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Industrial fans — Determination of fan sound power levels under standardized laboratory conditions — Part 2: Reverberant room method
30.60 Close of voting/ comment period
Industrial fans — Determination of fan sound power levels under standardized laboratory conditions — Part 3: Enveloping surface methods
30.60 Close of voting/ comment period
Fans — Determination of fan sound power levels under standardized laboratory conditions — Part 4: Sound intensity method
30.60 Close of voting/ comment period
Fans — Laboratory Methods of Testing Air Circulating Fans for Rating and Certification
30.60 Close of voting/ comment period
Fans — Tolerances, methods of conversion and technical data presentation
40.20 DIS ballot initiated: 12 weeks
Fans — System effects and system effect factors
50.00 Final text received or FDIS registered for formal approval
Fans — Air curtain units — Part 3: Test methods to determine energy effectiveness
30.99 CD approved for registration as DIS
Computational Performance Prediction of Fans Based on Multiple Variable Parameters
00.00 Proposal for new project received