Listers=85

 

In reviewing published accidental explosion descrip tions involving either aqua regia or sulphuric acid + hydrogen peroxide, there appear to be several common (not terribly surprising) themes. These a re:

 

[1] pressure build-up inside tightly capped glass c ontainers from ongoing decomposition reactions, and;

[2] improper addition of aliphatic organics into th ese containers resulting in overpressure, explosion and sometimes fire.

 

My question of list participants and colleagues is their perspective/experience on using vented caps to prevent build-up on wa ste containers in SAAs. Specifically,

 

[A}  In your experience, is the use of ven ted caps a permitted practice under RCRA or your state EPA agency?

 

[B}  Does EPA or your state regulatory agenc y have either regulations or interpretations that define or interpret =93co ntainer closure=94 as requiring it be tightly in place on the container as opposed to loosely in place to prevent pressure build-up?

 

BTW, I am in California but am interested in your response no matter where you are located.

TIA and make it a great day!!

David