... accepted standardexecuted standardEnglish titleISO2710-1:2000,IDTidtISO1204:1990GB/T 725-2008Internal combustion engines - Nomenclature and code ... of units and its applicationISO 6798:1995,IDTGB/T 1859-2000Reciprocating internal combustion engines--Measurement of emitted ... noise--Engineering method and survey methodISO 1204-90GB/T 726-1994Reciprocating internal combustion engines-Designation of the ...