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Chemical Lifecycle Management
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Defining "Unsafe"


DOE-HDBK-1139/1-2000
and the employees should be encouraged to question any determinations that do not appear to be
valid.
Acquisition Control
Experiments and processes should be planned appropriately so that necessary quantities can be
procured. With "Just-In-Time" contracting, shock sensitive chemicals can be obtained within a
short period. This could be used to meet the needs of chemical workers while keeping
inventories of shock sensitive chemicals to a minimum. Using "Just-In-Time" contracting
essentially causes the chemical supplier to become the storage facility for one's shock sensitive
chemicals.
Just-In-Time contracts usually consist of agreements with suppliers that provide for a firm
delivery time. This time, coupled with internal delivery time, allows the worker to plan ordering
lead-time in order to have the chemicals arrive just prior to needing them. These materials are
usually ordered with slight excess and any left over materials should be disposed of to reduce the
potential for aging inventories (leftover reagent) in storage.
Consider purchasing peroxide formers with inhibitors if possible.
Tracking of Shock Sensitive Chemicals
Once a chemical is determined to be shock sensitive or have the potential of becoming shock
sensitive over time, it should be tracked. Availability of this information within a data system
will support tracking and proper management of shock sensitive chemicals. Data elements
should include each container's contents, container owner, amount, location, date received, date
opened, and last date inspected and/or next inspection date. If this information is not available,
then the container cannot be found and inspected at the required time and properly managed.
Defining Storage Conditions
Different chemicals have different storage needs and these needs should be clearly defined. The
first reason for this is to prevent incorrect storage conditions that could result in hazardous
situations. Some conditions such as exposure to heat, light, air, and humidity can aid reactions
that cause chemicals to become shock sensitive. Other conditions such as refrigeration can cause
the inhibitor to become ineffective and allow peroxide formation.
A second reason to define storage conditions is to articulate policy concerning the storage of
shock sensitive and potentially shock sensitive chemicals.
Defining Inspection Period
Because all chemicals are not the same, inspection periods need to be adjusted for each chemical.
Storage conditions should also be included in determining the inspection frequency. An
important part of managing time-sensitive chemicals is to determine appropriate inspection
periods for each chemical in the program. Inspection periods for each chemical should be
D- 7


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