Live, on-demand power in section 32 (5) of the Act to promote and preserve the national environmental quality 2535 (1992) National Environmental Committee. Standardize the volume is generally as follows: 1 comment on this post"A typical sound level" means the level of noise that occurs in the environment."The maximum volume value" means the value of the maximum sound level at any one moment occurred during a measuring sound levels. With an ACE or DB dB (A)"24-hour average sound level value" means the value of the constant is the energy equivalent of actual volume, volume changes according to the time during 24 hours (24 hours Continuous Equivalent Sound Level A-weighted), which is known by the acronym by which a unit 24 hr Leq decibel dB or EA (A)"The standard sound level" means a sound level meter according to the standard IEC 651 or IEC 804 of the International Commission on electric technique (International Electrotechnical Commission, IEC) Article 2, defines the General sound level standards is as follows:(1) the level of risk a maximum of 115 DB at.(2) 24-hour average sound level does not exceed 70 DB a. 3 the measuring volume in General, do the following:(1) measuring the maximum volume, use the sound level measurement volume standard in areas where people live or live.(2) measuring 24-hour average sound level, use the standard measuring volume, volume 24 hours continuously at all times.(3) to set the microphone of the sound level standard exterior area, floor area of not less than. 1.20 metres in radius of 3.50 meters along the Plains around the microphone. Must not contain other walls that hinder sound reflection properties.(4) to set the volume level of the microphone measures inside the building, floor area of not less than. 1.20 metres in radius of 1.00 m along the Plains around the microphone. There must not be an obstacle to any other thing that has the ability to reflect sound obstructed. And away from the window, or an open channel out of the building by at least. 1.50 m. Article 4 the calculation of the volume must be in accordance with how the international organization on Standardization (International Organization for Standardization, ISO), which defines the pollution control Department will publish in the Government Gazette.
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