AFMAN 24-204(I)/TM 38-250/NAVSUP PUB 505/MCO P4030.19H/ DLAI 4145.3 221 11 DECEMBER 2001 Name of Gas Maximum Permitted Filling Density in Percent (See A3.3.2.5) Cylinders Marked as Shown Below Must be Used Sulfur hexafluoride 120 DOT-3, DOT-3A1000, DOT- 3AA1000, DOT- 3AAX2400, DOT-3AL1000, DOT-3E1800, DOT-3T1800 Sulfuryl fluoride 106 DOT-3A480, DOT-3AA480, DOT-3E1800, DOT-4B480, DOT-4BA480, DOT-4BW480 Tetrafluoroethylene, stabilized 90 DOT-3A1200, DOT-3AA1200, DOT-3E1800 Trifluorochloroethylene 115 DOT-3A300, DOT-3AA300, DOT-3B300, DOT-3E1800, DOT-4A300, DOT- 4B300, DOT-4BA300, DOT-4BW300 Trimethylamine, anhydrous 57 DOT-3A150, DOT-3AA150, DOT-3B150, DOT-3E1800, DOT- 4B150, DOT-4BA225, DOT-4BW225 Vinyl chloride (see note 2) 84 DOT-3A150, DOT- 3AA150, DOT-3AL150, DOT-3E1800, DOT-4B150, without brazed seams; DOT-4BA225, without brazed seams; DOT-4BW225, DOT-25 Vinyl fluoride, stabilized 62 DOT-3A1800, DOT-3AA1800, DOT-3AL1800, DOT-3E1800 Vinyl methyl ether (see note 2) 68 DOT-3A150, DOT-3AA150, DOT-3B150, DOT 3E1800, DOT- 4B150, without brazed seams; DOT-4BA225, without brazed seams; DOT-4BW225, DOT-25 NOTES: 1.  Cylinders purchased after 1 October 1944 for the transportation of chlorine must contain no aperture other than that  provided  in  the  neck  of  the  cylinder  for  attachment  of  a  valve  equipped  with  an  approved  safety  device. Cylinders purchased after November 1, 1935 and charged with chlorine must not contain over 150 pounds of gas. 2.  All parts of valve and safety devices in contact with contents of cylinders must be of a metal or other material, suitably treated if necessary, which will not cause formation of any acetylides. 3.  DOT-3HT cylinders are authorized for use in aircraft only for a maximum service life of 24 years.  They must be equipped with a frangible disc safety relief device, without fusible metal backing, and with a rated bursting pressure