21.240 Rotary-reciprocating mechanisms and their parts *Including pistons, piston-rings, crankshafts, etc. for general engineering

Mechanical vibration — Evaluation of machine vibration by measurements on non-rotating parts — Part 6: Reciprocating machines with power ratings above 100 kW

Mechanical vibration — Evaluation of machine vibration by measurements on non-rotating parts — Part 6: Reciprocating machines with power ratings above 100 kW