SOW FY25 SLAP Tomahawk Electric Detonator.docx

STATEMENT OF WORK

FOR ORDNANCE ASSESSMENT TESTING OF

TOMAHAWK ELECTRIC DETONATOR (P/N 76Z2737-7, -9)

1 INTRODUCTION

Scope. This statement of work (SOW) defines the efforts to conduct non-destructive, environmental, and functional (performance) testing of forty-two (42) Tomahawk Electric Detonators (Raytheon P/N 76Z2737-7, -9, PacSci P/N 817447) at Pacific Scientific Energetic Materials Co. located in Hollister, CA for the purpose of ordnance assessment. The electric detonator test sample will consist of fleet returned units provided as government furnished material (GFM) by Naval Surface Warfare Center, Indian Head Division (NSWC IHD).

Background. The last ordnance assessment testing was conducted at Pacific Scientific Energetic Materials Co. located in Hollister, CA in May 2021 under contract #N00174-20-P-0336. Data resulting from non-destructive, environmental, and functional testing of government furnished fleet returned units is used to evaluate ordnance safety, performance, and reliability of the aged parts.

Government Furnished Material (GFM). The Government shall provide the following GFM to the contractor for use in performance of this contract:

Electric Detonator (Raytheon P/N 76Z2737-7, -9, PacSci P/N 817447) 42 each Only the property listed above and on the GFP Attachment will be furnished by the Government. All other property required for performance of this contract shall be furnished by the contractor.

Within 30 days after GFM is determined by the contractor to be lost, damaged, destroyed, no longer usable, or no longer needed for the performance of the contract, the contractor shall notify the Contracting Officer, in writing, thereof.

Disposition instructions for the GFM are as follows: All material shall be destroyed by the contractor.

The contractor shall submit the Government Property Inventory Report within 30 days after completion of functional testing in accordance with CDRL A001.

On-Site Visit and Coordination. The contractor shall notify NSWC IHD at least ten (10) working days prior to functional testing so government representative(s) can make travel arrangements to witness testing.

APPLICABLE DOCUMENTS

Drawings:

Pacific Scientific Energetic Materials Company Drawing No. 817447, Detonator, Electric Specification.

Specification No. 76Z2738, Product Fabrication Specification Separation System Booster Test Procedure.

Pacific Scientific Energetic Materials Company Document No. TP700169, Acceptance Test Procedure for Detonator, Electric

REQUIREMENTS

Test Procedure. The contractor shall provide the latest revision of TP700169 and the Test Work Request to the Government. The Government shall review the Test Work Request and provide approval at least 15 working days prior to start of test program in accordance with CDRL A002.

Test Program. Conduct testing in order shown in Table 1, and in accordance with SOW section 3.2 in its entirety. A data pack, including all inspection and test results, test data, traces, photographs (pre-test units, test set ups, and post-test units), non-conformance reports, and equipment and calibration list, in the below subsections shall be delivered in accordance with CDRL A003.

Table 1: Test Matrix

Functional (Dent Output) Test

Non-destructive Inspections and Electrical Tests. Non-destructive inspection and test results for the following sections shall be recorded, and photographs shall be taken of each test setup. A copy of inspection and test results, FET data sheets, photographs, and associated non-conformance reports shall be delivered in the data pack.

Examination of detonators shall be conducted on units in Table 1 in accordance with TP700169 to check each unit for compliance with PacSci drawing 817447. True position of the detonator tip shall be measured and recorded on data sheet. Inspection report with true position data shall be provided in the data pack.

X-ray radiographic inspection shall be conducted on units in Table 1 in accordance with Pacific Scientific TP700169. If possible, all units shall be on one board for x-ray. Radiographic inspection report and copy of digital x-ray images shall be provided in the data pack.

Bridgewire resistance testing shall be conducted on units in Table 1 in accordance with Pacific Scientific TP700169. Table 1 provides the sequence in which bridgewire testing shall be performed for each group of detonators. Bridgewire resistance test results and FET data sheets shall be provided in the data pack.

Insulation resistance shall be conducted on units in Table 1 in accordance with Pacific Scientific TP700169. Insulation resistance test results and FET data sheets shall be provided in the data pack.

Dielectric strength shall be conducted on units in Table 1 in accordance with Pacific Scientific TP700169. Dielectric strength test results and FET data sheet shall be provided in the data pack.

The Thermal Transient Test (TTT) shall be conducted on units in Table 1 in accordance with the manufacturing procedure. Detonators shall be subjected to TTT by applying a 1.0 amp/40 ms pulse to measure the electro-thermal characteristics of the internal bridge circuit and the explosive interface, for information only. The TTT readings shall be between 5 mV and 18 mV. TTT test results and FET data sheets shall be provided in the data pack.

Hermetic seal (leak) testing shall be conducted on units in Table 1 in accordance with Pacific Scientific TP700169. Hermetic seal test results shall be provided in the data pack.

N-ray radiographic inspection shall be conducted on units in Table 1 in accordance with Pacific Scientific TP700169. If possible, all units shall be on one board for N-ray. Radiographic inspection report and copy of digital n-ray images shall be recorded and provided in the data pack.

Electrostatic discharge (ESD) testing shall be conducted on units in Table 1 in accordance with Pacific Scientific TP700169. Electrostatic discharge test data and results shall be provided in the data pack.

Temperature-Shock/Humidity/Altitude (TSHA). TSHA testing shall be conducted on units as specified in Table 1 in accordance with Pacific Scientific TP700169. TSHA exposure records and results, temperature/humidity-time plots, and test set up and post-test photographs shall be provided in the data pack.

No-Fire Current. No-fire current testing shall be conducted as specified in Table 1 in accordance with Pacific Scientific TP700169. No-fire test results and photographs shall be provided in the data pack.

Functional Test.

Serialize and perform hardness test on all dent blocks. Rockwell hardness shall be B70 -B95. Dent block hardness data shall be recorded and provided in data pack.

A marriage log of dent block serial number to detonator serial and lot number for all test units shall be provided in the data pack.

Functional testing shall be conducted on the units as specified in Table 1 in accordance with Pacific Scientific TP700169, except temperature conditioning at temperatures -65±5°F, 70±18°F, or 160±5°F. The detonator, dent block, and confining sleeve shall be temperature conditioned as an assembly. Temperature conditioning time for hot and cold temperatures shall be a minimum of 4 hours and no greater than 24 hours. The Government shall provide the sample selection for which detonator serial numbers will be conditioned/tested at what temperatures.

Dent output test data including dent depth (inches) and function time (milliseconds) shall be recorded and provided with current-voltage-audio vs. time scope traces and digital data in the data pack. Non-conformance report(s) shall be provided for any unit that does not meet the requirements for testing and inspections conducted. Photographs shall be provided for pre-fired units, test setup, and post fired dent blocks and detonators. Post fire photographs shall include the pin cavity and the output end orientations to document any hot gas blow-by around the pins/insulation and complete booster tip functioning. Photographs shall be provided in the data pack.

Test Failures. In the event of any failure, the contractor shall be limited to verifying the respective test setup and photographing test item and test setup. Contractor shall notify the Government representative before proceeding with testing. The contractor must retain any failed units for at least 30 days after testing or until released in writing for disposal by a government representative, whichever comes first.

DELIVERABLES

Government Property Inventory Report (CDRL A001).

First Submission – Contractor shall submit a report of GFM inventory within 30 days after completion of functional testing.

Test Procedure. (CDRL A002) First Submission – Contractor shall submit a draft of the Test Work Request to the Government for review and approval at least 15 working days prior to start of test program. Submittal shall include the most current revision of the test plan TP-700169 that is referenced in the Test Work Request. The Government shall provide comments on the Test Work Request within 7 working days.

Subsequent Submission –Contractor shall submit the final revision within 7 working days after receipt of comments from the Government.

Technical Report–Study/Services (Test Data Pack). (CDRL A003)

First Submission – Contractor shall submit the completed Test Work Request and Test Data Pack including a copy of dent block Rockwell Hardness, dent block and detonator marriage log, non-destructive inspection results, radiographic inspection reports, digital x-ray and n-ray images, electrical test results (including FET data sheets), TSHA plots and results, no-fire test results, performance test data sheets, current-voltage-audio vs. time scope traces and digital data (compatible with Excel), test equipment and calibration list, conditioning chamber temperature profiles and any non-conformance reports to the Government within 15 working days after the completion of functional testing. The Government shall provide comments on the submittal within 10 working days.

Subsequent Submission - Contractor shall address comments and submit final test data within 7 working days.

CDRL Summary.

Table 2: CDRL Submittals

CDRL

NUMBER

(SOW Section 1.3.4 & 4.1) Within 30 days of completion of functional testing.

(SOW paragraphs 3.2 & 4.2)

(SOW paragraphs 3.2 & 4.3)

1.1 Points of Contact. Deliverables shall be emailed to:

SOW-76Z2737-FY25

NSWC IHD Technical Representative:

Zachary Schiffman, Code E24ZS 301-744-2134 zachary.r.schiffman.civ@us.navy.mil

WAWF email notifications shall be sent to:

Chrissy Fish-DeAtley, Code E24CF 301-744-2313 christina.m.fishdeatley.civ@us.navy.mil