MIL-DTL-23659F
MIL-DTL-23659F
APPENDIX A
IN-LINE INITIATOR CERTIFICATION
A.1. SCOPE
A.1.1. Scope. This appendix furnishes the requirements for the certification of In-Line
Initiators (ILI) used for safety sensitive initiation applications. ILI includes both Exploding Foil
Initiators (EFI) that are used for warhead initiation applications and Deflagrating In-Line
Initiators (DILI) that are used in ignition systems with deflagrating or pyrotechnic outputs. The
purpose of the certification program is to establish fundamental ILI characteristics including the
electrical response characteristics, soundness of mechanical design, output, basic safety
properties and resistance to deleterious service environments. The requirements in this
document are considered to be the minimum for general certification of any ILI. The
certification provided for in this document will normally be an interim step toward type
qualification of an ILI in a system, and will typically be supplemented by additional testing
peculiar to the specific service application for which the ILI is intended. Multi-point initiation
systems with multiple explosive outputs (multi-point initiators) are not specifically covered by
this document. The individual ILI, used in a multi-point system, can be evaluated as specified
herein when the tests are applicable. Any ILI with a single explosive output containing two or
more bridges should be evaluated with the most severe bridge combination energized in the tests
to demonstrate ILI safety and reliability in the worst case conditions. This appendix is a
mandatory part of the specification. The information contained herein is for compliance.
A.2. APPLICABLE DOCUMENTS
MIL-STD-1316
Fuze Design, Safety Criteria For
MIL-STD-1901
Munition Rocket and Missile Motor Ignition System Design, Safety
Criteria For
MIL-STD-1911
Hand-Emplaced Ordnance Design, Safety Criteria For
MIL-STD-202
Test Methods for Electronic and Electrical Component Parts
MIL-STD-331
Fuze and Fuze Components, Environmental and Performance Test For
STANAG 4170
Principles and Methodology for the Qualification of Explosive Materials
for Military Use
A.3. DESCRIPTION
A.3.1. General.
a. This document applies to ILI that contain only explosives that are qualified and approved
in accordance with the procedures of or listed in MIL-STD-1316 or MIL-STD-1901 for in-line
use. ILI shall use only those energetic materials approved for in-line use and ILI shall require
unique electrical stimulus in excess of 500 volts to function. These characteristics make ILI
suitable for in-line applications (i.e., leading, without interruption, directly to the warhead, rocket
motor, or other significantly hazardous quantity of energetic material).
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