Hi Martha and Sammye,

NFPA 55-2010 does include a provision about storing cylinders upright.  I’ve pasted it below for your convenience.

7.2.1.2 Upright Storage Flammable Gas in Solution and Liquefied Flammable Gas. Cylinders, containers, and tanks containing liquefied flammable gases and flammable gases in solution shall be positioned in the upright position.

7.2.1.2.1 Containers and Cylinders of 1.3 Gal (5 L) or Less. Containers with a capacity of 1.3 gal (5 L) or less shall be permitted to be stored in a horizontal position.

7.2.1.2.2 Containers, Cylinders, and Tanks Designed for Horizontal Use. Containers, cylinders, and tanks designed for use in a horizontal position shall be permitted to be stored in a horizontal position.

7.2.1.2.3 Palletized Containers, Cylinders, and Tanks. Containers, cylinders, and tanks, with the exception of those containing flammable liquefied compressed gases, that are palletized for transportation purposes shall be permitted to be stored in a horizontal position.

Please let me know if you have any questions about the coverage.

Best Regards,

Denise

Denise,

     Can you provide assistance on this inquiry related to NFPA 55?

  Thanks, Martha

On this line, are there any specific regs about lecture bottles being stored upright?  I've got a researcher that stores trace VOC gas in nitrogen lectures bottles horizontal in a cabinet.  Seems to me like all the concerns being vetted would apply, just on a smaller scale.   Any help on this out there?

Sammye