TS ISO 7967-12

TS ISO 7967-12 is a vocabulary standard for terms and definitions related to exhaust emission control systems in reciprocating internal combustion engines. This part focuses on the technical language used to describe exhaust emission matter, the control systems and devices, and the parameters associated with those systems.

How the emission-control terminology is organised

In the general technical context of reciprocating engines, exhaust emission control covers the hardware and functional arrangements used to reduce or manage pollutants formed during combustion. A vocabulary standard does not prescribe a specific control technology; instead, it establishes a common terminology so engineers, testers, and technical writers can distinguish between the substances emitted, the equipment that acts on them, and the parameters used to describe system behaviour.

• Exhaust emission matter: the constituents in exhaust gas that are monitored or targeted for reduction.
• Exhaust emission control systems and devices: arrangements that convert, trap, dilute, or otherwise manage emissions.
• Parameters: technical quantities used to describe operating condition, adjustment, or performance.
• Vocabulary scope: this part is about definitions and classification, not a test method or performance-limit document.

By organising the terminology this way, the standard supports clearer communication across engine design, emissions work, maintenance, and documentation. It is especially useful wherever consistent naming of emission-related components and concepts matters.