1.  Laboratory hoods and special local exhaust ventilation systems (SLEV) shall be labeled to indicate intended use (e.g., “Perchloric Acid Hood”).

NFPA 45, Chapter 6-12.1

2.  A label must be affixed to each hood containing the following information from the last inspection:

a.  certification date due

b.  average face velocity

c.  inspector’s initials

NFPA 45, Chapter 6-12.2 {NOTE: This code sites slightly different information for the label. Stanford determined it was appropriate to create a label with the above information.}