The following articles provide information to do with the operation, maintenance and inspection of process facilities.

Safety Signs

The material in this post is extracted from Chapter 16 of the 2nd edition of the book Plant Design and Operations.

Guidance as to the types of signs and their meanings is provided below.


Prohibition signs mean "You must not" or "Do not do . . ." or "Stop". Signs of this type have a red circle, a white interior and a red bar, as illustrated in Figure 16.4.

Figure 16.4
Prohibition Sign

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