MIL-DTL-29606A
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
FED-STD-228.
4.4 Strand inspection. When required by the procuring activity, strand inspection shall
consist of certification to the ASTM or ANSI standard when applicable (see table I), verification
of coating thickness (if applicable), and any additional inspections required to ensure the strands
meet the requirements of the individual strand specification (if applicable).
4.4.1 Coating thickness. Coating thickness of nickel and silver coating strands shall be
measured in accordance with the ASTM-B355 and ASTM-B298 test procedures respectively.
4.4.1.1 Coating thickness of material types SCC, SCC1, SCA, SCA1, and SCU. For silver
coated material types SCC, SCC1, SCA, SCA1, and SCU, statistical process control
methodology in accordance with EIA-557 shall be applied for control of circumferential non-
uniformity (see 6.5.6) and local minimum coating thickness (see 6.5.7). The SPC program shall
be designed to improve circumferential non-uniformity and local minimum coating thickness
measurements so that these trend away from the occurrence of thin or voided silver.
4.4.1.2 Coating thickness of material types SCC1 and SCA1. For silver coated material
types SCC1 and SCA1, micro-section inspection samples shall be prepared in accordance with
ASTM-B961. Micro-section inspections shall be in accordance with ASTM-B961, except that
the coating thicknesses specified herein shall be in effect (see 3.2.2.1 and 3.2.2.2). When
required by the procuring activity, photographs shall be captured and saved as proof of
inspection. The magnification scale of photographs shall be identified.
4.5 First article inspection. First article inspection shall consist of verification of all
requirements specified herein, including all examinations and tests specified in 4.7. First article
inspection shall include the solderability test on silver coated conductors (see 4.7.3.1 and 6.2g).
4.5.1 First article acceptance criteria. Failure to meet the requirements specified herein
shall be cause for rejection of the first article sample. Acceptance or rejection of the first article
sample will be based on the objective quality evidence and as defined in ASQC-A8402.
4.6 Quality conformance inspection. Quality conformance inspection shall consist of all
tests specified in 4.7 and shall be performed on every lot of conductors purchased in accordance
with this specification.
4.6.1 Sampling for visual and dimensional inspection. From each lot (see 6.5.2), sample
units (see 6.5.4) shall be selected at random in accordance with ASQ Z1.4. The inspection level
shall be S-2 unless otherwise specified in the ordering data (see 6.2h). No allowance will be
made for defects.
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