NF S31-600-2*NF EN ISO 11690-2:2020 Acoustics - Recommended practice for the design of low-noise workplaces containing machinery - Part 2 : noise control measures
2020NF S31-600-2*NF EN ISO 11690-2:2020 Acoustics - Recommended practice for the design of low-noise workplaces containing machinery - Part 2 : noise control measures