Hi, Raj. That would be the "smelly" gas group. ;-)
Seriously, that is a good question because the classification it falls into
will depend largely upon what else it is stored with - is it wet? dry? any
AS2381.1 Appendix I gives a good run-down if you would like to nut it out
yourself from the MSDS. As a LEI, I would be unhappy with less than IIB, but
IIC is possibly quite okay.
The form(s) of your ammonia and the compounds it reacts with, might
make different parts of your process and facility subject to several
standards and safety considerations.
Why not require safe compliance with both IIB and IIC? Contract
documents often list multiple requirements, and state that in the
event of contradiction, choose the most expensive compliance as a
default in your contract/bidrfp documents.
That way, when the vendor complains about costs, and can demonstate a
less expensive way to safely comply, you have options. If you put
several vendors in a bid situation, they talk about the issues with
their competitors products, including but not limited to various
standards of service and compliance.
Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here.
All logos and trade names are the property of their respective owners.