Chapter - 1
MNL000440.doc
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09/19/2016
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be present in confined spaces. Self contained breathing apparatus is required
(cartridge or filter type gas masks cannot be used). See the information on
personal protective equipment in this section for details.
When entering a confined area or area which may contain high inert gas
concentrations, a
"Buddy System"
must be used. One person should remain
outside the suspect area, but within view of the other person. This method ensures
that the other person can respond in the event of an emergency.
1.4
Pressurized Fluids / Gases
Pressurized gas and water sprinkler lines can
injure personnel and damage equipment.
Never tighten or loosen a fitting when it is
under pressure.
The house nitrogen supply lines can contain pressures of 100+ psig (6.9+ barg).
The water sprinkler lines contain pressures of 30 psig (2.1 barg). Exercise care
when working around these lines. Ensure that pressure has been vented before
breaking any connection. Tag out and lock out the line before doing any work.
Follow Typical Minimal Lockout or Tagout System Procedures described by
Occupational Safety and Health Admin., Labor Para. 1910.147.