MIL-DTL-45204D
n.
Specify type (purity) (see 3.6.7).
o.
If identification markings are required (see 3.9).
p.
If other inspection facilities are to be specified (see 4.2).
q.
How inspection records are to be maintained (see 4.2).
r.
If inspection conditions are different then ISO 17025 (see4.2.2).
s.
If submittal of produce is different (see 4.4.1).
t.
Specify visual inspection level (see 4.4.2).
u.
Specify thickness, adhesion, hardness, heat resistance, embrittlement, and solderability
acceptance levels (see 4.4.3).
v.
If other than 2 specimens are to be tested (see 4.4.3.1).
w.
If adjustments are allowed based upon process history (see 4.4.3.1.1.1).
x.
If magnification for visual inspection is different (see 4.5).
y.
If embrittlement relief is allowed (see 4.6.6).
z.
If reduced testing is allowed (see 4.8).
aa.
Specify packaging requirements (see 5.1).
6.2.1 Basis metal parts' manufacturer. The manufacturer of the basis metal parts should provide
the plating facility with the following data:
a. Whether heat treatment has been performed or is required for stress relief (see 3.2.2).
b. Specify the plating equipment and processes (see 3.5)
c. Tensile loads required for embrittlement relief test (see 4.6.6).
6.3 Strikes and underplating. A copper, nickel, or copper plus nickel underplate may be used,
depending on the application and the environment. A soft gold strike from a separate plating
tank should follow any other undercoating and precede the final gold coating to improve
adhesion and prevent contamination of the main gold plating solution by metallic impurities.
6.3.1 Strike. Strike, as defined by this specification is the application of any plated material 10
microinches or less in thickness. An underplate is a deposit of greater thickness than a strike that
will impart some characteristic to the finished plated surface which the overplate would not
otherwise impart.
6.4 National Bureau of Standards Reference Material. Standards have been revised by the
national Bureau of Standards for determining weight by unit area (thickness of gold plating).
These are intended for calibrating coating thickness gages. For further information, contact the
National Bureau of Standards, Office of Standard Reference Materials. Since measurements by
beta backscatter and x-ray fluorescence methods not only depend on the coating thickness, but
also on the density of the deposit, calibration standards should have the same density as the test
specimen to be measured.
6.5 Superseding data. This specification supersedes MIL-G-14548 (Ord) and MIL-G-19788
(Navy Ord). Table VIII provides a cross-reference between MIL-G-45204 and the superseded
specifications.
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