มอก. 1611-2541

Scope (English)

This standard specifies those quality aspects which are capable of definition but not normally found on a drawing specification. It covers the following : - single piece piston rings of grey, carbidic, malleable, spheroidal graphite cast iron or steel; - mulit-piece piston rings (oil control rings) consisting of cast iron parts and spring components; - single-piece and multi-piece rings of steel, i.e. oil control rings in the form of strip steel components or steel segments (rails) with spring expander components. This standard apply to all rings up to and including 200 mm diameter diameter covered by the above classification for both reciprocating internal combustion engines and compressors