MIL-DTL-62073H(AT)
Government at a site(s) it will select. Vehicles selected for comparison tests shall be new and
shall have successfully passed the QCI specified in 4.3.
Verification methods.
4.6
4.6.1 Verification alternatives. When specified, the manufacturer may propose
alternative test methods, techniques, or equipments including the application of statistical
process control, tool control, or cost-effective sampling procedures, to verify performance.
See
the contract for alternatives that replace verifications required by this specification.
4.6.1.1 Welding requirements. To determine conformance to 3.4.1, Welding
procedures, workmanship specimens and welder certifications will be reviewed during FAT and
Control test.
4.6.2 Materials, design, and construction. Conformance to 3.2, 3.2.1 through 3.2.1.3,
3.3 and 3.4 shall be determined by inspection of contractor records providing proof or
certification that design, construction, processing, and materials conform to requirements.
Applicable records shall include drawings, specifications, design data, receiving inspection
records, processing and quality control standards, vendor catalogs and certifications, industry
standards, test reports, and rating data.
4.6.2.1 Examination. Conformance to 3.2, 3.2.1, 3.5.1 through 3.5.7, 3.5.7.2.2
through 3.5.7.4 and 3.6.1 shall be determined by the examination specified in table V.
4.6.3 Operational verification. Each trailer shall be tested under environmental
conditions of 4.9 and 4.9.1 without degradation in performance.
a. Electrical circuits. To determine conformance to 3.5.2.1, electrical circuits shall
maintain continuity from end to end without evidence of internal or external shorts
during all trailer operating conditions.
b. Lights. To determine conformance to 3.5.2.2, lights shall operate throughout all
trailer operating conditions and shall conform to SAE J1292. Turn signal lamps
shall conform to SAE J588. The brake lights shall override the four-way emergency
flashers or the two systems shall be independent of each other.
c. Running light requirements. To determine conformance to 3.5.2.3, running lights
shall operate using the commercial U.S. 12/24 volt (V) LED type that fully meets the
DOT/FMVSS requirements when 12 or 24 volts DC operate the running lights.
License plate light and related harness is not to be furnished. Mid-ship turn signals
are not to be furnished. Conspicuity markings using reflective sheeting tape with
extended life shall be furnished. Commercial aluminum frame reflectors (painted
before assembly) are to be used.
d. Blackout lighting system. To determine conformance to 3.5.3.4, blackout light
systems shall operate under the energy emission of any trailer light source and to be
illuminated in blackout mode be limited to the visible spectrum of 380 to 700
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