43.13 Liquid Nitrogen (LN2), Oxygen (LOX) and Cryogens Checklist.

43.13.1. Are all high-pressure lines secured with brackets, braces or other devices to prevent
whipping from a failed line? Reference 43.2.4

43.13.2. Are painting, welding, cutting and brazing, solvent use and any operation producing toxic
or noxious gases or vapors prohibited during LN2 or LOX production runs? Reference 43.2.5

43.13.3. Are cryogenic facilities sited by minimum separation distances or greater as prescribed by
UFC 3-600-01, Fire Protection Engineering Facilities and TO 00-25-172, Ground Servicing of
Aircraft and Static Grounding/Bonding? Reference 43.3.1

43.13.4. Do LN2 and LOX production facilities and storage locations have permanent signs posted
indicating ―OXYGEN—NO SMOKING—NO OPEN FLAMES‖ or an equivalent warning?

43.13.5. Are LOX-compatible joint sealers used where spills are likely to occur in LOX handling
and storage areas? Reference

43.13.6. Is the area around the LN2 and LOX plant itself made of concrete? Reference

43.13.7. Is guidance requested from and provided by BE on hazards, precautions, PPE and
ventilation required for working with solvents and chemicals? Reference 43.4.1

43.13.8. Is the proper PPE provided and used by workers handling solvents and chemicals?
Reference 43.5.1

43.13.9. Are personnel prohibited from using the same PPE for cryogenic operations as used for
chemical protection? Reference 43.5.1

43.13.10. Is PPE always worn when an uninsulated cryogenic surface could be touched? Reference

43.13.11. Do workers avoid using cryogenics in small unventilated rooms? Reference

43.13.12. Is access to firefighting equipment in LN2 and LOX facilities clear and unobstructed?
Reference 43.6.7

43.13.13. Are preventive measures established and used to ensure LOX does not come in contact
with organic materials or flammable substances? Reference 43.6.8

43.13.14. Are floors and drip pans in LOX plants and storage plants maintained in spotless
condition? Reference 43.8.1

43.13.15. Are procedures established to verify the correct product is transferred to the correct storage
tank or cart? Reference 43.9.1

43.13.16. Are two (2) fully knowledgeable workers within normal voice or eye contact when
generating or transferring cryogenic fluids? Reference 43.9.2

43.13.17. Are cryogenic storage and dispensing facilities sited IAW paragraph 43.3? Reference

Please note that this checklist is a hypothetical example and provides basic information only. It is not intended to take the place of, among other things, workplace, health and safety advice; medical advice, diagnosis, or treatment; or other applicable laws. You should also seek your own professional advice to determine if the use of such checklist is permissible in your workplace or jurisdiction.