Standardization of any matters within the scope of ISO/TC 146 dealing with indoor air. This comprises gases, particles, odours, micro-organisms, and emissions from furnishing. The indoor environment is defined as follows: Dwellings, having living rooms, bedrooms, DIY(do-it-yourself) rooms, recreation rooms and cellars, kitchens, and bathrooms; workrooms or work places in buildings which are not subject to health and safety inspections in regard to air pollutants (for example offices, sales premises); public buildings (for example hospitals, schools, kindergardens, sports halls, libraries, restaurants and bars, theatres, cinemas and other function rooms) and also cabins of vehicles.

The basic responsibilities include terminology, general planning of measurements. Planning of substance specific measurements, validated measurements for gases, particles, odours and micro-organisms, test chambers (emissions from furnishing), ventilation rate, quality assurance, maintenance of existing standards.