MIL-A-8625

Anodizing
Type I
Type IB
Type IC
Type II
Type IIB
Type III
Coupon Testing - Monthly
MIL-A-8625 ¶4.3.3.1 requires monthly testing of
anodized panels (test specimens) to confirm that your
process is meeting specification requirements. These
tests include coating weight, corrosion resistance, light
fastness and abrasion resistance. The exact tests and
parameters depend upon the type, class and sealing.
See MIL-A-8625 for details.
MIL-C-26074

Electroless
Nickel
Class 1
Class 2
Class 3
Class 4
Coupon Testing - Quarterly
MIL-C-26074 requires quarterly testing of plated panels
for destructive adhesion (¶ 4.4.1), destructive thickness (¶
4.4.5), and (¶ 3.3.4) corrosion resistance. Datalab
performs these tests on a group of panels prepared
according to the specification. See MIL-C-26074 for
details.
ASTM B733

Electroless
Nickel
Type I
Type II
Type III
Type IV
Type V
Coupon Testing - Monthly
ASTM B733 ¶7.3.1 and ¶7.3.2 require monthly testing of
phosphorus content in the deposit and for
microhardness. Datalab has the equipment and
experience to perform these tests and to keep records of
the results for SPC and audit purposes. Plating porosity
and adhesion are specified as acceptance tests;
however, periodic correlation of in-house results is
encouraged.
AMS-C-26074

Electroless
Nickel
Class 1
Class 2
Class 3
Class 4
Coupon Testing - Monthly
AMS-C-26074 ¶4.4.2: requires monthly testing for
hydrogen embrittlement per ASTM F 519; ¶4.4.4:
requires monthly testing for plating hardness; Datalab
can perform these required tests and report results.

Coupon Testing - Quarterly
AMS-C-26074 ¶4.4.5: requires a quarterly destructive
thickness test to be compared with non-destructive
acceptance test method; ¶3.3.4: Grade A coatings
(exceeding 1 mil thickness) require corrosion resistance
testing per ASTM B 117 if the plated material is
hardened steel (>Rockwell C40); Datalab can perform
these tests for you and report results.
AMS 2404

Electroless
Nickel
Class 1
Class 2
Class 3
Class 4
Coupon Testing - Monthly
AMS 2404 ¶3.4.3 requires monthly testing for corrosion
resistance, ¶3.4.4 requires testing for plating hardness,
¶3.4.5 requires testing for hydrogen embrittlement,
¶3.4.6 requires testing for internal stress and ¶3.4.7
requires testing for phosphorus content.
FED QQ-N-290

Nickel Plating
Class 1
Class 2

SB
SD
M
Coupon Testing - Monthly
FED QQ-N-290 ¶4.4.3 requires plated panels for
destructive tests to be included with each process lot
(see FED QQ-N-290 for details); however, AMS QQ-N-290
allows monthly testing for hydrogen embrittlement,
destructive thickness and destructive adhesion to confirm
process performance.
FED QQ-P-416

Cadmium
Plating
Type I
Type II
Type III
Coupon Testing - Monthly
FED QQ-P-416 requires plated panels to be tested
monthly. ¶4.5.1 requires destructive adhesion testing,
¶4.5.2 requires corrosion resistance (salt spray) and
¶4.5.3 requires embrittlement testing on hard steels (see
FED QQ-P-416 for details).
FED QQ-C-320

Chrome Plating
Type I
Type II
Coupon Testing - Monthly
FED QQ-C-320 requires plated panels to be tested
monthly. ¶3.4.2.3 requires hardness testing, ¶3.4.2.4
requires porosity testing and ¶3.2.6 requires
embrittlement testing on hard steels (see FED QQ-C-320
for details).
AMS 2403

Nickel Plating
  Coupon Testing - Periodic
The period for testing should be established by
agreement between supplier and purchaser. AMS 2403
¶3.4.3 requires testing for heat resistance, ¶3.4.4 requires
testing for corrosion resistance, and ¶3.4.5 requires
testing for hydrogen embrittlement.
AMS 2423

Nickel Plating
Hard Deposit
  Coupon Testing - Periodic
The period for testing should be established by
agreement between supplier and purchaser. AMS 2423
¶3.4.3 requires stress testing and ¶3.4.5 requires testing
for hydrogen embrittlement.
AMS 2416

Nickel-Cadmium
Diffused
  Coupon Testing - Periodic
The period for testing should be established by
agreement between supplier and purchaser. AMS 2416
¶3.3.2 requires testing for heat resistance, ¶3.3.3 requires
testing for corrosion resistance, and ¶3.3.4 requires a
periodic nickel stress test.
AMS 2400

Cadmium
Plating
  Coupon Testing - Periodic
The period for testing should be established by
agreement between supplier and purchaser. AMS 2400
¶3.4.3 requires testing for corrosion resistance and ¶3.4.4
requires testing for hydrogen embrittlement.
MIL-G-45204
(ASTM B488)

Gold Plating
Type I
Type II
Type III

Grade A
Grade B
Grade C
Grade D
Coupon Testing - Periodic
MIL-G-45204 and ASTM B488 require testing for plate
purity (¶X5.3.4), and plate hardness (¶X5.3.4) (see
MIL-G-45204 for details). In addition, to maintain gold
purity, we recommend testing a bath sample for Pb, Cr,
Cu and Fe to ensure that impurities test below
recommended limits. In soft gold baths, Co and Ni
should also be tested as impurities.
AMS 2422

Gold Plating
  Coupon Testing - Periodic
The period for testing should be established by
agreement between supplier and purchaser. AMS 2422
¶3.4.4 requires tests for plate purity and ¶3.4.5 requires
tests for corrosion resistance.
MIL-C-14550

Copper Plating
  Coupon Testing - Periodic
MIL-C-14550 ¶4.3.2 requires testing for thickness
(destructive), adhesion (destructive), embrittlement and
solderability (see MIL-C-14550 for details).
AMS 2418

Copper Plating
Type 1
Type 2
Coupon Testing - Periodic
The period for testing should be established by
agreement between supplier and purchaser. AMS 2418
¶3.4.4 requires periodic tests for hydrogen embrittlement
and ¶3.4.5 requires tests for solderability.
ASTM B734

Copper Plating
  Coupon Testing - Periodic
The period for testing should be established by
agreement between supplier and purchaser. A sampling
plan will require coating thickness testing (¶8.2),
adhesion testing (¶8.3), porosity (¶8.3) and solderability
(¶8.5).
AMS 2402

Zinc Plating
  Coupon Testing - Periodic
The period for testing should be established by
agreement between supplier and purchaser. AMS 2402
¶3.4.2 requires adhesion bend test and ¶3.4.3 requires
corrosion resistance testing.
AMS 2408

Tin Plating
  Coupon Testing - Periodic
AMS 2408 ¶3.4.2 requires periodic adhesion testing.
AMS 2409

Tin Plating
Immersion
None
Coupon Testing - Periodic
AMS 2409 ¶3.5.1 requires periodic testing of coating
thickness and ¶3.5.2 requires adhesion testing.
MIL-T-10727

Tin Plating
Type I
Type II
Coupon Testing - Periodic
MIL-T-10727 ¶4.6.4 requires periodic salt spray testing
for corrosion resistance. See MIL-T-10727 for details.
MIL-P-81728

Tin-Lead
Plating
  Coupon Testing - Monthly (minimum)
MIL-P-81728 requires monthly composition testing
(¶4.5.1), porosity testing (¶4.5.4) and embrittlement
testing (¶4.5.6). See MIL-P-81728 for details.
MIL-R-46085

Rhodium
Plating
Class 1
Class 2
Class 3
Class 4
Class 5
Coupon Testing - Periodic
MIL-R-46085 ¶4.4.3 requires reflectivity tests and ¶4.4.4
requires hydrogen embrittlement testing.
ASTM B700

Silver Plating
Type I
Type II
Type III

Grade A
Grade B
Grade C
Grade D

Class N
Class S
Coupon Testing - Periodic
The period for testing should be established by
agreement between supplier and purchaser. ASTM B700
requires periodic testing of plate purity (¶8.6), plate
hardness (¶8.7), reflectance (¶8.8), resistivity (¶8.9), and
hydrogen embrittlement per ASTM F519.
AMS 2410

Silver Plating
None
Coupon Testing - Periodic
The period for testing should be established by
agreement between supplier and purchaser. AMS 2410
¶3.4.2 requires periodic testing of plate purity.
FED QQ-S-365

Silver Plating
Type I
Type II
Type III

Grade A
Grade B
Coupon Testing - Periodic
The period for testing should be established by
agreement between supplier and purchaser. FED
QQ-S-365 ¶4.5.6 requires hydrogen embrittlement test
per ASTM E8 (replaced by ASTM F519). See FED
QQ-S-365 for details.
AMS 2411

Silver Plating
- High-Temp
None
Coupon Testing - Periodic
AMS 2411 ¶3.4.2 requires plate purity testing and ¶3.4.4
requires hydrogen embrittlement testing per ASTM F519.
AMS 2412

Silver Plating
- Copper Strike
None
Coupon Testing - Periodic
AMS 2412 ¶3.4.2 requires periodic testing of plate purity
and ¶3.4.4 requires periodic testing for hydrogen
embrittlement
MIL-C-5541
MIL-DTL-5541
Chemfilm

Chromate
Conversion
Class 1A
Class 3
Coupon Testing - Monthly
MIL-DTL-5541F (the active specification) ¶3.6.1 requires
monthly testing of corrosion resistance (salt spray) and
¶3.6.2 requires paint adhesion testing. ¶3.7 requires
testing of contact resistance on Class 3 coatings. See
MIL-DTL-5541 for details.
MIL-DTL-81706

Chemfilm

Chromate
Conversion
Class 1A

Class 3
Coupon Testing - Qualification
MIL-DTL-81706 ¶4.2 requires process qualification for
corrosion resistance; ¶4.2 for contact resistance before
and after salt spray, for paint adhesion, for coating
weight and for adhesion on aluminum (7075-T6).
MIL-DTL-13924

Black Oxide

for Ferrous
Metals
Class 1
Class 2
Class 3
Class 4
Coupon Testing - Periodic
MIL-DTL-13924 specifies requirements that must be
verified by periodic tests for corrosion resistance per
¶4.4.3 and hydrogen embrittlement per ¶4.4.4.
ASTM A967

Passivation
for Stainless
Steel Parts
  Coupon Testing - Periodic
Any of the acceptance tests listed in ASTM A967 should
be corrolated to laboratory results. Datalab will perform
any of the tests listed (Practice A-F) as required by the
base material alloy
Specification
Callouts
Required certification testing