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DI-ENVR-80707A

Request for Use of Government-Owned Shock Test Facilities

Provides detailed item descriptive data, shock-testing requirements, and scheduling requirements to support test facility selection and orderly scheduling of Government-owned shock test facilities.

Approval DateJuly 23, 2019
AMSC NumberN10053
Preparing ActivitySH
Project NumberENVR-2019-003
OPR—
DTIC ApplicableNo
GIDEP ApplicableNo
Limitation—
Applicable Forms—
Approval Limitation—
Form Version—
DID Formatfree_text
963C CompliantYes
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
Supersedes
DI-ENVR-80707
Related
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Description & Purpose

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Application & Interrelationship

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Use & Relationship

The Request for Use of Government-Owned Shock Test Facilities provides detailed item descriptive data, shock-testing requirements, and scheduling requirements. It is used to support selection of the appropriate test facility and to ensure orderly scheduling of Government facilities.

a. This data item description (DID) contains the format, content, and intended use information for the data deliverable resulting from the work task described in 3.1.15 of MIL-DTL-901.

This request applies whenever the contractor certifies that commercial shock test facilities are not available, or upon certification that applicable acquisition documents require testing by a Government-owned facility.

b. This DID supersedes DI-ENVR-80707.

Preparation Instructions

1Reference Documents.The applicable issue of the documents cited herein, including their approval dates and dates of any applicable amendments, notices, and revisions, shall be as specified in the contract.
2Format.The request shall be in the contractor's format.
3Content.The request shall include the following information:
3.1Certification.The request shall include certification that suitable commercial facilities are not available, or certification that applicable acquisition documents require testing by a Government-owned facility.
3.2Equipment Identification.The request shall include the following identification information:
3.2.1Item
3.2.1.1Name
3.2.1.2Type
3.2.1.3Nomenclature
3.2.1.4Rating
3.2.1.5Service
3.2.1.6Military specification and technical manual numbers
3.2.2Manufacturer (name and address).
3.2.3Model number, part number, and serial number (as applicable).
3.2.4Size or capacity (if applicable).
3.2.5Plan numbers (sectional assembly and outline; revision and date).
3.2.6Approximate overall dimensions of the equipment.
3.2.7Weight (wet, dry, and total weight including test fixture, wet and dry).
3.2.8Height of center-of-gravity above base of equipment.
3.2.9Contract or purchase order number.
3.2.10Description of external and internal resilient mounts, if used.
3.2.10.1Size(s)
3.2.10.2Type(s)
3.2.10.3Location(s)
3.2.10.4Specification(s)
3.2.10.5Mount manufacturer(s)
3.2.11Major components and attached items in test (name, identification, and manufacturer).
3.3Outline Drawing.Include an outline drawing of the item to be tested.
3.4Test and Installation Requirements.The following information shall be included in the request:
3.4.1Test laboratory and address.
3.4.2Applicable shock grade.
3.4.3Equipment type.
3.4.4Equipment class.
3.4.5Shock test type.If type B tests are required because the principal unit is too large or too heavy to permit shock testing, describe how the principal unit shall be broken down into shock-testable groups of subsidiary components.
3.4.6Shock test category.
3.4.7Equipment mounting location, i.e., plane and orientation aboard ship.
3.4.8Method of mounting items for tests.Designate standard test fixtures to be used or describe the design of the required test fixture. Grade, size, material, and other specification data for hold-down bolts (and any other hold-down or locating devices) shall be included. Include requirements for torqueing of hold-down bolts.
3.4.9Method of simulating shipboard connections.
3.4.10Operating conditions of equipment to be represented during tests (energized, de-energized [or both], pressurized, rated speed, temperatures, or other operating conditions).For lightweight shock tests, state the operating condition to be represented during each of the series of blows. For medium weight shock tests, state the operating condition to be represented during group I and II blows and the operating condition or conditions to be represented during group III blows. For heavyweight shock tests, state the operating condition to be represented during each test shot. For medium weight deck simulating shock tests, state the appropriate operating condition key in accordance with MIL-DTL-901 (i.e., primary operating condition, operating condition 2, or operating condition 3).
3.4.11Shock test acceptance criteria and associated post-test functional testing and inspection requirements.Define minimum acceptable performance of grade A items during and following shock tests, such as extent of momentary malfunction, if permitted, and degree of permanent functional impairment allowed. State requirements applicable to important characteristics, such as alignment, dielectric strength, and pressure-tight integrity. Furnish supplemental grade B acceptance criteria, if applicable. Identify requirements for monitoring equipment during tests and for functional testing and inspection after tests as required to demonstrate compliance with acceptance criteria.
3.4.12Activity designated as Technical Authority(ies).
3.5Supplemental Data.The following supplemental requirements data, if such data is furnished by applicable purchase documents, shall be included in the request:
3.5.1Shock test category or limitations upon selection of shock test category.
3.5.2Requirements for Technical Authority approval of ordering data developed by the contractor for lightweight or medium weight shock tests.
3.5.3Permission or requirements to utilize the large floating shock platform or other Government-owned shock test facilities.
3.5.4Additional requirements for selection of standard test fixtures or for design of nonstandard test fixtures by the contractor, including specific criteria to simulate shipboard mounting conditions.
3.5.5Permission to shock test class III items in the rigidly mounted configuration only.
3.5.6Specific requirements for weight or design of dummy masses.
3.5.7Permission or requirements to simulate one or more of a group of identical subsidiary components or subassemblies.
3.5.8Requirements for additional heavyweight shock test shots at standoff distances greater than shot 1 standoff (defined in MIL-DTL-901).
3.5.9Specific requirements for partial simulation of operating conditions during shock tests in cases where it is not practical to fully simulate shipboard operating conditions.
3.5.10Additional limitations upon allowable loosening of fasteners.
3.5.11Special post-shock test noise and vibration criteria.
3.5.12Requirements for supplemental pre-delivery testing or examination of shock tested items.
3.5.13Requirements for disposition of shock tested items.
3.5.14Additional criteria applicable to shock test extension.
3.5.15Special requirements for marking of drawings.
3.5.16Number of articles requiring tests.
3.5.17Requirements for witnessing of lightweight or medium weight shock tests or associated post-test inspections.
3.5.18Requirements for additional distribution of high-impact shock test procedures.
3.5.19Requirements for additional distribution of shock test reports.
3.5.20Requirements for additional distribution of shock test extension requests.
3.6Scheduling Requirements.The request shall include scheduling requirements pertaining to equipment delivery, pre-test inspections, installation, inspections between tests, post-test inspections, post-test operating tests (if to be conducted at a Government facility), and shipment of equipment from the test facility.
3.7Unusual Requirements.State unusual or special precautions associated with the shock test, if any.
3.8Shock Test Instrumentation.State requirements for shock test instrumentation, if any.

References

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