Standard Operating Procedure for Chemical Handling and Storage
EHS-00005 R12
Printed copies are considered uncontrolled. Verify revision prior to use.
DCN1216
CNSE Confidential
Page 23 of 43
15.3.3
Greater Than Five Gallon Drums
15.3.3.1
Larger drums shall be transported by means of a hand truck of tripod style
and designed for the load.
15.3.3.2
Drums shall be transported in the upright position with their bungs/tops
secured. This section, applies to all drums to include full, in-service, and
empty drums.
15.3.3.3
Once emptied, drums shall have an "EMPTY" label affixed, and be treated
as still having the chemical hazard associated with the original chemical
until they have been triple rinsed. See the Hazardous Waste Specification,
EHS 0009 for further details.
15.3.3.4
Full drums of 30 gallon or greater capacity shall not be stacked.
15.3.3.5
Empty drums may be stacked on their sides with both ends secured. They
should only be stored in designated storage areas, and if outside, not
subject to storm water runoff. The stacking of empty drums is limited to
three rows high.
15.3.4
Transferring Chemicals by Hand
CNSE EHS
’s preferred technique for chemical transfers is based on
minimizing employee exposures to chemicals: in order of effectiveness
1) designed engineering controls, such as bulk-fed delivery systems
2) local engineering controls, such as an articulating arm with snorkel
exhaust,
3) lastly, having the employee pour chemicals by hand while wearing
PPE.
CNSE recognizes that in an R&D environment, it may not always be
feasible to bulk feed smaller amounts of chemicals, therefore, we allow the
transfer of chemicals by hand with the following requirements:
All hand pouring of an HPM requires local exhaust, such as a fume
hood or an articulating arm with snorkel exhaust to minimize
employee exposures, odor issues, and HEPA filter risks.
No more than 1.3 gallons (5L) of liquids with a hazard ranking of 4
may be hand poured at a single time and must be dispensed to and
from approved containers.
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