ISIRI 4243

ISIRI 4243 is a standard published by the Institute of Standards and Industrial Research of Iran (ISIRI) based on Directive 70/157/EEC.^[1] It defines "permissible sound level and the exhaust system of motor vehicles".^[2]

The first edition was published in 2002 and was later amended and published in 2010 based on Directive 2007/34/EC.^[2]

Related sources

Other related sources are as follows:

ISIRI 6924 The type approval of motor vehicles and their trailers ^[3]
ISO/DIS 10534:2000- Acoustics - Determination of sound absorption coefficient and impedance by a tube method^[2]
ECE 51 - Uniform provisions concerning the approval of motor vehicles having at least four wheels with regard to their Noise Emissions^[2]
ECE 59 - Replacement silencing systems.^[2]

Institute of Standards and Industrial Research of Iran

List of ISIRI standards

Automotive	4243 6482 6484 6494 6505 6603 6651 6653 6672 6701 6702 6703 6704 6788 6862 6894 6924 7076 7077 7078 7080 7083 7558 8314 8315 8316 8317 8318 8319 13133 13134 13135 13136 13137 13138 13139 13140 13141 13142 13143 13144 13145 13146 13150 13151 13152 13262 13263

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