This standard addresses determining the acoustic performance of industrial blowers and additionally:
KS B ISO 13347-1:2005 history
2020KS B ISO 13347-1:2020 Industrial fans — Determination of fan sound power levels under standardized laboratory conditions — Part 1: General overview
2005KS B ISO 13347-1:2005 Industrial fans-Determination of fan sound power levels under standardized laboratory conditions-Part 1:General overview