
Reciprocating internal combustion engines—Measurement of sound power levels using sound pressure—Part 4:Survey method using a reference sound source
NORMA vydaná dňa 12.5.2017
Designation standards: GB/T 1859.4-2017
Note: NEPLATNÁ
Publication date standards: 12.5.2017
Country: Chinese technical standard
Kategória: Technické normy GB