- ตัวอย่าง 1
Carry out noise measurement to determine sound insulation requirements for external peripheral walls of a building.
For buildings to be used mainly during the daytime, the measurement time period is 8:00 to 18:00. For buildings to be used both day and night, the measurement time period is 24 hours.
At the intended position of the external walls whose sound insulation design is being determined, measure constant noise, fluctuating noise, intermittent noise, impulse noise etc., using methods suitable to the sound environment of the site. Then determine the representative values.
Display measurement values using octave bands.
|มาตรฐานทางเทคนิค / กฏหมาย / ระเบียบ|
●ISO 1996-1:2003 Acoustics -- Description, measurement and assessment of environmental noise -- Part 1: Basic quantities and assessment procedures
●ISO 1996-2:2007 Acoustics -- Description, measurement and assessment of environmental noise -- Part 2: Determination of environmental noise levels
|NA-28 / NL-42 + NX-42EX + NX-42RT||Sound Level Meter, Class 1 (and 1/3 octave band real-time analyzer) / Sound Level Meter, Class 2 ＋ Extended function program ＋ Octave, 1/3 octave real-time analysis program|
|DA-21||4-channel Data Recorder|