Final answer:
A lab produces a supplier label and an SDS for a chemical when it is sold or imported for workplace use, providing immediate hazard information and detailed safety instructions respectively.
Step-by-step explanation:
In a laboratory, a supplier label and a Safety Data Sheet (SDS) are produced for a chemical product when it is sold or imported for use in the workplace. A supplier label provides immediate information about the product, including hazard identification and necessary precautions. On the other hand, an SDS is a detailed document that provides comprehensive information about the product, including its properties, health and environmental hazards, protective measures, and safety precautions.
An example of when a lab might produce these would be when it creates a new chemical reagent that will be supplied to other research institutions or companies. This new reagent would require a supplier label for immediate reference and an SDS that outlines detailed information such as handling procedures, equipment needed for personal protection, first aid measures, and proper disposal guidelines to prevent environmental contamination.