This standard applies to ventilation air filter units (hereinafter referred to as filter units) that use filter media to remove dust among the air filters used in buildings, factories, offices, etc. to remove dust floating in the air. ) and ventilation electrostatic precipitators (hereinafter referred to as electrostatic precipitators).
JIS B 9908:2001 history
2019JIS B 9908-1:2019 Test method of air filter units for ventilation and electric air cleaners for ventilation -- Part 1: Technical specifications, requirements and classification system based upon particulate matter efficiency
2011JIS B 9908:2011 Test method of air filter units for ventilation and electric air cleaners for ventilation
2001JIS B 9908:2001 Test method of air filter units for ventilation and electric air cleaners for ventilation