Assignment
Go to the OSHA Permissible Exposure Limit (PEL) table (or the Table Z-1 Limits for Air Contaminants) at
https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9992.
1. What is the PEL (in ppm) of the following chemicals?
a. Isopropyl ether
b. Hydrazine
c. Diethylamine
d. Furfural
2. Which of the above-mentioned 4 chemicals have "skin notation"?
3. What does the "skin notation" mean?
4. What is the PEL-C (in ppm) of the following chemicals?
a. Butylamine
b. Methyl bromide
Name one chemical from Table Z-1 that has PEL-C as its OEL and a skin notation.