:29.10.2025

Technical committee:BAS/TC 35, Road vehicles

ICS:

43.060.40, Fuel systems

Abstract

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.

Lifecycle

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Original document and degree of correspondence

ISO 23820:2023, identical

Work material

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