MILPRF55110G
APPENDIX A
A.6.3
A.6.3 Qualification master drawings. Although the qualification test specimen master drawings IPC-100041,
IPC-100042, IPC-100043, and IPC-100044 specified in A.2.1.1 specifies the use of rigid base materials compliant to
MIL-P-13949, manufacturer's can qualify using base material by specifying the base material on the application for
qualification. In addition, the zone C (except for the external conductor traces on test coupon E5) of the qualification
master drawing is required to be present on the qualification test specimen and is to be examined during qualification
testing.
A.6.3.1
A.6.3.1 Transference of qualification. Manufacturers currently qualified to MIL-PRF-55110F will have their
qualification transferred to this document. The expiration date of their current qualification will not be changed.
Qualifications in process (before the date of this document) will be performed to the requirements MIL-PRF-55110F
with amendment 1. New applications for qualification (after the date of this document) will be performed to the
requirements of this revision.
A.6.3.2
A.6.3.2 Qualification expiration and QPL-55110. Qualification listings within QPL-55110 for manufacturers
qualified under this appendix (QPL product assurance level) includes the qualification expiration date as the last six
digits of the test reference number. This date, formatted as (month/day/year), is the actual qualification expiration
date for that listing. This date signifies that the company is no longer qualified (unless notified in writing by the
qualifying activity) whether or not that individual listing has been removed the QPL. If the company has not requalified
before the next issue of the QPL is published, then the listing will not be included on the updated QPL.
A.6.4
A.6.4 Cleanliness, alternate methods. The following methods of determining the cleanliness of printed wiring
boards have been shown to be equivalent to the resistance of solvent extract test method:
The Kenco Alloy and Chemical Company, Incorporated, "Omega MeterTM, Model 200."
a.
Alpha Metals Incorporated, "IonographTM" (see URL: https://www.scscookson.com).
b.
Zero Systems, Incorporated, "Zero IonTM, Model ZI100"(see URL: https://www.aqueoustech.com).
c.
Westek, "ICOM 5000TM."
d.
Table AVI lists the equivalence factors for these methods in terms of microgram equivalents of sodium chloride per
unit area. table A-VI TABLE AVI
TABLE AVI. Equivalence factors.
Equivalents of sodium chloride
Related
Method
Equivalence
IPC-TM-650
Micrograms per
Micrograms per
factors
test method
square inch
square cm
Resistance of solvent extract (ROSE)
1.00
10.06
1.56
2.3.25
Omega meterTM
1.39
14.00
2.20
2.3.25
IonographTM
2.01
20.00
3.10
2.3.25
Zero ionTM
3.68
37.00
5.80
N/A
ICOM 5000TM
2.20
22.00
3.40
N/A
A.6.5
A.6.5 Certified suitable laboratories (acceptable to the Government). Government accepted test laboratories are
those facilities (either internal to the QPL manufacturer or a separate independent laboratory) that have demonstrated
their ability to perform the verification test required by this document. A list of laboratories that have been certified is
available at https://www.dscc.dla.mil/offices/sourcing_and_qualification. Search for a document titled "PWB
40
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