Contents Chapter I	General provisions	 Chapter II	Noise measurement conditions	 Section I	Measuring Instruments	 Section II	Measuring quantity	 Section III	Method to read the measured value	 Section IV	Environmental conditions	 Chapter III	The noise measurement of production environment	 Section I	 Equipment operation state	 Section II	 Location of measuring point	 Section III	Noise measurement value record	 Chapter IV	Outdoor noise measurement in non-production places	 Section 1	Outdoor noise measurement in non-production places	 Section II	Outdoor noise measurement in non-production places	 Section III	The plant boundary noise measurement	 Section IV Noise measurement value record	 Appendix I:	Record sheet of the noise measurement of industrial enterprises	 Appendix II:	The measurement method of equivalent A-weighted sound level	 Appendix III	Explanation of wording in this specification	 Additional remarks:	
 
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