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| Название (рус.): | Акустика. Определение уровней звуковой мощности источников шума. Технические методы В условиях свободного звукового поля над отражающей поверхностью |
| Название (англ.): | Acoustics; Determination of sound power levels of noise sources; Engineering methods for free-field conditions over a reflecting plane |
| Описание (англ.): | Specifies procedures for measuring the sound pressure levels on a measurement surface enveloping the source and for calculating the required quantity. Gives requirements for the test environment and instrumentation as well as the techniques for obtaining the surface sound pressure level from which the A-weighted sound power level of the source and octave or one-third octave band sound power levels are calculated. |
| Заменён стандартами: | ISO 3744(1994.05) |
| Дата введения: | 01.05.81 |
| Дата отмены: | 01.05.94 |
| Код КГС: | Т34 |
| Код ОКСТУ: | 0080 |
| Код ОКП: | 0080 |
| Нормативные ссылки: | BS 4196 PART 4-1981, EQV*DIN 45635-1-1984, NEQ*DS/ISO 3744-1982, EQV*NF S31-025-1977, EQV*SFS 4844 ISO 3744-1982, EQV*UNE 74-034-88(1988/AENOR), EQV*NEN-ISO 3744(1989/NNI), EQV*NS-ISO 3744(1989/NSF), EQV |
| Ключевые слова: | ACOUSTIC MEASUREMENT ACOUSTIC MEASUREMENTS ACOUSTICS DEFINITIONS NOISE (ENVIRONMENTAL) NOISE (SOUND) REVERBERATION ROOMS RULES OF CALCULATION SOUND INTENSITY SOUND LEVELS SOUND POWER SOUND PRESSURE SOUND SOURCES TEST EQUIPMENT TESTING CONDITIONS REVERBERATION |
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