17.140.10 标准查询与下载

CSN IEC 1012:1995 超声波出现时可听声音测量滤波器

Zpracovatel: Idea NOVA, I?O 10137734, Ing. Josef Novák Pracovník ?eského normaliza?ního institutu: Ing. Ji?í Splíchal

Filters for the measurement of audible sound in the presence of ultrasound

CSN ISO 532:1994 声学．音量级别计算方法

Spracovater: Technick? skú?obn? ústav Pie??any, ?tátna skú?obňa ?. 243, Pie??any, Krajinská 9, I?O 00057 380, Ing. Ladislav Mihal?ík, Ing. Ivan Pobjeck?, CSc. Technická normaliza?ná komisia: TNK 8 Akustika Pracovník ?eského normaliza?ního institutu: Ing. Jarmila Millerová

Acoustics - Method for calculating loudness level

ANSI S12.9 Part 3-1993 描述和测量环境声音的量值及程序.第3部分:观测员在场情况下进行的短期测量

This standard is the third part of a series related to quantities and procedures for description and measurement of environmental sound. This present standard, Part 3, deals with basic measuremtns of sound with an observer present. Typically, the duratio

Quantities and procedures for description and measurement of environmental sound - Part 3: Short-term measurements with an observer present

ANSI S12.9 Part 2-1992 描述和测量环境声音的量值及程序.第2部分.长期和宽域的声音测量

This standard describes recommended procedures for measurement of long-term, time-avarage environmetal sound outdoors at one or more locations in a community for environmental assessment or planning for compatible land uses and for other purposes such as

Quantities and procedures for description and measurement of environmental sound - Part 2: Measurement of long-term, wide-area sound

ANSI S1.13-1971(R1976) 声压级的测量方法

Methods for the Measurement of Sound Pressure Levels