JIS B 9908-3:2019 Test method of air filter units for ventilation and electric air cleaners for ventilation -- Part 3: Determination of the gravimetric efficiency and the air flow resistance versus the mass of test dust captured
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