13-00354_PURDESC.pdf

PDWRAFRL172 Page 1 of 6 16 February 2011

PDWRAFRL172

13 April 2012

CAGE 98752

PURCHASE DESCRIPTION

X-ray Safety Interlock Apparatus Set

1. Scope. This Purchase Description (PD) defines the minimum performance and technical requirements for a dual-purpose industrial x-ray (radiographic) safety interlock apparatus set useable for both portable (flight-line/hanger) operations and at stationary (vault) facilities for Nondestructive Inspection (NDI) use in a military maintenance environment, which may be at fixed military bases, deployed to austere forward operating locations, or naval vessels afloat.

2. Applicable Documents

2.1 General. The documents listed in this section are specified in sections 3-4 of this PD. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all requirements cited in sections 3-4 of this PD, whether or not they are listed in this paragraph.

2.2 Government documents.

2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) cited in the solicitation and supplements thereto.

2.2.1.1 AFOSHS 91-110, Air Force Occupational Safety and Health Standard – Nondestructive Inspection and Oil Analysis Programs, 1 July 1997. Available at http://www.e-publishing.af.mil/shared/media/epubs/AFOSHSTD91-110.pdf

Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any other data which may improve this document should be sent to AFRL/RXS-OL, 4750 Staff Drive, Bldg. 3220 – Door 1, Tinker AFB OK 73145-3318.

AMSC N/A FSC 6635

DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.

PDWRAFRL172 Page 2 of 6 16 February 2011

2.2.1.2 T.O. 33B-1-1, Air Force Technical Order – Nondestructive Inspection Methods.

Available at http://www.tinker.af.mil/shared/media/document/AFD-100602-036.pdf

2.2.1.3 10 CFR 20, Nuclear Regulatory Commission – Standards for Protection Against Radiation. Available at http://www.nrc.gov/reading-rm/doc-collections/cfr/part020/

2.2.1.4 21 CFR 1020, Food and Drugs – Performance standards for ionizing radiation emitting products. Available at http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=1020

2.2.1.5 29 CFR 1910.1096, Occupational Safety and Health Administration – Ionizing Radiation.

Available at http://www.osha.gov

2.3 Non-Government publications. The following document(s) form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents, which are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation and supplements thereto.

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

70 Article 500, National Electric Code, current as of contract award

(Application for copies should be addressed to NFPA, One Batterymarch Park, P.O. Box 9191, Quincy, MA 02279)

2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supercedes applicable laws and regulations unless a specific exemption has been obtained.

3. Salient Characteristics.

3.1 General. The interlock shall comply with the technical requirements listed in AFOSHS 91-110, T.O. 33B-1-1, 10 CFR 20, 21 CFR 1020, 29 CFR 1910.1096, and 70 Article 500, as of the date of the solicitation. The x-ray interlock set shall consist of a control unit, one (1) portable warning beacon, facility interface, and accessories described below. The unit shall interface with the Lorad NDT (CAGE 01378, http://www.spellmanhv.com/en/Products/Product-NDT.aspx) LPX-160 x-ray apparatus sets, part numbers 3-000-0723, 3-000-0724, and 3-000-0727, previously purchased by the government under actual NSNs 6635-01-417-1830, 6635-01-430- 2575, and 6635-01-442-6915, respectively. The unit shall be designed to prevent loss of components, which could generate foreign object damage to aircraft or engines.

3.2 Control Unit. The control unit shall use a Programmable Logic Controller (PLC) microprocessor with provisions to indicate system status and error codes. All normal user system controls shall be accessible from the front panel. All indicators shall be visible both in

PDWRAFRL172 Page 3 of 6 16 February 2011 portable (flightline/hanger) operations and stationary (vault) facilities. Disabling or bypassing of safety devices shall not be possible from the front-panel controls. In facility mode use, the control unit shall always be outside the x-ray exposure facility in close proximity to the x-ray controller. It shall not be designed to be used from inside the x-ray exposure facility.

3.2.1 The control unit shall continuously monitor the flashing/rotating lamps in a minimum of eight (8) connected beacons and interrupt the x-ray generation if lamp failure occurs. The control unit shall not initiate a pre-warn sequence unless an external audible alarm(s) is detected in either the portable beacon or inside the stationary x-ray vault. There shall be only one (1) beacon connected in portable mode, which will be placed near the tubehead. The control unit shall have integral warning lights for both “Pre-warn” and “X-ray On”.

3.2.2 The PLC hardware/software shall allow for program upgrades and/or modifications.

3.2.3 The PLC hardware/software shall automatically determine if the control unit is connected in a portable or stationary mode. The software shall automatically determine if the control unit is connected for both modes, indicate an error code, and prevent x-ray generation until one mode is disconnected.

3.2.4 The control unit shall have a test mode to operate all warning devices for 60 seconds without x-ray generation to allow a single operator to verify proper function of beacons and audible alarms. In stationary mode, the test mode shall operate without closure of vault doors to verify operation of vault beacons and audible alarms.

3.2.5 While in portable mode, the control unit shall have a pre-warn start button that will ensure the beacon emergency stop switch is closed, energize the portable beacon flashing/rotating lamp, and energize the audible alarms for 20 seconds. After the 20 second pre-warn sequence ends, the control unit shall end the audible alarms and enable a 30 second time window for x-ray generation to begin. If x-ray generation does not commence within 30 seconds, the control unit shall reset and require another pre-warn sequence before x-ray generation can begin. The portable beacon flashing/rotating lamp shall continue throughout the 30-second time window and/or until x-ray generation ceases. When x-ray generation is started, the beacon shall illuminate an integral sign with the words “X-ray On”.

3.2.6 While in stationary mode, the control unit shall ensure all door switches and emergency stop switch(es) are closed before a pre-warn sequence can begin. During the pre-warn sequence, the control unit shall energize the amber “Pre-warn” flashing/rotating lamps and the audible alarms for 20 seconds. After the 20 second pre-warn sequence ends, the control unit shall end the audible alarms and enable a 30 second time window for x-ray generation to begin while the amber pre-warn lamp remains energized. If x-ray generation does not commence within 30 seconds, the control unit shall reset, turn off all lamps, and require another pre-warn sequence before x-ray generation can begin. When x-ray generation is started, the control unit shall turn off the amber lamps and energize the red flashing/rotating “X-ray On” lamps.

PDWRAFRL172 Page 4 of 6 16 February 2011

3.2.7 The control unit shall be integrated into a transport case to protect from environmental conditions, with dimensions not to exceed 24 x 24 x 18 inches. The total weight of the control unit shall not exceed 25 pounds.

3.2.8 The control unit shall have the following electrical connections: power in, x-ray controller, a single facility interface for door and emergency stops switches, beacons, and external audible alarms, and portable beacon; each with unique, color-coded, quarter-turn connectors to prevent cable-swapping. The control unit shall not have a key switch.

3.2.9 The unit shall operate when supplied with 100-250 Volt Alternating Current – 50 or 60 Hertz (100-250 VAC – 50/60 Hz) and have an integral circuit breaker(s).

3.3 Portable Beacon. The beacon shall contain a ruggedized high-intensity red flashing light or rotating beacon, visible from all angles of approach intended to be in close proximity to the x-ray tubehead. The height of the beacon shall be between 24 and 36 inches tall, a base not to exceed 24 inches square, weight not to exceed 25 pounds, and stable in 30 mph wind. The beacon shall have a wire guard/handle protecting the beacon lens. The beacon shall have an illuminated sign with the words “X-ray On” when x-rays are being generated. The beacon shall have an audible alarm of an intensity of 80 + 5 dB which operates during the pre-warn sequence only and a red mushroom emergency push-to-stop switch, which latches in the off position. The electrical connection shall have a unique, color-coded, quarter-turn connector matched to the control unit.

3.4 Facility Interface. The facility interface shall consist of an interface panel to be located in the close proximity of the x-ray apparatus controller and the following stationary accessories:

interior and exterior warning beacons, emergency-off switch(s), redundant door switches, and external audible alarm(s). The interface housing shall be lockable to prevent unauthorized access and suitable for routing accessory wiring in conduit. The interface panel shall have a single unique, color-coded, quarter-turn cable that attaches to the interlock control unit. The interface panel shall have a “dummy” plug to secure the cable end when not connected to the interlock control unit. The cable length shall be 10 + 1 feet long.

3.5 Accessories. The interlock set shall include the following accessories:

3.5.1 Electrical power cable with unique, color-coded, quarter-turn connector 10 feet in length.

3.5.2 Portable beacon cable with unique, color-coded, quarter-turn connector 100 feet in length.

3.5.3 Interlock to x-ray controller cable with unique, color-coded, quarter-turn connector 10 feet in length.

3.5.4 Two (2) spare lamps for each lamp type.

3.5.5 Weather/impact-resistant airline transport case(s), with handles and wheels, for above accessories.

3.5.6 One (1) amber “Pre-warn” beacon for inside the x-ray exposure facility.

PDWRAFRL172 Page 5 of 6 16 February 2011

3.5.7 One (1) red “X-ray On” beacon for inside the x-ray exposure facility.

3.5.8 One (1) audible alarm of an intensity of 80 + 5 dB for inside the x-ray exposure facility.

3.5.9 One (1) red mushroom emergency push-to-stop switch, which latches in the off position.

3.5.10 Two (2) weather-resistant red “X-ray On” beacons suitable for outdoor installation.

3.5.11 Two (2) door switches (for both personnel and equipment doors), such that door opening results in physical disconnection of the interlock circuit and such disconnection shall not be dependent upon any moving part other than the door.

3.6 Operating Conditions. The unit shall be operable in the following environmental conditions:

3.6.1 Operating Temperatures. The unit and accessories shall perform to the specification in this PD throughout temperatures from 15 to 120 degrees Fahrenheit at 95% relative humidity.

3.6.2 Storage Temperatures. The unit and accessories shall perform to the specifications in this PD following extended exposure to temperatures from 0 to 140 degrees Fahrenheit at 95% relative humidity.

3.6.3 Altitude. The unit and accessories shall perform to the specifications in this PD at altitudes from sea level to 7500 feet above sea level, and following return from a pressure altitude of 15,000 feet above sea level.

3.7 Configuration Control. Any changes to the interlock apparatus set during the contract period shall be coordinated with the Contracting Officer and cognizant Engineer.

3.8 Documentation. One paper copy of the installation, operation, and maintenance instructions, including calibration procedures, adjustments, and optional accessories & sources, as applicable, shall be shipped with each item. Two paper and two electronic copies of the installation, operation and maintenance instructions, including calibration procedures, adjustments, and optional accessories & sources, as applicable, illustrated parts breakdown, diagnostics, and servicing instructions, and PLC program with programming notes and functional flow block diagram shall be sent to the Contracting Officer for delivery to the Equipment Specialist and cognizant Engineer. An officially licensed copy of the Windows-based Programmable Logic Controller-to-Personal Computer interface executable software on CD-ROM, computer to PLC interface cable, and interlock PLC software free of any write/modification protection on CD- ROM shall be sent to the Contracting Officer for delivery to cognizant Engineer. The documentation shall be releasable for third-party repairs after expiration of the contract.

3.9 Warranty. A one-year minimum warranty, to include parts, labor, and two-way shipping, shall be included against manufacturing defects.

PDWRAFRL172 Page 6 of 6 16 February 2011

3.10 Post-Award Conference. A post-award conference shall be held at the manufacturer’s location after successful completion of first article testing to discuss potential customization of software or kitting changes. A minimum of fourteen (14) days advance notice shall be provided.

Any changes affecting cost require approval by the Contracting Officer.

4. Regulatory Requirements. The contractor is encouraged to use recovered materials in accordance with Public Law 94-580 to the maximum extent practicable.

4.1 Metric Products. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured using inch-pounds unit, provided they fall within specified tolerances using conversion tables contained in the latest revision of Federal Standard No. 376, and all other requirements of this Purchase Description are met.

5. PRODUCT CONFORMANCE PROVISIONS.

5.1 Product Conformance. The products provided shall meet the salient characteristics of this Product Description, conform to the producer’s own drawings, specifications, standards, and quality assurance practices, and be the same product offered for sale in the commercial marketplace. The government reserves the right to require proof of such conformance.

5.2 Market Acceptability. All of the following market acceptance criteria are necessary to document the quality, reliability, and supportability of the product to be provided under this specification. (1) The company producing the item must have been producing x-ray safety interlocks for at least the past three years. (2) The company must have sold the basic commercial unit in the industrial market for a minimum of one year. (3) The company must have sold at least ten (10) units similar to the units being offered, with no major defects within the last three (3) years. A major defect is a defect which affects the performance of the unit and requires an engineering change to the unit’s original configuration in order for the unit to perform the requirements of this PD.

6. Preservation, Packaging, Packing, Labeling, and Marking. Preservation, packaging, packing, labeling, and marking shall be specified in the contract or order.

7. National Stock Number.

NSN Part Number CAGEC

6635-01-508-1519RN PDWRAFRL172 98752