Figure: 30 TAC §336.359(b)(6)
DAC = ALI(in
µ
Ci)/(2000 hours per working year x 60 minutes/hour x
2 x 10
4
ml per minute) = (ALI/2.4 x 10
9
)
µ
Ci/ml,
where 2 x 10
4
ml is the volume of air breathed per minute at work by "reference man" under working conditions of light work.