ANSI AARST MALB-2014 rev.1-21

ANSI/AARST MALB-2014 rev.1-21 specifies procedures and minimum requirements when measuring radon concentrations in shared structures, or portions of shared structures, used for residential, non-residential or mixed use purposes to determine if radon mitigation is necessary to protect current and future occupants. 1-21 revisions to this publication include harmonization of most provisions to read the same across both ANSI/AARST MAMF and ANSI/AARST MALB.