2017DIN EN ISO 11819-2:2017-10 Acoustics - Measurement of the influence of road surfaces on traffic noise - Part 2: The close-proximity method (ISO 11819-2:2017); German version EN ISO 11819-2:2017
2017DIN EN ISO 11819-2:2017 Acoustics - Measurement of the influence of road surfaces on traffic noise - Part 2: The close-proximity method (ISO 11819-2:2017)
1970DIN EN ISO 11819-2 E:2015-11 Measurement of the impact of acoustic pavements on traffic noise Part 2: Close range method (draft)