You must:
• Use SCBA and air-line respirators safely:
– Do not supply compressed oxygen to SCBAs or air-line respirators that previously used compressed air.
Note: | Compressed air leaves residues containing hydrocarbons such as oil or grease. Fire or explosion can occur if compressed oxygen makes contact with these residues. |
You must:
• Use breathing air couplings on air-line respirators that are not compatible with couplings for nonrespirable air or other gas systems, for example, utility air used for manufacturing purposes.
• Do not allow asphyxiating substances to enter breathing air lines; for example, do not flush nitrogen through worksite air lines also used for breathing air.
• Use equipment specifically designed for oxygen service or distribution if oxygen concentrations greater than 23.5% are used.
Note: | Respiratory equipment not designed for oxygen service or distribution can create fire or explosion hazards in oxygen concentrations higher than 23.5%. |
You must:
• Make sure cylinders used to supply breathing air for SCBAs or air-line respirators are tested and maintained as described in the federal Department of Transportation's (DOT) Shipping Container Specification Regulations, Title 49 C.F.R. Parts 173 and 178.
Note: | • Use only cylinders marked (with serial number, cylinder pressure, DOT exemption number, and test dates) according to these DOT regulations |
| • To find any Code of Federal Regulations (C.F.R.) visit: www.access.gpo.gov. |