Building environment design. Indoor air quality. Methods of expressing the quality of indoor air for human occupancy Ingestion-build-71203 manufacturers and regulatory authorities in

manufacturers and regulatory authorities in the following ways:

In order to determine an appropriate estimated service life (ESL)

marking and sampling

unless used in conjunction with a non-metallic material

Building environment design. Indoor air quality. Methods of expressing the quality of indoor air for human occupancy Ingestion-build-71203 manufacturers and regulatory authorities in1 Scope This International Standard is intended to specify methods to express the quality of indoor air suitable for human occupancy, to allow several acceptable target levels of IAQ, depending on local requirements, constraints and expectations. This International Standard applies to the design of new buildings and their systems and the retrofit of existing buildings and systems, indoor environments where the major concern is that of human occupants,