410 IAC 5.1-1-12
410 IAC 5.1-1-12 "Passive monitor" defined
Cite as Ind. Admin. Code tit. 410, r. 5.1-1-12
Sec. 12. As used in this rule, "passive monitor" means those types of radon-222 detectors that do not require external power or batteries
to operate. Charcoal canisters and alpha track detectors are the principle [sic.] types of passive monitors.