JIS A 1429:2007

Introduction1 Scope2 Normative references3 Terms and definitions4 Instrumentation5 Test method6 Measurement procedure 6.1 General 6.2 Installation method of measurement points distributed uniformly in the room 6.3 Measurement method of sound pressure level 6.4 Calculation method of indoor average value of sound pressure level 6.5 Correction for background noise 6.6 Standardization or normalization of octave-band results 6.7 Calculation of A- and C-weighted values 6.8 Sound sources present in the room (additional measurements)7 Measurement of reverberation time or equivalent sound absorption area8 Correction for background noise9 Precision10 Test reportAnnex A (normative) - A-weighting and C-weighting correction valueAnnex B (normative) - Operating conditions and operating cycles of equipment to be tested for measuring the maximum sound pressure level and the equivalent continuous sound pressure levelAnnex 1 (informative) - Measurement method of the sound pressure level of measurement points installed at the corner positions and the reverberant field positionsAnnex 2 (normative) - Measurement method of the reverberation time and measurement method of the equivalent sound absorption area level using the reference sound sourceAnnex 3 (informative) - Comparison table between JIS and corresponding International Standard