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e.
Meniscus cracks and chipouts which completely surround the terminal are acceptable if:
(1)
The meniscus cracks and chipouts do not extend beyond one-half the distance from the
terminal to the surrounding header metal, or
(2)
The meniscus cracks and chipouts do not extend beyond one-quarter of the distance
from the terminal to the surrounding header metal and a portion of the meniscus cracks
and chipouts does not extend beyond three-quarters of the distance from the terminal to
the surrounding header metal if that portion of the meniscus cracks and chipouts does
not span more than 180 (see figure 4, reference E).
f.
An internal bubble whose diameter does not exceed one-third the distance between the terminal
and the surrounding header metal is acceptable.
Microscopic examination with up to 10X magnification shall be used. In case of dispute, all relays shall
meet the applicable insulation resistance, dielectric withstanding voltage, and seal requirements,
regardless of the acceptability of the header glass.
The above requirements are not applicable after group B and group C inspections.
3.29 Workmanship. The relays shall be fabricated in such a manner as to be uniform in quality, and
shall be free from cracked or displaced parts, sharp edges, burrs, and other defects that will affect life,
serviceability, and appearance.
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