Section 200.55  Conversion of Anhydrous Ammonia Storage Tanks to  LPG Storage

Except for containers used in cargo tank vehicle service, ASME containers of 3,000 gallons water capacity or less used to store anhydrous ammonia shall not be converted to LP-Gas fuel service.  For other size containers, when a container of approved construction and design has been used to contain anhydrous ammonia or any other product, the container shall be thoroughly purged of the other product before it is placed into service for LP-Gas and a tag attesting to the thorough purging of the container shall be placed near the fill valve of the container before LP-Gas is placed into the container.

(Source:  Added at 32 Ill. Reg. 16850, effective October 1, 2008)