MIL-A-8625
Anodizing
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Type I Type IB Type IC Type II Type IIB Type III
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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.
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MIL-C-26074
Electroless Nickel
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Class 1 Class 2 Class 3 Class 4
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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.
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ASTM B733
Electroless Nickel
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Type I Type II Type III Type IV Type V
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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.
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AMS-C-26074
Electroless Nickel
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Class 1 Class 2 Class 3 Class 4
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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.
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AMS 2404
Electroless Nickel
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Class 1 Class 2 Class 3 Class 4
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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.
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FED QQ-N-290
Nickel Plating
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Class 1 Class 2
SB SD M
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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.
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FED QQ-P-416
Cadmium Plating
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Type I Type II Type III
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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).
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FED QQ-C-320
Chrome Plating
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Type I Type II
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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).
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AMS 2403
Nickel Plating
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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.
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AMS 2423
Nickel Plating Hard Deposit
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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.
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AMS 2416
Nickel-Cadmium Diffused
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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.
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AMS 2400
Cadmium Plating
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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.
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MIL-G-45204 (ASTM B488)
Gold Plating
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Type I Type II Type III
Grade A Grade B Grade C Grade D
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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.
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AMS 2422
Gold Plating
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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.
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MIL-C-14550
Copper Plating
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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).
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AMS 2418
Copper Plating
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Type 1 Type 2
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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.
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ASTM B734
Copper Plating
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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).
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AMS 2402
Zinc Plating
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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.
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AMS 2408
Tin Plating
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Coupon Testing - Periodic AMS 2408 ¶3.4.2 requires periodic adhesion testing.
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AMS 2409
Tin Plating Immersion
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None
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Coupon Testing - Periodic AMS 2409 ¶3.5.1 requires periodic testing of coating thickness and ¶3.5.2 requires adhesion testing.
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MIL-T-10727
Tin Plating
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Type I Type II
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Coupon Testing - Periodic MIL-T-10727 ¶4.6.4 requires periodic salt spray testing for corrosion resistance. See MIL-T-10727 for details.
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MIL-P-81728
Tin-Lead Plating
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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.
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MIL-R-46085
Rhodium Plating
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Class 1 Class 2 Class 3 Class 4 Class 5
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Coupon Testing - Periodic MIL-R-46085 ¶4.4.3 requires reflectivity tests and ¶4.4.4 requires hydrogen embrittlement testing.
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ASTM B700
Silver Plating
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Type I Type II Type III
Grade A Grade B Grade C Grade D
Class N Class S
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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.
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AMS 2410
Silver Plating
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None
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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.
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FED QQ-S-365
Silver Plating
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Type I Type II Type III
Grade A Grade B
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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.
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AMS 2411
Silver Plating - High-Temp
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None
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Coupon Testing - Periodic AMS 2411 ¶3.4.2 requires plate purity testing and ¶3.4.4 requires hydrogen embrittlement testing per ASTM F519.
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AMS 2412
Silver Plating - Copper Strike
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None
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Coupon Testing - Periodic AMS 2412 ¶3.4.2 requires periodic testing of plate purity and ¶3.4.4 requires periodic testing for hydrogen embrittlement
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MIL-C-5541 MIL-DTL-5541 Chemfilm
Chromate Conversion
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Class 1A Class 3
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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.
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MIL-DTL-81706
Chemfilm
Chromate Conversion
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Class 1A
Class 3
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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).
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MIL-DTL-13924
Black Oxide
for Ferrous Metals
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Class 1 Class 2 Class 3 Class 4
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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.
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ASTM A967
Passivation for Stainless Steel Parts
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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
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