Nev. Admin. Code § 445B.121 - "Opacity" defined

"Opacity" means the property of a substance tending to obscure vision and measured in terms of percent obscuration. The relationship between opacity and Ringelmann number is approximately equal to the following in shades of white to gray.

Opacity Ringelmann
(Percent) Number
20................................... 1
40................................. 2
60................................. 3
80................................. 4
100................................. 5

Notes

Nev. Admin. Code § 445B.121
Environmental Comm'n, Air Quality Reg. § 1.44, eff. 11-7-75; renumbered as § 1.120, 12-4-76-Substituted in revision for NAC 445.557

NRS 445B.210

State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.


No prior version found.