The Purdue Chemical Hygiene Plan is a model, a template,
a partial, a most-but-maybe-not-all START on what your lab should have in place for its CHP. "The employer" (Purdue)
could not possibly install a single CHP that covered everything for every lab. If it
does not cover everything you do in your lab, then you have to ADD TO IT. More on
that later.
Your department safety committee can help with this. Purdue's REM department
(Radiological & Environmental Management) can help too.