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Biological equipment for treating air and other gases — General requirements
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Test method for the evaluation of permeability and filtration efficiency distribution of bag filter medium
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
High efficiency filters and filter media for removing particles in air — Part 1: Classification, performance, testing and marking
50.00 Final text received or FDIS registered for formal approval
Cleaning of air and other gases — Vocabulary
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Fire containment — Elements of building construction — Part 1: Ventilation ducts
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Test method to measure the efficiency of air filtration media against spherical nanomaterials — Part 2: Size range from 3 nm to 30 nm
90.93 Standard confirmed
Household and similar electrical appliances - Safety - Part 2-88: Particular requirements for humidifiers intended for use with heating, ventilation, or air-conditioning systems
60.60 Standard published