Chemical Hygiene Plan - Queensborough Community College ...

· Peroxidizable materials (aldehydes, ethers, and compounds containing benzylic
hydrogen atoms, e.g., cumene isopropyl benzene and most alkene, vinyl, and
vinylidene compounds)
· Polymerizers that react violently in polymerization or become hazardous after
polymerization
· Other materials known to deteriorate or become unstable or reactive over time
Expiration dates must be assigned to these chemicals. When provided, the
manufacturers' expiration date should be displayed.
Peroxidizable materials must be tested routinely for peroxides. (See the table
"Common Peroxide Forming Chemicals' in Appendix C for a more complete list
of these chemicals and testing instructions.)
• All laboratory personnel, upon notice of retirement, termination, transfer, or graduation,
must in conjunction with the laboratory supervisor and Chemical Hygiene Officer,
arrange for the removal or safe storage of all hazardous materials remaining in their
laboratory.
• Appropriate spill control, cleanup, and emergency equipment must be available wherever
chemicals are stored. See Chapter VIII for considerations in choosing these materials.
6.3 Chemical Storage Limits
The nature of laboratory work calls for a certain amount of chemicals to be on hand for easy
access. However, all laboratory employees must limit, as much as possible the amounts of
chemicals stored on bench tops, in hoods, under sinks or other exposed areas, especially when
these chemicals are flammable, combustible, reactive, toxic, or corrosive.
1. Legal limits on amounts of flammables, combustibles, reactives, and
unstable chemicals in laboratories.
Local fire regulations (such as those in New York City) determine the amount of
flammable materials or oxidizing, unstable, and reactive chemicals that may be stored in
laboratories based on the fire rating of the room and whether it has a sprinkler system.
The following table shows an example of local fire department limits in New York City.
These reflect the new revisions established in 2009.
NFPA 45, Table 10.1.1
as modified by FC 2706
Flammable
& Comb
Liquids
Class
Excluding quantities in storage
cabinets (any fire rating); Total
allowable amount stored outside
of an approved flammable
cabinet
Maximum
Qty/100
ft2 of lab
unit
Maximum
Qty per
lab unit
Including quantities in storage
cabinets AND a minimum 2-hr
laboratory fire rating; All
amounts stored inside
flammable cabinets
Maximum
Qty/100
ft2 of lab
unit
Maximum
Qty per
lab unit
D I 1 gallon 75 gals* 2 gals
D I, II & III 1 gallon 75 gals* 2 gals
150
gals**
150
gals**
B I 5 gallons 25 gals 10 gallons 30 gals
B I, II & III 10 gallons 25 gals 20 gallons 30 gals
* Increased to 100 gals if not an educational or instructional lab as per FC 2706.6
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