MIL-DTL-23919C(SH)
4.5.10 Underwater replacement. Test will require one reference cell assembly and one additional element. The
manufactured assembly shall be placed with original element in natural seawater for a period of 2 weeks. Reference
cell voltage versus a standard cell (see 4.5.2.1) shall be measured. After 2 weeks of exposure, the reference element
shall be replaced with a new element while underwater without removing the assembly from the test tank. Voltage
shall be measured for an additional 2 weeks. At the end of this measurement period, the voltage difference
measured shall be within ±10 millivolts of the Performance A elements. Performance B elements shall meet the
requirements of 3.4.1.
4.5.11 Shock testing. Shock testing shall be accomplished in accordance with MIL-S-901. When specified
(see 6.2), certification of test results shall be provided.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or
order (see 6.2). When packaging of materiel is to be performed by DoD or in-house contractor personnel, these
personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging
requirements are maintained by the Inventory Control Point's packaging activities within the Military Service or
Defense Agency, or within the military service's system commands. Packaging data retrieval is available from the
managing Military Department's or Defense Agency's automated packaging files, CD-ROM products, or by
contacting the responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)
6.1 Intended use. The reference electrodes are primarily intended for use in corrosion prevention in seawater of
ship hulls, structures, sea chests, sonar domes, and similar marine structures. The reference electrodes supply the
central signal to the automatic control impressed current cathodic protection system.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a.
Title, number, and date of this specification.
b.
Type, grade, class, and performance level (see 1.2).
c.
When first article is required (see 3.1).
d.
Verification data (see 4.1).
e. Certification of thickness and longevity (life) calculations should be provided to support service life
requirements (see 4.5.9).
f.
Certification of shock test results should be provided (see 4.5.11).
g.
Packaging requirements (see 5.1).
6.3 Subject term (key word) listing.
Control
Corrosion
Electrode
6.4 Changes from previous issue. Marginal notations are not used in this revision to identify changes with
respect to the previous issue, due to the extensiveness of the changes.
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