Số hiệu tiêu chuẩn
FprEN ISO 3744
Tên tiêu chuẩn
Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994)
Ngày phát hành
2009-03-00
Tiêu chuẩn tương đương
DIN EN ISO 3744/A1 (2009-05), IDT * 09/30201631 DC (2009-03-20), IDT * ISO 3744 (1994-05), IDT * OENORM EN ISO 3744/A1 (2009-04-15), IDT
Từ khóa
Absorption * Acoustic measurement * Acoustic testing * Acoustics * Calibration * Clay * Determination * Ear protectors * English language * Enveloping surface methods * Environment * External noise * Fixings * Installations * Mathematical calculations * Measurement * Measurement duration * Measuring instruments * Measuring surfaces * Methods * Methods of calculation * Microphones * Noise * Noise (environmental) * Noise measurements * Noise sources * Operation * Precision * Reflective * Rooms * Sound absorption * Sound fields * Sound intensity * Sound level * Sound levels * Sound power * Sound pressure * Sound sources * Specification (approval) * Standard deviation * Test equipment * Testing * Testing conditions * Procedures * Processes * Extraneous noise
FprEN ISO 3744
.png)
.jpg){kind=logo}
.jpg){kind=logo}
-_-logo.png){kind=logo}
