![]() This is particularly important for peroxide-forming compounds and other chemicals that become unstable over time, and it is good laboratory practice for ALL chemicals. Original containers should be labeled with the date received and the date opened. No chemical shall be accepted without an adequate identifying label. The OSHA HazCom Standard 1910.1200 as it applies to laboratories requires that labels on incoming containers of hazardous chemicals must not be removed or defaced until the container is empty and rinsed. Laboratories are used by several people, and staff and students change frequently, so everyone who works in a laboratory is responsible for ensuring that chemicals and their associated hazards can be identified throughout their lifetime. Disposal of unknown chemicals is expensive and requires a screening procedure to identify potential hazards. Nothing is more difficult to handle than an unknown substance posing unidentified hazards. ![]() ![]() ![]() Unambiguous identification of chemicals in a laboratory is of utmost importance. ![]()
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