Material poisonous by inhalation
Material poisonous by inhalation or Material toxic by inhalation means:
(1) A gas meeting the defining criteria in § 173.115(c) of this subchapter and assigned to Hazard Zone A, B, C, or D in accordance with § 173.116(a) of this subchapter;
(2) A liquid (other than as a mist) meeting the defining criteria in § 173.132(a)(1)(iii) of this subchapter and assigned to Hazard Zone A or B in accordance with § 173.133(a) of this subchapter; or
(3) Any material identified as an inhalation hazard by a special provision in column 7 of the § 172.101 table.