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]

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]

References

  1. ↑ "EUR-Lex - 31970L0157 - EN". Eur-lex.europa.eu. Retrieved 2012-05-21.
  2. 1 2 3 4 5
  3. ↑
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