Guidelines for care & Use of Dry Solvent Stills [Example]

2. Summary of Regulated Chemicals Covered by this CHP
1. OSHA regulated air-contaminants list, as elaborated in section III.K.1 of this manual.
This essentially regulates any and all chemicals which require air-monitoring when
continually released over and above their threshold limit value (TLV) in your lab or
work area as a result of poor work habits or improper ventilation. The specific list of
chemicals, referred to as OSHA Z-list substances, is found in:
http://www.osha-slc.gov/OshStd_toc/OSHA_Std_toc_1910_SUBPART_Z.html
2. OSHA Particularly Hazardous Chemicals, described in section III.F.1 of this manual:
carcinogens
teratogens/mutagens
acutely toxic hazardous chemicals
Carcinogens and mutagens/teratogens will be listed in the web site of your chemical
inventory (http://www.wfu.edu/chem/cheminventory/index.html)
and in the departmental MSDS sheet inventory, which includes chemicals used in all
laboratories (a hardcopy of which will be in the Chemistry Department Stockroom,
room # 110). Acutely toxic hazardous chemicals are not defined clearly by OSHA and
will here be meant to apply generally to all chemicals in the Departmental inventory
with HMIS/NFPA toxicity ratings of 3 or 4 (See the HMIS/NFPA hazard rating
descriptions in the Training Section of this manual).
3. OSHA “Substance Specific Standard Chemicals”, most of which are carcinogens.
Again, if you have any of them in your lab, they will be identified in your laboratory
inventory as carcinogens.
http://www.osha-slc.gov/OshStd_toc/OSHA_Std_toc_1910_SUBPART_Z.html
4. Chemicals which require prior approval before use by students within each lab in Salem
Hall. The Lab Standard requires such a list to be generated by the chemistry
department. It is located in section III.E of this manual.
5. The list of OSHA P-listed extremely hazardous waste, which should be consulted to
determine whether your lab generates chemical waste which is heavily regulated and
should only be produced by you in limited quantities. Also consult your research
Professor for further determination of what constitutes extremely hazardous waste
generated in your lab (access this list at http://www.epa.gov/docs/epacfr40/chapt-
I.info/subch-I/40P0261.pdf, and go to Part 261.33)
6. EPA’s list of “Extremely Hazardous Chemicals” listed only in the Lab Manager’s
Departmental Chemical Hygiene Plan Manual. You will not ordinarily need this list
since it is primarily meant as a “Community Right-to-Know law” source of information.
This is a listing of what EPA regards as extremely hazardous and is reported only when
amounts over and above a certain “reportable amount” are spilled by the institution.
Since we have only very small amounts, this should not be a problem.
http://www.epa.gov/docs/epacfr40/chapt-I.info/subch-J/40P0302.pdf
(go to Table 302.4)
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