MIL-PRF-50884 Printed Wiring Board, Flexible Or Rigid-Flex, General Specification ForThis specification establishes the performance and qualification requirements for flexible and rigid-flex printed wiring boards with or without plated through holes \(see 6.1\). Verification is accomplished through the use of one of two methods of product assurance \(appendix A or appendix B\). Detail requirements, specific characteristics, and other provisions which are sensitive to the particular intended use are specified in the applicable master drawing.

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MIL�PRF�50884F

6.7 Design standard. This document contains requirements and guidelines for the testing of printed wiring boards

that were designed to and or make use of test coupons conforming to IPC�2221 and the flex and rigid-flex design

details unique to IPC�2223. See appendix D for additional guidance regarding the verification of panels using

different design standards.

6.8 Environmentally preferable material. Environmentally preferable materials should be used to the maximum

extent possible to meet the requirements of this specification. As of the dating of this document, the U.S.

Environmental Protection Agency (EPA) is focusing efforts on reducing 31 priority chemicals. The list of chemicals

and additional information is available on their website https://www.epa.gov/osw/hazard/wastemin/priority.htm.

Included in the list of 31 priority chemicals are cadmium, lead, and mercury. Use of these materials should be

minimized or eliminated unless needed to meet the requirements specified herein (see section 3).

6.9 Automatic update notification. An electronic mail notification option is available to registered ASSIST users. If

you do not receive an electronic mail message that an amendment or revision of this document has been completed,

information pertaining to how to make use of this option within ASSIST may be obtained from DLA Land and

Maritime, ATTN: VQE, P.O. Box 3990, Columbus, Ohio 43218�3990, or by email to 5998.Qualifications@dla.mil, or

6.10 Subject term (key word) listing.

Design standard

Master drawing

Qualified Manufacturer List (QML)

Qualified Product List (QPL)

Test coupon

Product assurance program

6.11 Changes from previous issue. Marginal notations are not used in this revision to identify changes with

respect to the previous issue due to the extensiveness of the changes.