Table I-3. Class of Flammable and Combustible Liquids Flash point Boiling point Examples Class IA < 73ºF < 100ºF Acetaldehyde, Ethyl ether, Gasoline, Methyl formate, Pentane Flammable liquids (Class I liquids) Class IB < 73ºF ≥ 100ºF Acetone, Benzene, Carbon disulfide, Cyclohexane, Ethanol, Methyl alcohol, Toluene Class IC ≥ 73ºF but < 100ºF Not Applicable Amylacetate, Butyl alcohol, Hydrazine, Styrene, Xylene Class II ≥ 100ºF but < Not Applicable Acetic acid, Formaldehyde, Glacial acetic acid, Hydrazine, Naphtha, Stoddard solvent Combustible liquids (Class II & III liquids) Class IIIA ≥ 140ºF but < 200ºF Not Applicable Cyclohexanol, Formic acid, Naphthalene, Nitrobenzene, Octyl alcohol Class IIIB ≥ 200ºF Not Applicable Formalin, Glycerine, Picric acid, Propylene glycol General Rule of Hazard Classes Some hazard classes are assigned numerical designations based upon their hazard potential. For example, oxidizers and unstable (reactive) materials are classified as Class 1, 2, 3 or 4 materials; water –reactive solids and liquids are classified as Class 1, 2 or 3 materials; and organic peroxides are classified as Class I, II, III IV or V materials. The following chart explains the severity of each class: Arabic Numeral Roman Numeral 4 HIGHEST HAZARD I 3 II 2 III 1 IV 0 LOWEST HAZARD V
d.) DOT II-9. DOT placard. Label Examples 1 : Explosives Ammonium nitrate; Hydrated picric acid which becomes explosive upon drying 2 :Gases Division 2.1 Flammable gases Hydrogen; Methane Division 2.2 Non- flammable, compressed gases Carbon Dioxide; Oxygen Division 2.3 Gases toxic by inhalation Diborane; Fluorine; Nitrogen dioxide Class 3 : Flammable liquids Methanol; Ethanol; Esters; Ethers; Ketones 4: Flammable solids Division 4.1 Flammable solids Naphthalene; Finely divided metal (e.g., aluminum, cadmium, chromium, titanium, zinc) Division 4.2 Spontaneously combustible materials Acetic acid; Cumene; Phenol; Propionic acid
Generally, operation instructions are clearly painted on the side of the fire extinguisher. They clearly describe how to use the extinguisher in case of an emergency. An example of these instructions is shown below. Operation Instructions for a Fire Extinguisher Portable fire extinguishers must be kept in good working at all times. The extinguishers are required to be inspected monthly. The building owner is responsible to designate a person to perform a monthly inspection, which may or may not be the C-14 Certificate of Fitness holders. This inspection is a "quick check" that a fire extinguisher is available and will operate. It is intended to give reasonable assurance that the fire extinguisher is fully charged and operable. This is done by verifying that it is in its designated place, that it has not been actuated or tampered with, and that there is no obvious or physical damage or condition to prevent its operation. The information of the monthly inspection record must include the date the inspection was performed, the person performing the inspection, and those portable fire extinguishers found to require corrective action. Such recordkeeping must be either attached to the extinguisher or on an inspection checklist maintained on file. Labels or markings indicating fire extinguisher use or classification or both shall be placed on the front of the fire extinguisher. In addition, the required annual servicing tag shall include (1) the name and Certificate of Fitness number of the person who serviced the extinguisher; (2) The month and year the extinguisher was serviced; (3) The name, street address and telephone number of the extinguisher servicing company, if any, servicing the extinguisher.
Appendix F Maximum Allowance Quantities of Chemicals Pre-existing laboratory Lab Type : Lab Size: Sq. Ft. Chemical Maximum Allowance Current Inventory Chemical Maximum Allowance Current Inventory Flammable Liquids Gals Gals Unstable Reactive Material Lbs Lbs Flammable Solids Lbs Lbs Flammable SCF SCF Oxidizing Materials Lbs Lbs New fire code Lab Class : Fire Rating: HR Lab Size: Sq. Ft. Chemical Maximum Allowance Current Inventory Chemical Maximum Allowance Current Inventory Class I Liquids (Excluding Cabinets) Gals Gals Corrosive Material Gals Gals Class I, II, IIIA Liquids (Excluding Cabinets) Gals Gals Flammable Solids Lbs Lbs Class I Liquids (Including Cabinets) Gals Gals Oxidizers/Org Peroxides Lbs Lbs Class I, II, IIIA Liquids (Including Cabinets) Gals Gals Unstable Reactive Material Lbs Lbs Water-Reactive Material Lbs Lbs Flammable Gases SCF SCF Pyrophoric Material Lbs Lbs Oxidizing Gases SCF SCF Highly Toxic Material Lbs Lbs Liquefied Flammable SCF SCF Toxic Material Lbs Lbs Gases with Health Hazard rating 3 or 4 SCF SCF Storage Room Maximum Allowance (Total) Current Inventory Maximum Allowance (Sq. Ft.) Current Inventory All Chemicals 300 Gal Gal All Chemicals 5 Gal Gal Flammable Gas 2,500 SCF SCF