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

CONTENTS

PARAGRAPH

PAGE

B.6 NOTES ............................................................................................................................................................... 62

B.6.1 Intended use ................................................................................................................................................ 62

B.6.2 Application of the QML product assurance level to existing requirements ................................................... 62

B.6.2.1 Use of existing master drawings ............................................................................................................ 62

B.6.2.2 Form, fit, and function ............................................................................................................................ 62

B.6.2.3 Certification of conformance .................................................................................................................. 63

B.6.3 Benefits of the QML product assurance level............................................................................................... 63

B.6.4 Retention of qualification.............................................................................................................................. 63

B.6.5 Certification of conformance and acquisition traceability.............................................................................. 63

B.6.6 Past specification revisions .......................................................................................................................... 63

C = 0 SAMPLING, TEST EQUIPMENT, AND SUITABILITY OF INSPECTION FACILITIES ..................................... 65

C.1 SCOPE ............................................................................................................................................................... 65

C.1.1 Scope........................................................................................................................................................... 65

C.2 APPLICABLE DOCUMENTS.............................................................................................................................. 65

C.2.1 General ........................................................................................................................................................ 65

C.2.2 Non�Government publications..................................................................................................................... 65

C.2.3 Order of precedence .................................................................................................................................... 66

C.3 DEFINITIONS AND SYMBOLS .......................................................................................................................... 66

C.3.1 Definitions .................................................................................................................................................... 66

C.3.2 Symbols ....................................................................................................................................................... 66

C.4 STATISTICAL SAMPLING PROCEDURES AND SAMPLE PLAN TABLE ........................................................ 66

C.4.1 General ........................................................................................................................................................ 66

C.4.2 Acceptance and procedure .......................................................................................................................... 67

C.4.2.1 Acceptance number............................................................................................................................... 67

C.4.2.2 Rejection number .................................................................................................................................. 67

C.4.3 Tightened inspection.................................................................................................................................... 67

C.4.4 Sample size ................................................................................................................................................. 67

C.4.5 C = 0 sample plan construction.................................................................................................................... 67

C.5 TEST EQUIPMENT, CALIBRATION, MEASUREMENTS, AND INSPECTION FACILITIES.............................. 68

C.5.1 Test equipment and calibration .................................................................................................................... 68

C.5.1.1 Resolution of measurement devices and test equipment capability ...................................................... 68

C.5.1.2 Electrical test frequency ........................................................................................................................ 68

C.5.2 Test methods ............................................................................................................................................... 68

C.5.2.1 Acquiring activity or manufacturer imposed tests .................................................................................. 68

C.5.2.2 Test method alternatives or variations................................................................................................... 68

C.5.2.3 Procedure in case of test equipment malfunction or operator error ....................................................... 68

C.5.3 Numeric reporting ........................................................................................................................................ 68

C.5.3.1 Observed values (true and nominal)...................................................................................................... 68

C.5.3.2 Significant digits .................................................................................................................................... 69

C.5.3.3 Rounding method .................................................................................................................................. 69

C.5.4 Control based on uncertainty ....................................................................................................................... 69

C.6 SUITABILITY OF INSPECTION FACILITIES ..................................................................................................... 70

C.6.1 Suitability of inspection facilities................................................................................................................... 70

C.6.2 Suitability status and test reports ................................................................................................................. 70

C.6.3 Referee testing ............................................................................................................................................ 70

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