This standard specifies the test methods for exhaust mufflers of internal combustion engines (hereinafter referred to as mufflers). This standard is applicable to the test of mufflers of medium and small power internal combustion engines, and intake mufflers can also be used as a reference.
GB/T 4759-1995 history
2009GB/T 4759-2009 Exhaust silencers for internal combustion engines.Measurement procedure
1995GB/T 4759-1995 Measurement procedure for exhaust silencers of internal combustion engines