Final answer:
The statement is FALSE, as Safety Data Sheets (SDSs) should always be consulted before working with any new chemical, not just after emergencies.
Step-by-step explanation:
The statement that Safety Data Sheets (SDSs) should be consulted only after an emergency, such as a spill, fire, or explosion, is FALSE. SDSs contain critical information on how to handle chemicals safely, the hazards they may present, and what first-aid measures might be necessary. These sheets should be reviewed before beginning a lab or working with any new chemicals so that you are informed about the safe handling procedures and the potential risks involved. In the case of an emergency, such as a chemical spill, one should indeed refer to the SDS for the specific chemical involved for guidance on the appropriate response.
Furthermore, one should always dispose of chemicals safely according to guidance – many substances should not be poured down the sink and require special disposal methods to prevent environmental damage. In case of uncertainty or potential extreme physical danger, such as a serious fire or chemical hazard, prior knowledge from the SDS can be essential for a safe and appropriate response.