Pressure vessels - USA warnings and labeleling

["Peter Ring, PRC" <prc -at- ISA -dot- DKNET -dot- DK>]

A small Danish company has asked me for help on how to make warning
labels on pressure vessels to be exported to USA as a part of a
larger equipment. Are there for instance any special warning icons
within this area?

Also: are there any special US laws, standards, or norms to be
regarded? Any special/typical warnings to be included in the manual?

Please answer me directly on prc -at- isa -dot- dknet -dot- dk -dot- 

Greetings from Denmark

Peter Ring
PRC (Peter Ring Consultants)
- specialists in user friendly manuals and audits on manuals.
prc -at- isa -dot- dknet -dot- dk
http://isa.dknet.dk/~prc/
- the "User Friendly Manuals" website with links, bibliography, list
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