SB 742-1
(d) Secondary Steel Container (SSC): Drawing
g. Requisitioning Procedures.
Overpacks may be Number, DA 100/2, Loading And Bracing In SSC Of M23
requisitioned through the addressee in para 1-5d(7). Questions Mines In Drums Unitized 1 or 2 Drums Per Pallet.
pertaining to supply status of these containers will be referred
to the National Inventory Control Point (NICP) (addressee in
NOTE
para 1-5d(7)).
Container-specific LOIs and drawings
h. Overpack Inspection and Storage Requirements.
may be obtained by contacting
addressee in para 1-5d(7).
(1) These requirements are applicable to containers
authorized for use as overpacks for leaking chemical munitions
(7) Overpack containers (except SSCs) that are either
and leaking overpacks in depot storage.
Requirements
(1) maintained in the wholesale account, under control of the
presented herein do not supersede requirements of the
NICP or (2) issued to local retail accounts but not designated
Resource Conservation and Recovery Act (RCRA) or state
as contingency stocks (as defined in paragraph 7-7e(6)(c), will
environmental laws. Installations must ensure compliance
undergo visual inspection of the external surface of the
with all current Environmental Protection Agency (EPA)
container so that 20 percent of the containers are inspected
regulations pertaining to these munitions and incorporate
annually and 100 percent of the stockpile is inspected each 5
such information in local policy or SOPs, where appropriate.
years. It is neither necessary nor desirable to access the
interior of the container to perform annual inspections, unless
(2) If procedures and requirements presented here are
serviceability is in question, based upon an external
in conflict with those provided in container-specific Letter of
inspection. Unnecessary handling can damage the container.
Instruction (LOI) or similar work instructions, container-
A leak test is not required but may be performed at the
specific procedures will take precedence
discretion of the inspector if serviceability is in question, based
(3) Inspection requirements and intervals are
upon visual inspection.
established to ensure that a serviceable stockpile of overpack
i. The SSC requires an external visual inspection, IAW
containers is available to address current and future leaker
applicable portions of Drawing DA 100/2 prior to issue to retail
contingencies. Installation personnel must compile and retain
accounts. Annual inspections of (1) wholesale assets or (2)
records of all inspections. Periodically, this information will be
containers issued to local retail accounts, but not designated
requested by the NICP/NMP to assess long-term container
as contingency stocks, are not necessary.
performance. All container defects must be recorded (by serial
number, if applicable) even if user maintenance is successful
j. 100 percent of contingency stocks at user installations
and the container is suitable for use.
will be visually inspected (internally and externally, including
components) and leak tested (except SSC) every 2 years IAW:
(4) Rejected overpacks that cannot be repaired at the
user level will be assigned CC-F and reported by memorandum
individual containers must be leak tested prior to use, unless
to the NICP addressee in para 1-5d(7). The memo should
leak testing has occurred within the preceding 90 days.
identify whether the container(s) is maintained in the
Generally, these leak-testing requirements are met by testing a
wholesale account, local retail account, or as a contingency
fraction of the contingency stock during the 90 day interval.
item.
SSCs do not require a leak test. Contingency stocks are
(5) Receipt Inspection.
Inspections should be
defined as those quantities of containers issued to local retail
performed in a clean, dry environment, protected from adverse
accounts that are projected for use during a two-year period.
weather conditions.
Individuals dressed in butyl rubber
Two-year projections will be based on local leaker histories or,
protective
clothing
should
not
perform
inspections.
by exception, can be directed by higher headquarters.
Installations will perform inspection for damage-in-transit
k. Leak Testing: Single Round Containers (SRCs) and
when overpacks are received directly from a government or
propelling charge containers will be helium leak tested using
contractor production facility and the overpacks have been
the Defense Ammunition Center (DAC) Validation Engineering
subjected to 100 percent leak testing and inspection by the
Leak Detection System. Operator instructions for using this
manufacturer.
Containers not specifically designed or
equipment are reflected in the DAC publication, "Portable
modified to serve as overpacks (e.g., propelling charge
Helium Leak Test Manual" dated October 2002. This manual
containers) and/or containers which were not subjected to
provides general information, operating instructions and
100-percent leak testing and inspection by the manufacturer,
settings for the Harris Regulator Model 415-125, the Helium
will be 100-percent tested and inspected IAW general and
Dispenser/25C9001, and the Matheson LeakHunter Plus
specific guidelines, as applicable, presented in paragraph 7-
8066.
The DAC manual will be used in lieu of the
7e(6).
manufacturer's User Manual packaged with each Matheson
(6) Periodic Inspection.
Inspections should be
LeakHunter Plus 8066. Containers that successfully pass this
performed in a clean, dry environment, protected from adverse
leak test can be assured of having an agent containment
weather conditions.
Individuals dressed in butyl rubber
capability of at least 1x10-4cc/He/0.5psi/sec. Leak tests must
protective clothing should not perform inspections.
The
be conducted during biennial inspections and immediately
criteria for inspecting overpack containers can be found as
prior to use, unless leak testing was performed within the
follows:
preceding 90 days. A tag or label will be affixed to each
overpack container indicating the date and results of last test.
(a) M55 Single Round Container (SRC): Table 7-3
(1) For SRCs (except M55 SRCs) and modified
(b) Propelling Charge Container: Table 7-4
overpacks assembled with shipping and storage O-rings
(c) 10"X 96" SRC; M500 (Modified) SRC; 12"X 56" (normally Buna N or Neoprene) and pre-packaged O-rings
Non-Standard SRC Overpack, 12" X 56" SRC, 7"x27" SRC and (normally Butyl rubber), the shipping and storage O-ring
should be installed to perform leak testing. The pre-packaged
9"X41" SRC: Container-Specific LOI
O-ring is to be used only during actual containerization
operations.
7-8
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