The following definition is added to section 6002.1 of the California Fire Code as defined in Chapter 2 of the California Fire Code and local amendments:
MODERATELY TOXIC GAS. A moderately toxic gas is a chemical or substance that has a median lethal concentration (LC50) in air more than 2000 parts per million but not more than 5000 parts per million by volume of gas or vapor, when administered by continuous inhalation for an hour, or less if death occurs within one hour, to albino rats weighing between 200 and 300 grams each.
(Ord. 5563 § 1 (part), 2022)