§173.116. Class 2—Assignment of hazard zone. — Inbound Citations

(3) More than one L (1.06 quarts) per package of a material extremely toxic by inhalation (i.e., “material poisonous by inhalation,” as defined in § 171.8 of this chapter, that meets the criteria for “hazard zone A,” as specified in § 173.116(a) or § 173.133(a) of this chapter);

(1) A maximum capacity greater than 450 L (119 gallons) as a receptacle for a liquid;

(2) In the absence of adequate data on human toxicity, is presumed to be toxic to humans because when tested on laboratory animals it has an LC50 value of not more than 5000 mL/m 3 (see § 173.116(a) of this subpart for assignment of Hazard Zones A, B, C or D). LC50 values for mixtures may be determined using the formula in § 173.133(b)(1)(i) or CGA P-20 (IBR, see § 171.7 of this subchapter).

(c) More than one liter (1.08 quarts) per package of a “material poisonous by inhalation,” as defined in § 171.8 of this title, that meets the criteria for “hazard zone A,” as specified in § 173.116(a) or § 173.133(a) of this title;