21/30426008 DC

This standard 21/30426008 DC BS ISO 8178-2. Reciprocating internal combustion engines. Exhaust emission measurement is classified in these ICS categories:

• 13.040.50 Transport exhaust emissions
• 27.020 Internal combustion engines

This document, together with ISO 8178-1:2020 and ISO 8178-4:2020, specifies the measurement and evaluation methods for gaseous and particulate exhaust emissions from reciprocating internal combustion engines (RIC engines) in the field.

This document is applied when the emissions from RIC engines used in non-road machinery, industrial equipment, marine installations, generating sets, diesel rail traction or similar machinery applications need to be measured in the field. Clause 5 applies for the conduct of discrete-mode steady-state gaseous or particulate emission measurements at a single operating point or conduct a weighted cycle-based test in the field. Clause 6 applies where it is necessary to assess gaseous emissions performance of engines during typical in-service operation under field conditions using portable emission measurement systems (PEMS).