Appendix Files_ALL

L ABORATORY S AFETY P ROGRAM

Evaporation Rate

4.5

A measure of the length of time required for a given amount of a substance to evaporate compared with time required for an equal amount of ether or butyl acetate to evaporate. Lower Flammable (Explosive) Limit: The lowest concentration of a combustible or flammable gas or vapor in air that will produce a flash of fire. Mixtures below this concentration are too "lean" to burn. Upper Flammable (Explosive) Limit: The highest concentration of a combustible or flammable gas or vapor in air that will produce a flash of fire. Mixtures above this concentration are too "rich" to burn. Any chemical whose presence or use is a physical or health hazard. Some examples include chemicals that are toxic, corrosive, flammable, highly reactive or explosive, or emit ionizing radiation. Immediately dangerous to life and health. The maximum concentration of a chemical from which one could escape within 30 minutes without any escape impairing symptoms or irreversible health effects. ( Note : Carcinogenic effects are not considered in setting these values.) A facility where the “laboratory use of hazardous chemicals” occurs. It is a workplace where relatively small quantities of hazardous chemicals are used on a non-production basis. Handling or use of such chemicals in which all of the following conditions are met; chemical manipulations are carried out on a “laboratory scale”, multiple chemical procedures or chemicals are used, the procedures involved are not part of a production process, nor in any way simulate a production process. A device located in a laboratory, enclosure on five sides with a movable sash or fixed partial enclosed on the remaining side; constructed and maintained to draw air from the laboratory and to prevent or minimize the escape of air contaminants into the laboratory; and allows chemical manipulations to be conducted in the enclosure without insertion of any portion of the employee’s body other than hands and arms. The single dose of a substance which causes the death of 50% of an animal population when exposed to the substance by any route other than inhalation. LD50 is usually expressed as milligrams or grams or The lowest temperature at which a liquid will give off enough flammable vapor to ignite.

Flammable Limits (Explosive Limits)

4.6

Flash Point

4.7

Hazardous Chemical

4.8

IDLH (Immediately Dangerous to Life and Health)

4.9

Laboratory

4.10

Laboratory Use of Hazardous Chemicals

4.11

Laboratory Fume Hoods

4.12

LD50 (Lethal Dose 50)

4.13

HSSE Laboratory Safety Program – Revised on Oct. 28, 2022

Page 2 of 12

Cushman & Wakefield Confidential and Proprietary Information - Do Not Duplicate. No part of this document may be disclosed in any manner to a third party without prior written consent of Cushman & Wakefield.