Final answer:
a) NFPA 1670, 2004
The condition posing risk to life and health is defined as per NFPA 1670, 2004. NFPA also provides the NFPA 704 Hazard Identification System, which helps to identify and address various hazards.
Step-by-step explanation:
Any condition that poses an immediate or delayed threat to life, causes irreversible adverse health effects, or interferes with an individual’s ability to escape unaided from a hazardous environment is defined as per NFPA 1670, 2004. This standard, among others created by the National Fire Protection Agency (NFPA), such as the NFPA 704 Hazard Identification System, is crucial in ensuring the safety of individuals by providing information on the hazards associated with different substances and environments. The NFPA 704 system uses a colored diamond to summarize major hazards of a chemical substance, providing at-a-glance information to protect against health, fire, and reactivity risks as well as noting special hazards.