MIL-DTL-85K
3.12 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or
environmentally preferable materials should be used to the maximum extent possible, provided that the
material meets or exceeds the operational and maintenance requirements, and promotes economically
advantageous life cycle costs.
3.13 Workmanship. The waveguide shall be free from defects of a nature that may interfere with
normal military applications. The waveguide shall be uniform in composition and wall thickness, straight
and smooth from end to end and shall be free from internal and external mechanical imperfections, and
shall have a clean, bright appearance in accordance with good commercial practice. In addition, the
interior surface of the waveguide shall be free from burrs, die marks, chatter marks, dirt, grease, scales,
and splinters (see 4.5.1).
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as
follows:
a. Materials inspection (see 4.2).
b. Conformance inspection (see 4.4).
4.2 Materials inspection. Materials inspection shall consist of certification that the materials listed in
table III, used in fabricating the waveguides, are in accordance with the applicable referenced
specifications or requirements prior to fabrication.
TABLE III. Materials inspection.
Material
Requirement
Applicable specification
paragraph
Aluminum - - - - - - - - - - - - - - - - - - - - -
Aluminum alloy - - - - - - - - - - - - - - - - - -
Copper - - - - - - - - - - - - - - - - - - - - - - -
Copper alloy - - - - - - - - - - - - - - - - - - -
Magnesium alloy - - - - - - - - - - - - - - - -
Silver alloy - - - - - - - - - - - - - - - - - - - -
Coin silver
Silver-lined copper - - - - - - - - - - - - - - -
ASTM-B372 and
Fine silver
Copper-clad invar - - - - - - - - - - - - - - -
4.3 Inspection conditions. Unless otherwise specified herein, all inspections shall be performed in
accordance with the test conditions specified in the "GENERAL REQUIREMENTS" of MIL-STD-202.
4.4 Conformance inspection.
4.4.1 Inspection of product for delivery. Inspection of product for delivery shall consist of groups A, B,
and C inspections.
4.4.1.1 Inspection lot. An inspection lot shall consist of all the waveguides of the same PIN, produced
under essentially the same conditions, and offered for inspection at one time.
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