ISO 22241-4:2023
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The latest, up-to-date edition.
Diesel engines — NOx reduction agent AUS 32 — Part 4: Refilling interface
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English
16-10-2023
This document specifies the refilling interface for the NOx reduction agent AUS32 in conformance with ISO22241-1, which is needed to operate converters with a selective catalytic reduction (SCR) exhaust treatment system.
This document specifies the minimum functional and geometric requirements of an open refilling system, in order to ensure compatibility between the on-board refilling system and the off-board refilling system. Compatibility conditions for a sealed refilling system are provided in AnnexA.
This document applies to commercial vehicles and buses as defined in ISO3833 and having a gross vehicle mass of more than 3,5t, designed to use stationary off-board refilling systems. This document also applies to the nozzle of stationary off-board refilling systems.
NOTE Throughout this document, the term “NOx reduction agent AUS32” is abbreviated to “AUS32”.
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