SOW 2.1 Radiological Detection System Base Unit to DT-304.PDR Interface Technical Specification Rev A.pdf

Orbis, Inc.

RADIAC ISEA

Document No. Revision

RE-TS-0002 A

Radiological Detection System Base Unit to DT-304/PDR Interface Technical Specification

Preparer: Tyler Artz

Name Signature & Date

Reviewer: Jim Reynolds

Name Signature & Date

RE-TS-0002 Page 2 of 19

Revision Log

Rev.

Date

(mm/dd/yy) Description of Changes

A 6/24/21 Initial release.

RE-TS-0002 Page 3 of 19

Table of Contents

1 SCOPE

1.1 PURPOSE

1.2 INTRODUCTION

2 APPLICABLE DOCUMENTS

3 REQUIREMENTS

3.1 WEIGHT & DIMENSIONS

3.2 POWER

3.3 HUMAN FACTORS

3.4 SYSTEM DISPLAY

3.5 DETECTION CAPABILITIES

3.6 CALIBRATION

3.7 ENVIRONMENTAL CONDITIONS

3.8 SAFETY

3.9 WORKMANSHIP, CORROSION CONTROL, AND FINISH

3.10 NAMEPLATES AND PRODUCT MARKING

3.11 RADIOACTIVE SOURCES

3.12 RELIABILITY

3.13 MAINTAINABILITY

4 VERIFICATION

4.1 WEIGHT & DIMENSIONS

4.2 POWER

4.3 HUMAN FACTORS

4.4 SYSTEM DISPLAY

4.5 DETECTION CAPABILITIES

4.6 CALIBRATION

4.7 ENVIRONMENTAL CONDITIONS

4.8 SAFETY

4.9 WORKMANSHIP, CORROSION CONTROL, AND FINISH

4.10 NAMEPLATSES AND PRODUCT MARKING

4.11 RADIOACTIVE SOURCES

4.12 RELIABILITY

4.13 MAINTAINABILITY

5 PACKAGING

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1 SCOPE

1.1 PURPOSE

This specification defines the technical requirements and test methodologies for the

Radiological Detection System (RDS) Base Unit to DT-304/PDR Beta Frisker Probe Interface, herein referred to as “the interface.” The purpose of this interface is to enable use of the DT-304/PDR Beta Frisker Probe with the RDS Base Unit as an alternative to the RDS Small-Area Beta/Gamma (SABG) Contamination Probe.

1.2 INTRODUCTION

The Navy currently utilizes the shielded DT-304/PDR, connected to an IM-265/PDQ

RADIAC Meter via a DT-685/PDQ Beta Probe Interface or connected directly to an IM- 271/PD Frisker Station, to frisk for beta contamination. For surveys performed in areas with lower background levels, the Navy uses the unshielded DT-643( )/PDR. It is necessary to connect this probe to an IM-265/PDQ or IM-271/PD in the same fashion as the DT-304/PDR. The Radiological Detection System (RDS) Base Unit will replace the IM-265/PDQ and IM-271/PD for all applicable Navy end uses. There is not currently a direct equivalent to the DT-304/PDR offered within the RDS suite. The Small-Area Beta/Gamma (SABG) Contamination Probe, which is the primary solution provided by the RDS for surveying for beta contamination, does not normally come with a shield.

This makes the SABG more akin to the unshielded DT-643( )/PDR. The NAVSEA RADIAC Program will purchase the SABG Probe to replace the DT-643( )/PDR as both probes are unshielded and use the same pancake GM tube. An optional aluminum-clad lead shield is available for purchase with the SABG that would make the probe equivalent to the DT-304/PDR. However, the NAVSEA RADIAC Program has determined that it is significantly more cost-effective to design and build an interface between the RDS Base Unit and the DT-304/PDR. The interface will utilize existing SABG technology and firmware to the maximum extent possible, but meet a new form factor. This interface will also allow the DT-643( )/PDR to be compatible with the RDS Base Unit as it uses the same high voltage circuitry and pancake GM tube as the DT-

304/PDR.

2 APPLICABLE DOCUMENTS

ANSI/ASQ Z1.4-2003; Sampling Procedures and Tables for Inspection Attributes (2003)

ANSI/ESD S20.20-2007; Protection of Electrical and Electronic Parts, Assemblies and

Equipment (Excluding Electrically Initiated Explosive Devices) (1 Mar 2007)

ANSI N42.17A-2003; American National Standard for Performance Specifications for Health

Physics Instrumentation – Portable Instrumentation for Use in Normal Environmental Conditions (29 SEP 2003)

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ANSI N42.17C-1989; American National Standard for Performance Specifications for Health Physics Instrumentation – Portable Instrumentation for Use in Extreme Environmental Conditions (7 SEP 1989)

MARSSIM; Multi-Agency Radiation Survey and Site Investigation Manual (1

AUG 2000)

MIL-HDBK-454B; General Guidelines for Electronic Equipment (15 APR 2007)

MIL-HDBK-781A; Reliability Test Methods, Plans, and Environments for Engineering, Development Qualification, and Production (1 APR 1996)

MIL-STD-108E; Definitions of and Basic Requirements for Electric and Electronic

Equipment (4 AUG 1966)

MIL-STD-130N; Identification Marking of U.S. Military Property (17 DEC 2007)

MIL-STD-461G; Requirements for the Control of Electromagnetic Interference

Characteristics of Subsystems and Equipment (11 DEC 2015)

MIL-STD-464D; Electromagnetic Environmental Effects Requirements for Systems (24

DEC 2020)

MIL-STD-810H; Environmental Engineering Considerations and Laboratory Tests (19

JAN 2019)

3 REQUIREMENTS

The interface shall conform to the requirements listed in this section and shall be verified in accordance with Section 4 of this document.

3.1 WEIGHT & DIMENSIONS

3.1.1 The interface shall weigh no more than 1.0 lb.

3.1.2 The width of the interface shall not exceed the width of the DT-304/PDR probe block

(1.5 inches).

3.2 POWER

3.2.1 The interface shall be powered by the RDS Base Unit and provide high voltage (900V ±

50V) to the DT-304/PDR.

3.2.2 Any external cables carrying high voltage shall be of the shortest length practical and shall not exceed 12.0 inches in length.

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3.2.3 With the interface and DT-304/PDR connected, the RDS Base Unit shall provide continuous operation for at least 8 hours.

3.2.4 The interface shall connect to the RDS Base Unit via the RDS Common Probe Cable.

The RDS Common Probe Cable may be molded to the interface.

3.3 HUMAN FACTORS

3.3.1 A method for restraining cables shall be available to prevent snag hazards during normal use.

3.3.2 Users shall be able to perform all functional operations, including any maintenance, while wearing Occupational Safety and Health Administration (OSHA) Level A or Mission Oriented Protective Posture (MOPP) Level IV Personal Protective Equipment.

3.3.3 Mechanically connecting an interface to an RDS Base Unit or disconnecting an interface from an RDS Base Unit shall be accomplishable within 10 seconds and shall involve no more than two connectors.

3.4 SYSTEM DISPLAY

3.4.1 With the interface and DT-304/PDR connected, the RDS Base Unit shall recognize this combination as an RDS SABG Probe and display the SABG Probe icon in the upper-right portion of the Liquid-Crystal Display (LCD).

3.5 DETECTION CAPABILITIES

3.5.1 With the interface and DT-304/PDR connected, the RDS Base Unit shall be capable of displaying readings of count rate (cpm, cps) and count rate per unit area (cpm/cm2, cps/cm2).

3.5.2 The response of the detection capability shall be linear ± 20% over the entire display range for beta radiation.

3.5.3 The ratio of the mean indicated value to the conventionally true value shall fall within the range of 0.80 to 1.20 across the operating temperature range (see 3.7.2) and across the operating humidity range (see 3.7.5) per ANSI N42.17C 6.1.1.

3.5.4 Any RDS Base Unit reading taken when using the interface connected to the DT-

304/PDR shall be reproducible within ± 20% when the DT-304/PDR is placed in the identical radiation field under identical operational and environmental conditions.

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3.5.5 The DT-304/PDR, when connected to the RDS Base Unit via the interface and while set to scaler mode, shall achieve a Minimum Detectable Concentration (MDC) of 100 Bq/cm2 for 14C at a static source-to-probe separation of 3 mm from a uniformly contaminated surface within 30 seconds.

3.5.6 The DT-304/PDR, when connected to the RDS Base Unit via the interface, shall achieve an MDC of 1 Bq/cm2 for sealed 60Co, at a source-to-probe separation of 3 mm, from a uniformly contaminated surface while moving at a scan speed of 10 cm/s.

3.5.7 The DT-304/PDR, when connected to the RDS Base Unit via the interface, shall meet or exceed the 4π efficiencies identified in Table 3-1.

Table 3-1. Beta Efficiencies (with Protective Grid)

Isotope 4π Efficiency* 137Cs 22% 60Co 16%

90Sr, 90Y 32% 99Tc 15% 14C 6%

*Efficiencies listed as percentage of 4π emission rate, from a 2-inch diameter circular area of a 100 cm2 square source for 137Cs and 60Co sources. Efficiencies listed as a percentage of 4π emission rate, from a 1.75-inch diameter source for other isotopes.

Open area of the DT-304/PDR etched stainless steel protective grid is 79%.

3.5.8 The DT-304/PDR beta energy range for detection while connected to the RDS Base Unit via the interface shall encompass at least 100 keV through 5 MeV.

3.5.9 The DT-304/PDR, when connected to the RDS Base Unit via the interface, shall produce a display range encompassing at least 1.5 million cpm.

3.5.10 Background shall not contribute to a change in response (see 3.5.7) by more than 10%.

3.5.11 The background level, with the DT-304/PDR connected to the RDS Base Unit via the interface, shall be < 60 cpm in a field of < 0.25 µSv/hr H*(10) from 137Cs (662 keV).

3.5.12 While in normal operation, the DT-304/PDR, connected to the RDS Base Unit via the interface, shall be capable of responding to a step function change in field intensity to within ± 10% of the final value as follows, where x is the displayed count rate:

a. 0 < x ≤ 100 cpm Response Time ≤ 30 sec

b. 100 < x ≤ 1000 cpm Response Time ≤ 20 sec

c. 1000 < x ≤ 10000 cpm Response Time ≤ 10 sec

d. 10000 < x ≤ 100000 cpm Response Time ≤ 5 sec

e. x > 100000 cpm Response Time ≤ 2 sec

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3.6 CALIBRATION

3.6.1 The interface, while attached to the DT-304/PDR and the RDS Base Unit, shall be capable of being calibrated/verified with a National Institute of Standards and Technology (NIST) traceable 99Tc calibration standard.

3.6.2 All detection capabilities shall maintain their specified radiation detection performance, under standard conditions of use, for at least 36 months without the need for recalibration.

3.7 ENVIRONMENTAL CONDITIONS

3.7.1 Temperature – Storage and Transportation. The interface shall operate after exposure to temperatures of -50°C to 60°C.

3.7.2 Temperature – Operating. The interface shall operate within the temperature range of -

30°C to 50°C.

3.7.3 Temperature Shock. The interface shall operate during and after exposure to temperature shock (i.e. a change rate in temperature greater than or equal to 10°C (18°F) per minute).

3.7.4 Solar Radiation. The interface shall operate during and after exposure to solar radiation

(i.e. electromagnetic radiation emitted by the sun).

3.7.5 Humidity. The interface shall operate within the relative humidity range of 3-100%.

3.7.6 Rain. The interface shall operate during and after exposure to rain.

3.7.7 Blowing Sand. The interface shall operate during and after exposure to blowing sand.

3.7.8 Blowing Dust. The interface shall operate during and after exposure to blowing dust.

3.7.9 Salt Fog. The interface shall operate and not be damaged as defined in MIL-STD-810H, Method 509.7, Para 2.1.1 after exposure to salt fog.

3.7.10 Fungus. The interface shall not support fungal growth.

3.7.11 Altitude and External Pressure – Storage and Transportation. The interface shall operate after being subjected to pressures associated with 0 – 15,240 m altitudes above sea level and external pressure ranges of 177 Pa – 11.1 kPa.

3.7.12 Altitude and External Pressure – Operating. The interface shall operate in pressures associated with 0 – 4,572 m altitudes above sea level and external pressure ranges of

131.5 Pa – 30.7 kPa.

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3.7.13 Watertightness. The interface shall be watertight.

3.7.14 Shock – Storage and Transportation Transit Drop. The interface shall operate after being subjected to shock profiles experienced during air, sea, and land transportation.

3.7.15 Shock – Bench Handling. The interface shall operate after being subjected to shock encountered during bench servicing, while outside of a carrying case.

3.7.16 Vibration – Loose Cargo Transportation. The interface shall operate after being subjected to loose cargo vibration during air, sea, and land transportation.

3.7.17 Vibration – Secured Cargo Transportation. The interface shall operate after being subjected to secured cargo vibration encountered during air, sea, and land transportation.

3.7.18 Electromagnetic Interference (EMI). The interface shall meet all of the following applicable and limited EMI requirements specified in MIL-STD-461G, Table V for Surface Ships, Submarines, Navy Aircraft, and Navy Ground: CE101, CE102, CS101, CS114, CS115, CS116, CS118, RE101, RE102, RS103, and RS105.

3.7.19 Electrostatic Charge Control. The interface shall meet the electrostatic charge control requirements as specified in MIL-STD-464D, Para 5.8.4.

3.7.20 Electromagnetic Radiation (EMR) Hazards. The interface design shall protect personnel, fuels, and ordnance from hazardous effects of EMR.

3.7.21 Explosive Atmosphere. The interface shall be capable of operating in fuel-air explosive atmospheres without causing ignition.

3.7.22 Interferents. The interface shall operate while in the presence of interferents (i.e. smoke, petroleum oil, and lubricants).

3.7.23 Chemical, Biological, Radiological Contamination Survivability (CBRCS) – 1st Item.

The interface shall withstand the material-damaging effects of CBR contaminants and standard non-corrosive decontaminants without losing the ability to accomplish the assigned mission.

3.7.24 CBRCS – 2nd Item. The interface shall be capable of resuming operations in the event of becoming contaminated by discrete exposure to vapor, liquid, or solid CBR material such as small spills.

3.7.25 CBRCS – 3rd Item. The interface shall be capable of being decontaminated using standard non-corrosive decontaminants (limited to hot soapy water and M295 decontamination kit) and procedures to reduce hazard to personnel operating and maintaining the equipment.

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3.7.26 CBRCS – 4th Item. The interface shall be hardened to ensure it retains operational capability within a 30-day period with five exposures to CBR contaminants, non-corrosive decontaminants (limited to hot soapy water and M295 decontamination kit) and standard decontamination procedures.

3.7.27 CBRCS – 5th Item. External markings shall remain readable after five exposures to CBR contaminants, non-corrosive decontaminants (limited to hot soapy water and M295 decontamination kit) and standard decontamination procedures.

3.8 SAFETY

3.8.1 The interface and any ancillary equipment shall provide a design that is safe to operate, store, and maintain in its intended environment throughout its life cycle.

3.8.2 The interface shall protect personnel from inadvertent contact with voltages capable of producing shock hazards in accordance with MIL-HDBK-454B Paragraph 4.5.

3.8.3 The interface shall control and dissipate the build-up of electrostatic discharges to protect personnel from shock hazards and prevent performance degradation or damage to electronics in accordance with ANSI/ESD S20.20.

3.8.4 The interface shall not pose an electrical or explosive hazard when exposed to or submerged in water.

3.8.5 The interface shall not contain or produce hazardous materials (requiring special handling of classifying it as hazardous for storage or transportation).

3.8.6 Disposal of uncontaminated components shall not produce hazardous waste. Disposal of any components during any stage of the life cycle shall not result in hazards causing risk of injury or death to humans or other species.

3.9 WORKMANSHIP, CORROSION CONTROL, AND FINISH

3.9.1 The interface and any ancillary equipment shall be free of rust, discoloration, tool marks, or any other damage or defect that could make the component unsatisfactory for the purpose intended.

3.9.2 The interface and any ancillary equipment shall have a finish or coating that is free of foreign material such as dirt, grease, and oil.

3.9.3 The interface and any ancillary equipment shall be free of burrs and sharp edges.

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3.10 NAMEPLATES AND PRODUCT MARKING

3.10.1 The interface shall be appropriately identified with separate, unique permanent serial numbers and lot numbers. Where the reliable performance of components may be affected by aging, a means of identifying the serial number and date (at a minimum, the year) of such components shall be given.

3.10.2 The interface shall be marked/labeled in accordance with MIL-STD-130N.

3.11 RADIOACTIVE SOURCES

3.11.1 The interface shall not contain an embedded radioactive source.

3.12 RELIABILITY

3.12.1 The interface, when connected to the RDS Base Unit and DT-304/PDR, shall provide a

Mean Time Between Operational Mode Failure (MTBOMF), including software and hardware failures, of at least 172 hours.

3.13 MAINTAINABILITY

3.13.1 The Mean Corrective Maintenance Time (MCMT) of the interface shall not exceed 60 minutes for any field-level maintenance.

3.13.2 Components internal to the interface shall be accessible for depot-level repair.

4 VERIFICATION

This section summarizes all inspections and tests to be performed to determine if the vendor-developed products offered for acceptance conform to all requirements in Section 3 of this specification.

4.1 WEIGHT & DIMENSIONS

4.1.1 Weigh the interface to verify its weight does not exceed 1.0 lb.

4.1.2 Measure the width of the interface to verify it does not exceed 1.5 inches.

4.2 POWER

4.2.1 Operate the system to verify that the RDS Base Unit powers the interface and the interface provides high voltage (900V ± 50V) to the DT-304/PDR. Verify by test that the interface maintains high voltage provided to the DT-304/PDR at 900V ± 50V.

4.2.2 Inspect the system to verify that any high voltage cable runs are 12.0 inches long or less.

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4.2.3 Verify by test that the battery life of the RDS Base Unit with the interface and DT- 304/PDR connected is at least 8 hours. Test the battery life by energizing systems with a fresh set of batteries and operating until 100% depletion of battery power. Select sample size in accordance with ANSI/ASQ Z1.4. Use multiple sampling plan for normal inspection with an acceptance quality limit of 1.0.

4.2.4 Verify by observation that the interface connects to the RDS Base Unit via an RDS

Common Probe Cable.

4.3 HUMAN FACTORS

4.3.1 Inspect the system to verify that a method for restraining cables is available.

4.3.2 Verify by demonstration that a user is able to perform all functional operations, including any maintenance, while wearing Occupational Safety and Health Administration (OSHA) Level A or Mission Oriented Protective Posture (MOPP) Level IV Personal Protective Equipment.

4.3.3 Verify by observation that mechanically connecting an interface to an RDS Base Unit or disconnecting an interface from an RDS Base Unit is accomplishable within 10 seconds and involves no more than two connectors.

4.4 SYSTEM DISPLAY

4.4.1 Verify by observation that the RDS Base Unit displays the SABG Probe in the upper-right portion of the LCD when the DT-304/PDR is connected via the interface.

4.5 DETECTION CAPABILITIES

4.5.1 Verify by observation that the RDS Base Unit LCD displays readings of count rate (cpm, cps) and count rate per unit area (cpm/cm2, cps/cm2) when the interface and DT-304/PDR are connected.

4.5.2 Verify by test that the response of the detection capability is linear ± 20% over the entire display range. The measured value shall be compared to the known source activity at standard test conditions (per ANSI N42.17A Table I). The test shall include three (3) different source activities for beta radiation, approximately low (99Tc), medium (90S/90Y), and high (106Ru/106Rh). 14C shall not be used as a test source for verification of this requirement. Other test sources may be agreed upon to use for verification of this requirement.

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4.5.3 Verify by test that the ratio of the mean indicated value to the conventionally true value falls within the range of 0.80 to 1.20 across the operating temperature range (see 3.7.2) and across operating humidity range (see 3.7.5) per ANSI 42.17C 6.1.1. Test at three (3) different temperatures across the entire operational range (-30 to -20°C, 22 to 25°C, and 40 to 50°C), and three (3) different relative humidity values across the entire operational range (3 to 5%, 45 to 55%, and 95 to 100%). Mid-energy range sources (90S/90Y or other agreed upon sources) and mid-activity sources shall be used. The conventionally true value is the measured value at standard conditions (i.e. 20°C to 24°C with < 65% relative humidity).

4.5.4 Verify by test that any RDS Base Unit reading taken when using the interface connected to the DT-304/PDR is reproducible within ± 20% when the DT-304/PDR is placed in the identical radiation field under identical operational an environmental conditions. Ten

(10) readings shall be taken at normal operating conditions (20°C to 24°C with < 65% relative humidity) and all readings must be within ± 20% of the mean reading. The same base unit and interface/probe combination shall be used for each test.

4.5.5 Verify by test and analysis that the DT-304/PDR, when connected to the RDS Base Unit via the interface and while set to scaler mode, achieves a MDC of 100 Bq/cm2 for 14C at a static source-to-probe separation of 3 mm from a uniformly contaminated surface within 30 seconds. MDC shall be calculated per the MARSSIM Section 6.7, using a background count time of five (5) minutes and a 95% confidence level.

4.5.6 Verify by test and analysis that the DT-304/PDR, when connected to the RDS Base Unit via the interface, achieves a MDC of 1 Bq/cm2 for sealed 60Co, at a source-to-probe separation of 3 mm, from a uniformly contaminated surface while moving at a scan speed of 10 cm/s. MDC shall be calculated per the MARSSIM Section 6.7, using a background count time of five (5) minutes and a 95% confidence level.

4.5.7 Verify by test or analysis that the DT-304/PDR, when connected to the RDS Base Unit via the interface, meets or exceeds the 4π efficiencies identified in Table 3-1. Data from previous testing may be used.

4.5.8 Verify by test that the DT-304/PDR beta energy range for detection while connected to the RDS Base Unit via the interface encompasses at least 100 keV through 5 MeV. This test shall include a minimum of three (3) different beta energies over the entire beta range (e.g. 14C, 99Tc, 90Sr/90Y, and 106Ru/106Rh or other agreed upon sources).

4.5.9 Verify by demonstration and using appropriate beta sources (e.g. 14C, 99Tc, 90Sr/90Y, and

106Ru/106Rh or other agreed upon sources) that the DT-304/PDR, when connected to the RDS Base Unit via the interface, produces a display range encompassing at least 1.5 million cpm.

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4.5.10 Verify by test that gamma background does not contribute to a change in overall response by more than 10%. Test by taking background measurements during the testing identified in 4.5.7 and determining the contribution of background to overall response.

4.5.11 Verify by test that the background level, with the DT-304/PDR connected to the RDS

Base Unit via the interface, is < 60 cpm in a field of < 0.25 µSv/hr H*(10) from 137Cs (662 keV).

4.5.12 Verify by test that while in normal operation, the DT-304/PDR, connected to the RDS

Base Unit via the interface, is capable of responding to the step function change in field intensity presented in 3.5.12 to within 10% of the final value. Test at least one (1) count rate in each range.

4.6 CALIBRATION

4.6.1 Verify by test that the interface, while attached to the DT-304/PDR and the RDS Base

Unit, is capable of being calibrated/verified with a NIST-traceable 99Tc calibration standard by performing a calibration/verification.

4.6.2 Verify by analysis that any detection capabilities maintain their specified radiation detection performance, under standard conditions of use, for at least 36 months without the need for recalibration.

4.7 ENVIRONMENTAL CONDITIONS

4.7.1 Verify by test that the interface operates after exposure to temperature of -50°C to 60°C.

Conduct high temperature storage test in accordance with MIL-STD-810H, Method 501.7, Procedure I. Store the system at 60°C for 168 hours. Conduct low temperature storage test in accordance with MIL-STD-810G, Method 502.7, Procedure I. Store the system at -50°C for at least 4 hours.

4.7.2 Verify by test that the interface operates within the temperature range of -30°C to 50°C.

Conduct high temperature operation test in accordance with MIL-STD-810H, Method 501.7, Procedure II. Operate the system at 50°C for 72 hours. Conduct low temperature operation test in accordance with MIL-STD-810G, Method 502.7, Procedure II. Operate the system at -30°C for at least 4 hours.

4.7.3 Verify by test that the interface operates during and after exposure to temperature shock.

Test in accordance with MIL-STD-810H, Method 503.7, Procedure I-D. For the man-carried arrangement, cycle between -30°C and 50°C. For the transit arrangement, cycle between -50°C and 60°C. This test shall be conducted in sequence with 4.7.5 and 4.7.17.

The same test samples shall be used for 4.7.3, 4.7.5, and 4.7.17 verification activities.

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4.7.4 Verify by test that the interface operates during and after exposure to solar radiation.

Test in accordance with MIL-STD-810H, Method 505.7, Procedure I. The system shall be exposed to solar radiation associated with climatic conditions Cyclic A1, worldwide deployment. The test shall consist of three (3) 24-hour cycles.

4.7.5 Verify by test that the interface operates within the relative humidity range of 3-100%.

Test in accordance with MIL-STD-810H, Method 507.6, Procedure I, except the maximum temperature is 50°C. Expose the system to ten (10) 24-hour temperature-humidity cycles. This test shall be conducted in sequence with 4.7.3 and 4.7.17. The same test samples shall be tested during 4.7.5, 4.7.3, and 4.7.17 verification activities.

4.7.6 Verify by test that the interface operates during and after exposure to rain. Test in accordance with MIL-STD-810H, Method 506.6, Procedure I. The system shall be exposed to rain for 30 minutes per face at a rain rate of 1.7 mm/min and a wind speed of 18 m/s at 20°C.

4.7.7 Verify by test that the interface operates during and after exposure to blowing sand. Test in accordance with MIL-STD-810H, Method 510.7, Procedure II. The system shall be exposed to blowing sand with a particle size of 2.2 g/m3 and a wind speed of 18 m/s with wind gusts up to 29 m/s for 90 min per face, at 50°C.

4.7.8 Verify by test that the interface operates during and after exposure to blowing dust. Test in accordance with MIL-STD-810H, Method 510.7, Procedure I. The system shall be exposed to blowing dust with a particle size of 10.6 g/m3 at a wind speed of 8.9 ± 1.3 m/s for six (6) hours at ambient temperature per face and for six (6) hours at 50°C per face.

4.7.9 Verify by test that the interface operates as is not damaged after exposure to salt fog.

Test in accordance with MIL-STD-810H, Method 509.7, Para 2.1.1. The system shall be exposed to salt fog having a salt solution of 5 ± 1% at 35 ± 2°C with a fallout of 1 to 3 ml/80cm2/hr. The cycle shall be a 24-hr period of salt fog, 24-hr period of drying, two

(2) cycles for a total of 96 hours. An alternate exposure shall be one cycle of 48-hr salt fog, 48-hr drying.

4.7.10 Verify by analysis that the interface does not support fungal growth. Analyze in accordance with MIL-STD-810H, Method 508.8 and Table 4-1.

Table 4-1. Applicable Fungi.

Test Fungi Aspergillus niger QM 386 ATCC 9642 Aspergillus flavus QM 380 ATCC 9643

Aspergillus versicolor QH 432 ATCC 11730 Penicillium funiculosum QH 474 ATCC 11797 Chaetomium globosum QH 459 ATCC 6205

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4.7.11 Verify by test that interface operates after being subjected to pressures associated with 0

– 15,230 m altitudes above sea level and external pressure ranges of 177 Pa – 11.1 kPa.

Test in accordance with MIL-STD-810H, Method 500.6, Procedure I. The interface shall be exposed to pressures associated with 0 – 15,240 m (external pressures of 177 Pa – 11.1 kPa) altitudes above sea level. The maximum altitude shall be held for one (1) hour. The altitude changes shall not exceed 10 m/s.

4.7.12 Verify by test that the interface operates in pressures associated with 0 – 4,572 m altitudes above sea level and external pressure ranges of 131.5 Pa – 30.7 kPa. Test in accordance with MIL-STD-810H, Method 500.5, Procedure II. The system shall be exposed to pressures associated with 0 – 4,572 m (external pressures of 131.5 Pa – 30.7 kPa) altitudes above sea level. The maximum altitude shall be held for one (1) hour. The altitude change shall not exceed 10 m/s.

4.7.13 Verify by test that the interface is watertight. Test in accordance with MIL-STD-108E.

4.7.14 Verify by test that the interface operates after being subjected to shock profiles experienced during air, sea, and land transportation. Test in accordance with MIL-STD- 810H, Method 516.8, Procedure IV. The system shall be tested using a drop height of 122 cm.

4.7.15 Verify by test that the interface operates after being subjected to shock encountered during bench servicing, while outside of a carrying case. Test in accordance with MIL- STD-810H, Method 516.8, Procedure VI.

4.7.16 Verify by test that the interface operates after being subjected to loose cargo vibration during air, sea, and land transportation. Test in accordance with MIL-STD-810H, Method 514.8, Table 514.6-1, Transportation as loose cargo, Annex C, Test II.

4.7.17 Verify by test that the interface operates after being subjected to secured cargo vibration encountered during air, sea, and land transportation. Test in accordance with MIL-STD- 810H, Method 514.8, Table 514.6-1, Transportation as secured cargo, Annex C, Test I.

This test shall be conducted in sequence with 4.6.3 and 4.6.5. The same test samples shall be used for 4.7.3, 4.7.5, and 4.7.17 verification activities.

4.7.18 Verify by test that the interface meets all of the following applicable and limited EMI requirements specified in MIL-STD-461G, Table V for Surface Ships, Submarines, Navy Aircraft, and Navy Ground: CE101, CE102, CS101, CS114, CS115, CS116, CS118, RE101, RE102, RS103, and RS105.

4.7.19 Verify the interface meets the electrostatic charge control requirements specified in MIL-

STD-464D, Paragraph 5.8.4.

4.7.20 Verify the interface design protects personnel, fuels, and ordnance from the hazardous effects of EMR.

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4.7.21 Verify the interface is capable of operating in fuel-air explosive atmospheres without causing ignition. Test in accordance with MIL-STD-810H, Method 511.7, Procedure I.

4.7.22 Verify the interface operates in the presence of interferents (i.e. smoke, petroleum oil, and lubricants). Analyze in accordance with MIL-STD-810H, Method 504.3, Procedure II-small systems and Table 4-2.

Table 4-2. Applicable Interferents.

Interferent Application Source

Diesel Exhaust Vehicles/Ship Normal Operation Gasoline Exhaust Vehicles/Ship Vehicles/Ships Cigarette Smoke Ground/Fixed Site/Ship Personnel

Doused Fire Ground/Fixed

Site/Ship/Vehicle Service/Replenish

Lubricant, Small Arms Ground/Fixed Site/Ship Service/Replenish JP4/JP8 Aviation/Ship Aviation/Ships

XM81 Smoke Screen Grenade Ground/Fixed Site/Vehicle Combat Operations Fog Oil Smoke Ground/Fixed Site/Vehicle Combat Operations Green Smoke Ground/Fixed Site/Vehicle Combat Operations Red Smoke Ground/Fixed Site/Vehicle Combat Operations

Violet Smoke Ground/Fixed Site/Vehicle Combat Operations Yellow Smoke Ground/Fixed Site/Vehicle Combat Operations

M18 Marking Grenade Ground/Fixed Site/Vehicle Combat Operations

4.7.23 Verify by analysis that the interface withstands the material-damaging effects of CBR contaminants and standard non-corrosive decontaminants without losing the ability to accomplish the assigned mission.

4.7.24 Verify by analysis that the interface is capable of resuming operations in the event of being contaminated by discrete exposure to vapor, liquid, or solid CBR material such as small spills.

4.7.25 Verify by analysis that the interface is capable of being decontaminated using standard non-corrosive decontaminants (limited to hot soapy water and M295 decontamination kit) and procedures to reduce hazard to personnel operating and maintaining the equipment.

4.7.26 Verify by analysis that the interface is hardened to ensure it retains operational capability within a 30-day period with five exposures to CBR contaminants, non-corrosive decontaminants (limited to hot soapy water and M295 decontamination kit) and standard decontamination procedures.

4.7.27 Verify by analysis that external markings remain readable after five exposures to CBR contaminants, non-corrosive decontaminants (limited to hot soapy water and M295 decontamination kit) and standard decontamination procedures.

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4.8 SAFETY

4.8.1 Verify by analysis that the interface provides a design that is safe to operate, store, and maintain in its intended environment throughout its life cycle.

4.8.2 Verify by analysis that the interface protects personnel from inadvertent contact with voltages capable of producing shock hazards in accordance with MIL-HDBK-454B, Paragraph 4.5.

4.8.3 Verify by analysis that the interface controls and dissipates the build-up of electrostatic discharges to protect personnel from shock hazards and prevent performance degradation or damage to electronics in accordance with ANSI/ESD S20.20.

4.8.4 Verify by analysis that the interface does not pose an electrical or explosive hazard when exposed to or submerged in water.

4.8.5 Verify by analysis that the interface does not contain or produce hazardous materials

(requiring special handling of classifying it as hazardous for storage or transportation).

4.8.6 Verify by analysis that the disposal of uncontaminated interface components do not produce hazardous waste. Verify by analysis that disposal of any interface components during any stage of the life cycle does not result in hazards causing risk of injury or death to humans or other species.

4.9 WORKMANSHIP, CORROSION CONTROL, AND FINISH

4.9.1 Verify by observation that the interface and any ancillary equipment is free of rust, discoloration, tool marks, or any other damage or defect that could make the component unsatisfactory for the purpose intended.

4.9.2 Verify by observation that the interface and any ancillary equipment has a finish or coating that is free of foreign materials such as dirt, grease, and oil.

4.9.3 Verify by observations that the interface and any ancillary equipment is free of burrs and sharp edges.

4.10 NAMEPLATSES AND PRODUCT MARKING

4.10.1 Verify by observation that the interface is appropriately identified with separate, unique permanent serial numbers and lot numbers. Verify by observation that a means of identifying the serial number and date (at a minimum, the year) is given for instances where the reliable performance of components are affected by aging.

4.10.2 Verify by observation that the interface is marked/labeled in accordance with MIL-STD-

130N.

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4.11 RADIOACTIVE SOURCES

4.11.1 Verify by observation that the interface does not contain an embedded radioactive source.

4.12 RELIABILITY

4.12.1 Verify by test that the interface, when connected to the RDS Base Unit and DT-304/PDR, provides a MTBOMF, including software and hardware failures, of at least 172 hours.

Refer to MIL-HDBK-781A, Mobile Ground Equipment-Manpack, Category 2.D for guidance.

4.13 MAINTAINABILITY

4.13.1 Verify by observation that the MCMT of the interface does not exceed 60 minutes for any field-level maintenance.

4.13.2 Verify by observation that components internal to the interface are accessible for depot-level repair.

5 PACKAGING

Standard commercial packaging shall be utilized to prevent damage to the interface.