ATTACHMENT_A_Perf_Spec_for_an_UBA_and_SOW_References_B_-_M.pdf

SYSTEM PERFORMANCE SPECIFICATION

FOR AN

UNDERWATER BREATHING APPARATUS

August 2018

DISTRIBUTION F. Further dissemination only as directed by Program Manager NAVSEA, Explosive Ordnance Disposal (SEA 06 – EXM (PMS 408)) (August 2018) or higher DoD authority.

DESTRUCTION NOTICE: For unclassified, limited distribution documents destroy by any method that will prevent disclosure of contents or reconstruction of the document.

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1. SCOPE

1.1. General:

2. APPLICABLE DOCUMENTS

2.1. Government Documents:

3. REQUIREMENTS

3.1. Item Definition:

3.2. Characteristics:

3.2.1. Performance:

3.2.1.1. Operational Duration:

3.2.1.2. Resistive Effort:

3.2.1.3. Maintenance of Oxygen Control Point:

3.2.1.4. Battery Capacity:

3.2.1.5. Oxygen Addition:

3.2.1.6. Primary Display Assembly Operation:

3.2.1.7. Secondary Display Assembly Operation:

3.2.1.8. UBA Operation:

3.2.1.9. Magnetic Signature During Operation of UBA Assembly:

3.2.1.10. Magnetic Signature of Components:

3.2.1.11. System Operational Limits:

3.2.1.12. Integral Buoyancy Compensator:

3.2.1.13. Dive Data Recording:

3.2.1.14. Emergency Gas Supply:

3.2.1.15. Pre-Mission Set Up Time:

3.2.2. Physical:

3.2.2.1. Weight:

3.2.2.2. Buoyancy:

3.2.3. Environmental:

3.2.3.1. Low and High Temperature Operational Limits:

3.2.3.2. Low and High Temperature Storage Limits:

3.2.3.3. Transit Drop:

3.2.3.4. Land Transportation Vibration:

3.2.3.5. Boat Transit Vibration:

3.2.3.6. Salt Fog Corrosion:

3.2.3.7. Hot to Cold Thermal Shock in Air:

3.2.3.8. Air to Water Thermal Shock:

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3.2.4. Electromagnetic Interference/Field (EMI/EMF) Characterization:

3.2.5. Electromagnetic Interference Requirements:

3.2.6. Acoustic Signature:

3.3. Reliability and Maintainability:

3.3.1. Mean Time Between Operational Mission Failures (MTBOMF):

3.3.2. Maintainability:

3.3.3. Operational Availability:

3.4. Design and Construction:

3.4.1. Safety:

3.4.2. Cybersecurity:

3.4.3. Human System Integration

3.4.4. Cleaning Procedures

3.4.5. FFM Compatibility

3.4.6. Navy Decompression Tables

4. VERIFICATION

4.1.1. General:

4.1.2. Responsibility for Inspection:

4.1.3. Test Conditions:

4.2. Quality Conformance Inspection:

4.2.1. Performance Tests:

4.2.1.1. Operational Duration:

4.2.1.2. Resistive Effort:

4.2.1.3. Maintenance of Oxygen Control Point:

4.2.1.4. Battery Capacity:

4.2.1.5. Oxygen Addition:

4.2.1.6. Primary Display Assembly Operation:

4.2.1.7. Secondary Display Assembly Operation:

4.2.1.8. UBA Operation:

4.2.1.9. Magnetic Signature During Operation of UBA Assembly:

4.2.1.10. Magnetic Signature of Components:

4.2.1.11. System Operational Limits:

4.2.1.12. Integral Buoyancy Compensator:

4.2.1.13. Dive Data Recording:

4.2.1.14. Emergency Gas Supply:

4.2.1.15. Pre-Mission Set Up Time:

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4.2.2. Verification of Physical Requirements:

4.2.2.1. Weight:

4.2.2.2. Buoyancy:

4.2.3. Verification of Environmental Requirements

4.2.3.1. Low and High Temperature Operational Limits:

4.2.3.2. Low and High Temperature Storage Limits:

4.2.3.3. Transit Drop:

4.2.3.4. Land Transportation Vibration:

4.2.3.5. Boat Transit Vibration:

4.2.3.6. Salt Fog Corrosion:

4.2.3.7. Hot to Cold Thermal Shock in Air:

4.2.3.8. Air to Water Thermal Shock:

4.2.4. Electromagnetic Interference/Field (EMI/EMF) Characterization:

4.2.5. Electromagnetic Interference Requirements:

4.2.6. Acoustic Signature:

4.3. Reliability and Maintenance:

4.3.1. Mean Time Between Operation Mission Failures:

4.3.1. Maintainability:

4.3.2. Operation Availability:

4.4. Design and Construction:

4.4.1. Safety:

4.4.2. Cybersecurity:

4.4.3. Human System Integration

4.4.4. Cleaning Procedures

4.4.5. FFM Compatibility

4.4.6. Navy Decompression Tables

5. PACKAGING

6. ACRONYMS

1. SCOPE

1.1. General: This specification establishes the requirements for manufacture and acceptance of the Underwater Breathing Apparatus (UBA).

2. APPLICABLE DOCUMENTS

2.1. Government Documents: The following documents, of the issue in effect on the date of the final Order, form a part of this specification to the extent specified herein. In the event of conflict between this specification and other documents referenced herein, requirements of this specification shall apply.

Ref Document Date Description

A MIL-DTL-19595D 11 Feb 2003 Magnetic Effect Limits for Nonmagnetic

Equipment Used In the Proximity of

Magnetic Influence Ordnance

B MIL-STD-810G

Change 1

15 Apr 2014 Environmental Engineering Considerations and Laboratory Tests

C MIL-STD-1330D

Change 1

28 Jun 2007 Standard Practice for Precision Cleaning and

Testing of Shipboard Oxygen, Helium, Helium-Oxygen, Nitrogen, and Hydrogen

Systems

D MIL-STD-129R

Change 1

24 May 2018 Military Marking for Shipment and Storage

E MIL-STD-130N

Change 1

16 Nov 2012 Identification Marking of U.S. Military

Property

F MIL-HDBK-781A 1 April 1996 Reliability Test Methods, Plan, and

Environments for Engineering, Development

Qualification, and Production

G MIL-STD-461G 11 Dec 2015 Requirements for the Control of

Electromagnetic Interference Characteristics of Subsystems and Equipment

H DOD-STD-1399

Section 070 Part 1

26 Feb 1979 D.C. Magnetic Field Environment

I NAVSEA TS500-

AU-SPN-010

23 Aug 2006 U.S. Navy General Specification For The

Design, Construction, And Repair Of Diving

And Hyperbaric Equipment

J NEDU TM 15-01 June 2015 Navy Experimental Diving Unit Technical

Manual NO. 15-01. U.S. Navy Unmanned

Test Methods and Performance Limits for

Underwater Breathing Apparatus

K PCPUBA-A-001 24 Apr 2007 Standard Test Procedure For Determining

The Acoustic Signature of Underwater

Breathing Apparatuses

L SS521-AG-PRO-010 30 Apr 2018 U.S. Navy Diving Manual – Revision 7

Change A

M SS521-AA-MAN-

010 Change A

05 Mar 2018 U.S. Navy Diving and Manned Hyperbaric

Systems Safety Certification Manual –

Revision 3, Change A

N MIL-STD-1472G 11 Jan 2012 Design Criteria Standard: Human

Engineering

O DOD-INST-8500.01 14 Mar 2014 Cyber Security

P NAVSEA S9310-

AQ-SAF-010, 2nd

Revision

18 Oct 2010 Technical Manual for Navy Lithium Battery

Safety Program Responsibilities and

Procedures

Q MIL-STD-2073-1E,

Change 2

9 Jul 2018 Standard Practice for Military Packaging

R MIL-STD-1366E 31 Oct 2006 Interface Standard for Transportation Criteria

S NAVSEAINST

10560.2E

07 Oct 2003 The Diving Equipment Authorized For

Military Use (AMU) Program

3. REQUIREMENTS

3.1. Item Definition: The UBA is a low influence signature underwater breathing apparatus designed to allow divers to safely approach influence activated ordnance underwater to a maximum depth of 300 feet of sea water (FSW). The unit can be used with multiple diluents, either Nitrox or Heliox. The unit must be compatible with an Approved for Navy

Use (ANU) Full Face Mask (FFM) and be in conformance with U S Navy Decompression

Tables. The unit is a self-contained system of the rebreather type that provides the following nominal partial pressure of oxygen (PPO2) characteristics (all depths are +/- 2

FSW) at a 1.6 SLPM O2 metabolic consumption rate, as defined in REF J:

Depth (FSW) PPO2

Descent

0 - 32 0.75 (±0.15 ATA)

32 - 300 1.30 (±0.15 ATA)

Ascent

300 - 12 1.30 (±0.15 ATA)

12 - 0 0.75 (±0.15 ATA)

The following major subsystems make up the UBA:

a. Recirculation subsystem

b. Pneumatic subsystem

c. Electronics subsystem

d. Housing and hardware subsystem

3.2. Characteristics:

3.2.1. Performance: The following are performance requirements for the UBA:

3.2.1.1. Operational Duration: The UBA must provide the prescribed breathing loop characteristics for 30 minutes at a breathing rate of 36 Respiratory Minute

Volume (RMV) and an additional 240 minutes at a breathing rate of 22.5 RMV when tested IAW paragraph 4.2.1.1.

3.2.1.2. Resistive Effort: Resistive Effort (WOB/L or KPa) using HeO2 (88/12) as diluent 1.3 partial pressure of oxygen (PPO2) to 300 fsw shall not exceed 2.41 KPa.

Resistive Effort (WOB/L or KPa) using N2O2 (79/21) or HeO2 (88/12) as diluent

1.3 PPO2 to 150 fsw shall not exceed 2.04 KPa. Testing shall be IAW paragraph

4.2.1.2.

3.2.1.3. Maintenance of Oxygen Control Point: The UBA shall automatically maintain the oxygen level, measured as the average steady state PPO2 at the nominal levels called out in paragraph 3.1 when tested IAW paragraph 4.2.1.3. The steady state peak to peak PPO2 shall not exceed ± 0.15 atmospheres absolute (ATA) from the required level.

3.2.1.4. Battery Capacity: Power source shall energize all electronic components of the UBA under each of the following two conditions, when tested IAW paragraph 4.2.1.4.

Condition 1: Starting with a fully charged battery(s), the UBA will be held at 29ºF while powered on and operate through one dive duration cycle, as defined in paragraph 3.2.1.1, and an additional 0.5 hours for setup, travel, and post dive.

Condition 2: Starting with a fully charged battery(s), the UBA will be held at 99ºF while powered on and operate through one dive duration cycle, as defined in paragraph 3.2.1.1, and an additional 0.5 hours for setup, travel, and post dive.

In addition, the battery must meet the current requirements of REF P as applicable for lithium batteries.

3.2.1.5. Oxygen Addition: Provide sufficient oxygen flow to maintain required

PPO2 levels, as defined in paragraph 3.1, at 90 RMV when tested IAW paragraph

4.2.1.5.

3.2.1.6. Primary Display Assembly Operation: When tested IAW paragraph

4.2.1.6, the primary display shall have the capability to alert the diver via a silent visual alarm to UBA system failures that are potentially life threatening to include:

PPO2 outside acceptable range limit

Low gas bottle pressure

Low power supply (if applicable to UBA)

3.2.1.7. Secondary Display Assembly Operation: The secondary display assembly shall display the PPO2 output from each sensor, all battery voltages and gas bottle pressures when tested IAW paragraph 4.2.1.7.

3.2.1.8. UBA Operation: The UBA shall, IAW paragraph 4.2.1.8, include one or more external on/off switches allowing the electronics to be turned on and off without exposing the electronics to the elements.

3.2.1.9. Magnetic Signature During Operation of UBA Assembly: The magnetic signature of the complete UBA with the exception of any front-mounted assembly shall comply with the noncontact assembly requirements (12-inch) test distance of REF A, when tested IAW paragraph 4.2.1.9. Any front-mounted assembly shall meet the contact assembly (4.5-inches test distance) of REF A, when tested IAW paragraph 4.2.1.9.

3.2.1.10. Magnetic Signature of Components: All components of the UBA when tested individually shall comply with the contact or noncontact component requirements, as applicable, of REF A when tested IAW paragraph 4.2.1.10. Any system assemblies which require special test distances shall be documented in the

TDP.

3.2.1.11. System Operational Limits: The UBA shall be capable of proper operation to a maximum depth, as defined in paragraph 3.1, and shall operate in water temperatures between 29° and 99° F (-2° and 37° C) when operated IAW paragraph 4.2.1.11. The PPO2 switchover shall occur at the depths specified in paragraph 3.1 with an accuracy of ± 2 FSW. Oxygen Partial Pressure shall not rise above 1.9 atmospheres absolute (ATA) and should not fall below 0.30 ATA at any time during a dive mission profile.

3.2.1.12. Integral Buoyancy Compensator: Must be Approved for Navy Use

(ANU) and the integral buoyancy compensator shall provide a minimum of 44 lbs lift from maximum depth, as defined in paragraph 3.1, and tested IAW paragraph

4.2.1.12. The buoyancy compensator must not use breathing gas (separate gas source) for inflation. It must have attachment points and pockets for ancillary equipment. It must have integrated weights for buoyancy control and must accommodate use with or without dry suit. It shall be a modular component; must be able to be removed.

3.2.1.13. Dive Data Recording: The UBA shall include the capability to record data throughout the dive and tested IAW paragraph 4.2.1.13, including: calibrated oxygen sensor reading, oxygen add valve state, battery voltage, dive time, bottle pressure, water temperature, primary display state, calibration factors for all sensors, and depth. Electronic versions shall allow for storage of system status data and easy transfer of this data using a standard interface. Transferred data shall be written to a standard file format. Update/record rate shall be once every three seconds or more frequently.

3.2.1.14. Emergency Gas Supply: MMUBA will be compatible with a safe diver egress/emergency gas supply that will provide a breathable gas mixture in the event of a failure to egress the diver from maximum depth, as defined in paragraph 3.1, to an auxiliary breath gas supply without the need to doff the mask when tested

IAW paragraph 4.2.1.14.

3.2.1.15. Pre-Mission Set Up Time: Pre-Mission Setup is the setup and calibration and/or ppO2 setting adjustment conducted before a mission when tested IAW paragraph 4.2.1.15. Setup time shall not exceed 60 minutes.

3.2.2. Physical:

3.2.2.1. Weight: The UBA shall not exceed 87 lbs in air, when configured to be neutrally buoyant in sea water when tested in accordance paragraph 4.2.2.1.

3.2.2.2. Buoyancy: The UBA shall be neutrally buoyant +/- 2 pounds in seawater when tested IAW paragraph 4.2.2.2.

3.2.3. Environmental: Neither the operational capability nor the physical condition of the UBA shall be affected by the following environmental conditions. A fully operational UBA refers to a UBA with a full scrubber, battery(s) installed, and not in transportation case. In the fully operational condition “off” means the electronics are powered down, “on” means the electronics are turned on and powered up. A UBA in the stored condition refers to a UBA with an empty scrubber, full bottles, battery(s) removed, oxygen sensors removed, and in the transportation case.

3.2.3.1. Low and High Temperature Operational Limits: The UBA shall be fully operational in water temperatures ranging from 29° to 99° F (-2° to 37°C) when operated IAW its Operation and Maintenance (O & M) Manual and tested

IAW paragraph 4.2.3.1.

3.2.3.2. Low and High Temperature Storage Limits: The UBA, less its oxygen sensors and battery(s) while packed in its transportation case, shall be capable of being stored, without damage, in temperatures ranging from -24° to 130° F (-31° to

54° C) when tested IAW paragraph 4.2.3.2.

3.2.3.3. Transit Drop: The UBA, in its storage condition (without scrubber, oxygen sensors and battery(s)), shall be capable of surviving, without damage, a 30 inch drop on any edge, face or corner onto a 2 inch thick (backed by concrete) plywood surface. Damage refers to damage of the UBA itself. Transportation case damage is allowed. Testing shall be IAW paragraph 4.2.3.3.

3.2.3.4. Land Transportation Vibration: The UBA, in its storage condition

(without scrubber, oxygen sensors and batteries), shall sustain no damage and shall operate properly, IAW the O & M Manual, after being subjected to the transportation vibration test of paragraph 4.2.3.4 for 2.5 hours per axis. Cosmetic damage that does not preclude operation of the system is acceptable.

3.2.3.5. Boat Transit Vibration: The UBA, in its operational configuration, shall sustain no substantial damage and shall operate properly IAW paragraph 4.2.3.5.

Cosmetic damage that does not preclude operation of the system is acceptable.

3.2.3.6. Salt Fog Corrosion: The UBA, in its operational condition, shall be tested for corrosion after being subjected to four 24-hour cycles of the salt fog test

IAW paragraph 4.2.3.6. Cosmetic damage that does not preclude operation of the system is acceptable.

3.2.3.7. Hot to Cold Thermal Shock in Air: The UBA, in its operational condition, shall remain fully operational after being exposed to a hot air to cold air thermal shock with temperatures of 130° and -24°F, IAW paragraph 4.2.3.7.

3.2.3.8. Air to Water Thermal Shock: The UBA, in its operational condition, shall be capable of being exposed to an Air to Water Shock without incurring damage, IAW paragraph 4.2.3.8.

3.2.4. Electromagnetic Interference/Field (EMI/EMF) Characterization: The UBA and all associated UBA equipment shall be tested IAW paragraph 4.2.4 to characterize its behavior over the ranges specified below.

Radiated emissions, magnetic field, 30 Hz to 100 kHz.

Radiated emissions, electric field, 10 kHz to 18 GHz.

Radiated susceptibility, magnetic field, 30 Hz to 100 kHz.

Radiated susceptibility, electric field (10 V/m), 2 MHz to 30 MHz.

DC magnetic field requirements of REF H, section 070, Part 1.

3.2.5. Electromagnetic Interference Requirements: The UBA and all associated equipment should not be susceptible to, or sustain damage when subjected to a radiated electric field when tested IAW paragraph 4.2.5 and operated in accordance with the

O & M Manual. Additionally the equipment must not be significantly impacted by a radiated electric field strength of 20 V/m in the following frequencies

30 MHz to 512 MHz Vertical.

30 MHz to 512 MHz Horizontal.

3.2.6. Acoustic Signature: UBA shall not expel excess gas from the breathing loop (i.e., burping) while descending or maintaining depth +/- 5 FSW in the water column. The

UBA will be characterized for acoustic signature when tested IAW paragraph 4.2.6.

3.3. Reliability and Maintainability:

3.3.1. Mean Time Between Operational Mission Failures (MTBOMF): MTBOMF shall be tested IAW paragraph 4.3.1 and exceed 90 hours, where:

Mission time starts after setup and ends at mission completion.

An Operational Mission Failure is defined as a failure, after setup, which precludes continuation of the mission with that UBA.

3.3.2. Maintainability: Operational Maintainability is the measure of the ability of an item to be retained in, or restored to, a specified condition when maintenance is performed using prescribed procedures and technician skill levels. The mean corrective maintenance time for operational failures shall be less than 1.5 hours when tested IAW paragraph 4.3.2.

3.3.3. Operational Availability: Operational Availability is the percentage of time that the MMUBA is operationally capable of performing an assigned mission and when it is unavailable. The UBA shall have an Operational Availability of 0.85 or more IAW paragraph 4.3.3.

3.4. Design and Construction: The UBA shall be designed to produce a safe breathing medium to provide life support to the diver during operational and training dives. It shall be constructed (fabricated, assembled, cleaned, tested, etc.) so that it fully meets this design intent. Where no specific requirements exist, best commercial practices, consistent with the design intent, shall apply. Design and construction shall be in accordance with REF N.

3.4.1. Safety: Components, materials, or processes posing potential safety or health hazards, if identified, shall not be used IAW paragraph 4.4.1. All UBAs prior to fielding shall be certified for use by Navy’s Diving Technical Warrant Holder (TWH), SEA

00C.

3.4.2. Cybersecurity: The system shall be tested IAW paragraph 4.5, as applicable, for the storage and transmission of data. Prior to fielding, the system must receive certification in accordance with REF O for a Platform Information Technology (IT) or

Non-IT system.

3.4.3. Human System Integration Human Systems Integration (HSI) principles and procedures will be employed to enable the UBA to meet its primary goal of providing naval forces the ability to safely and effectively perform EOD and Diving missions.

Proper Human Factors Engineering (HFE) design shall be incorporated IAW the approach and guidance (REF N) during all phases of system development, testing, and production and throughout the life cycle of the system. System components shall be designed for transportability, maintainability, and use under varying ambient light conditions ranging from bright sunlight to total darkness. The system shall provide readily intuitive system fault or failure information and support fault or failure troubleshooting, localization, and corrective action to minimize impacts to safe system operation and operational effectiveness. The system shall be operable and maintainable by qualified operators with no (or extremely minimal) need for special tools.

3.4.4. Cleaning Procedures Cleaning of breathing gas systems shall be performed using locally prepared and NAVSEA approved written cleaning procedures, IAW with REF

C for oxygen systems. Cleaning may be accomplished during fabrication/assembly, upon final completion of assembly, or in a combination of both, in accordance with the overall contamination control process developed by the production activity or invoked by the Acquisition Manager. Cleaning procedures shall include methods for sampling and criteria for acceptance. Quantitative analysis to verify system cleanliness must be performed and documented prior to manned use of the system. Hydrocarbon contamination is of particular concern because hydrocarbons may be both toxic and flammable. For guidance in atmosphere evaluation and cleaning, refer to REF I.

3.4.5. FFM Compatibility A FFM is a type of diving mask that seals the whole of the diver's face from the water and contains a mouthpiece or demand valve that provides the diver with breathing gas. The US Navy has several approved FFMs on the

Approved for Navy Use (ANU) list; this public site ANU can be found here:

http://www.navsea.navy.mil/Home/SUPSALV/00C3-Diving/Diving-ANU/. The

UBA must be compatible with a FFM on the ANU list. If the FFM used with the UBA is not currently on the ANU, it must be able to meet the requirements to be added as outlined in REF S. The verification method for this requirement is outlined in 4.4.5.

3.4.6. Navy Decompression Tables The unit must be in conformance with the current

U S Navy Decompression Tables.

4. VERIFICATION

4.1.1. General: This section prescribes the categories of examination and tests to be performed in order to ascertain that the hardware delivered by the supplier conforms to the specified design characteristics of this specification.

4.1.2. Responsibility for Inspection: The vendor is responsible for ensuring all units are in proper working order before delivery. Units will be tested as received by the

Government. Data provided by the vendor will also be reviewed as received by the

Government. The Government reserves the right to perform any inspections or tests set forth in the RFQ or in referenced documents, drawings or specifications, where such inspections are deemed necessary to assure that the UBA conforms to the prescribed requirements specified herein and on referenced drawings and specifications.

4.1.3. Test Conditions: Unless otherwise specified, all tests shall be conducted at the ambient condition of the testing activity.

4.2. Quality Conformance Inspection:

4.2.1. Performance Tests: The UBA shall operate properly during an operational acceptance dive when operated IAW the O & M Manual and REF J.

4.2.1.1. Operational Duration: The requirements for duration will be tested IAW

REF J.

4.2.1.2. Resistive Effort: The requirements for RE will be tested IAW REF J.

4.2.1.3. Maintenance of Oxygen Control Point: The requirements will be tested

IAW REF J. The PPO2 shall be measured with an oxygen analyzer with an accuracy of +/- 0.05 ATA.

4.2.1.4. Battery Capacity: The requirements will measured with a stopwatch when operated IAW the O&M manual. In addition, the battery must meet the current requirements of REF P as applicable for lithium batteries.

4.2.1.5. Oxygen Addition: The requirements will be tested IAW REF J and the flow is measured with a flow meter having a minimum accuracy of ± 0.1 SLPM.

The test gas shall be nitrogen IAW Commercial Item Description A-A-59503.

4.2.1.6. Primary Display Assembly Operation: The primary electronics assembly shall meet the requirements of paragraph 3.2.1.6. The validation will be done by observation of the primary display during other scheduled testing.

4.2.1.7. Secondary Display Assembly Operation: The secondary display assembly shall meet the requirements of paragraph 3.2.1.7. The validation will be done by observation of the secondary display during other scheduled testing

4.2.1.8. UBA Operation: The requirements will be tested IAW REF J.

4.2.1.9. Magnetic Signature During Operation of UBA Assembly: The requirements of a fully assembled and operating UBA shall be tested IAW REF A and REF J.

4.2.1.10. Magnetic Signature of Components: Those components of the UBA which have been determined and documented to require nonmagnetic testing shall be verified IAW REF A.

4.2.1.11. System Operational Limits: The requirements will be tested IAW REF

J.

4.2.1.12. Integral Buoyancy Compensator: The requirements will be tested IAW

REF J.

4.2.1.13. Dive Data Recording: The UBA shall meet the data recording requirements of paragraph 3.2.1.13. Testing will be done in conjunction with other tests, and data verified by transferring and reviewing data.

4.2.1.14. Emergency Gas Supply: The requirements will be tested IAW REF J.

4.2.1.15. Pre-Mission Set Up Time: The requirements will be tested using a stopwatch.

4.2.2. Verification of Physical Requirements:

4.2.2.1. Weight: The requirements shall be weighed on scales having an accuracy of +/- 0.25 pounds.

4.2.2.2. Buoyancy: The UBA will be placed in sea water and weighed on a spring scale having an accuracy of +/- 0.5 pounds.

4.2.3. Verification of Environmental Requirements

4.2.3.1. Low and High Temperature Operational Limits: The UBA shall not be damaged or have degraded performance when tested as required IAW REF B to validate the requirements of paragraph 3.2.3.1.

4.2.3.2. Low and High Temperature Storage Limits: The UBA shall not be damaged or have degraded performance when tested at temperature limits defined by paragraph 3.2.3.2. Low temperature storage testing shall be conducted IAW

REF B, Method 502.5, Procedure I. High temperature storage testing shall be conducted IAW REF B, Method 501.5, Procedure I.

4.2.3.3. Transit Drop: The UBA shall not be damaged or have degraded performance, when tested IAW REF B, Procedure IV, Method 516.6.

4.2.3.4. Land Transportation Vibration: (UBA in Stored Condition) The UBA shall not be damaged or have degraded performance when tested IAW REF B, Method 514.6, Category 4, Secured Cargo (Trucks/Trailers), using profiles shown in Figure 514.6C-I.

4.2.3.5. Boat Transit Vibration: (UBA in Operational Condition - Off) The requirements will be verified by testing the UBA for 1800 repetitions of a 4g, 40ms pulse to simulate small boat transit.

4.2.3.6. Salt Fog Corrosion: The UBA shall not be damaged or have degraded performance when tested IAW REF B, Method 509.5.

4.2.3.7. Hot to Cold Thermal Shock in Air: The UBA shall not be damaged or have degraded performance when tested IAW REF B, Method 503.5, Procedure 1 utilizing the temperatures in paragraph 3.2.3.7.

4.2.3.8. Air to Water Thermal Shock: The UBA shall not be damaged or have degraded performance when tested to 99°F (37°C) air for four hours, immediately followed by 29°F (-2°C) water for one hour. The test will be repeated for a total of three cycles. The UBA should also be subjected to 70°F (21°C) air for four hours, immediately followed by 105°F (41°C) water for one hour. The test will be repeated for a total of three cycles.

4.2.4. Electromagnetic Interference/Field (EMI/EMF) Characterization: The UBA and all its associated equipment shall be characterized by paragraph 3.2.4 over the listed ranges. All testing shall be conducted IAW REF G, test specification RE101, RE102, RS 101, and RS103.

4.2.5. Electromagnetic Interference Requirements: As required by paragraph 3.2.5, the UBA and all its associated equipment should not be susceptible to, or sustain damage when subjected to a radiated electric field when tested IAW REF G, test specification RS103 over the specified range.

4.2.6. Acoustic Signature: The acoustic signature for the UBA shall be verified IAW

REF K when operated in accordance with the O & M Manual.

4.3. Reliability and Maintenance:

4.3.1. Mean Time Between Operation Mission Failures: As required by paragraph

3.3.1, MTBOMF is calculated as Mission Hours / # of Operation Mission Failures.

4.3.1. Maintainability: As required by paragraph 3.3.2, Maintenance time starts when the failure is identified and a maintenance action is initiated and ends when the fix is completed, or the item is deemed non-operational and returned to the depot for more extensive repair. This is an average across the aggregate for the population of UBAs and is defined as follows: Total Maintenance Time / # of Maintenance Actions.

4.3.2. Operation Availability: As required by paragraph 3.3.3, the Operational

Availability (Ao) is defined as the MTBOMF / (MTBOMF+MCMTOMF+MLDT).

Mean Logistics Delay Time (MLDT) is the Total Number of Hours / Total Parts

Requested. Where the following definitions apply:

Mean Time Between Maintenance (MTBM) is the measure of average time between all maintenance actions, both corrective and preventive

(MTBM = Total Number of Hours/Total Maintenance Events).

Mean Corrective Maintenance Time for Operational Mission Failure

(MCMTOMF) is derived from the Mean Time to Repair (MTTR), which is the measure of time it would take to perform corrective maintenance on the MMUBA.

Mean Logistics Delay Time (MLDT) is the average time required to obtain replacement parts from the Operational Support Kit (OSK) and ready for installation

(MLDT = Total Number of Hours/Total Parts Requested)

4.4. Design and Construction:

4.4.1. Safety: As required by paragraph 3.4.1, verification of safety requirements will be conducted by SEA 00C as the TWH for diving. UBAs receiving certification shall pass this requirement during evaluation.

4.4.2. Cybersecurity: The UBA system shall be evaluated in accordance with REF O utilizing current Navy-approved tool; the final production system shall be certified in accordance with REF O.

4.4.3. Human System Integration HSI principles and procedures will evaluated using a variety of tools (questionnaires, design reviews, data collection principles) to collect qualitative data from users and subject matter experts with regard to the suitability of the UBA. This data will be collected in coordination with other scheduled testing events.

4.4.4. Cleaning Procedures Documented vendor cleaning procedures will be reviewed and evaluated by SEA 00C as the Navy’s Diving TWH as part of the certification process.

4.4.5. FFM Compatibility The requirement outlined in 3.4.5 will be observed during testing to ensure that a approved FFM is compatible with the system, and is deemed adequate through questionnaires and HSI reviews as discussed in 4.4.3.

4.4.6. Navy Decompression Tables The unit being operated IAW the O&M manual, must meet the current navy dive tables as outlined in REF L in Table 15-10 and

Table 15-13.

5. PACKAGING

Packaging is defined as the process and procedures used to protect material from deterioration, damage, or both. It includes cleaning, drying, preserving, packing, marking and unitization. The packaging requirements shall be as specified in the contract in accordance with REF Q and REF

R.

Container marking will be done in accordance with REF E for Item Unique Identification

(IUID). IUID not required for prototype delivery.

6. ACRONYMS

Table 1. Acronyms and Abbreviations Table

Acronym Meaning

AO Operational Availability

ANU Approved for Navy Use

ATA Atmospheres Absolute

DODIN Department of Defense Information Network

DRM Design Reference Mission

EOD Explosive Ordnance Disposal

FFM Full Face Mask fsw Feet of sea water

Hz Hertz

IAW In accordance with

Acronym Meaning

MCMTOBMF Mean Corrective Maintenance Time for Operational Mission

Failure

MLDT Mean Logistics Delay Time

MMUBA Multi-Mission Underwater Breathing Apparatus

MTBOMF Mean Time Between Operational Mission Failures

NAVSEA Naval Sea Systems Command

NSWC-PCD Naval Surface Warfare Center – Panama City Division

PPO2 Partial Pressure of Oxygen

RMV Respiratory Minute Volume

UBA Underwater Breathing Apparatus

NOT MEASUREMENT

SENSITIVE

MIL-STD-810G

w/Change 1 15 April 2014

SUPERSEDING

31 October 2008

DEPARTMENT OF DEFENSE

TEST METHOD STANDARD

ENVIRONMENTAL ENGINEERING CONSIDERATIONS

AND LABORATORY TESTS

AMSC N/A AREA ENVR

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

NOTICE OF

CHANGE

Source: https://assist.dla.mil -- Downloaded: 2014-06-26T21:24Z Check the source to verify that this is the current version before use.

w/CHANGE 1

PART ONE

PART ONE-ii

FOREWORD

1. This Standard is approved for use by all Departments and Agencies of the Department of Defense (DoD).

Although prepared specifically for DoD applications, this Standard may be tailored for commercial applications as well. This Change Notice to version G incorporates updates and clarifications to the earlier edition. The primary emphases are still the same - (with the exception of Method 528) tailoring a materiel item's environmental design and test limits to the conditions that the specific materiel will experience throughout its service life, and establishing laboratory test methods that replicate the effects of environments on materiel, rather than trying to reproduce the environments themselves. The goal is to provide an up-front explanation of how to implement the environmental tailoring process throughout the materiel acquisition cycle.

This revision recognizes that the environmental design and test tailoring process has expanded to involve a wide range of managerial and technical interests. Accordingly, this revision orients environmental design and test direction toward three basic types of users who have distinctly different, although closely associated, interests:

Program Managers who, among other responsibilities, ensure proposed concepts and systems are valid and functional in intended operational environments; environmental engineering specialists (EES), who enter the acquisition process early to assist combat and materiel developer tailoring efforts by preparing life cycle environmental profiles and drafting tailored design criteria and test programs; and the design, test, and evaluation community, whose analysts, engineers, and facility operators use tailored designs and tests to meet user needs.

2. Part One describes management, engineering, and technical roles in the environmental design and test tailoring process. It focuses on the process of tailoring materiel design and test criteria to the specific environmental conditions a materiel item is likely to encounter during its service life. Annex A contains complete descriptions of environmental engineering tasks, including additional guidance on Task 402, Life Cycle Environmental Profile (LCEP). These tasks, along with management information in Annex B and EES guidance in Annex C, will help to ensure the environmental design and test tailoring process is implemented and documented according to the disciplined, but flexible approach to materiel acquisition called for in Department of Defense (DoD) 5000-series documents (DoDD 5000.1). Terms used in this Standard relating to the materiel acquisition process are limited to terms used in the DoD 5000-series documents; to avoid confusion and promote simplicity, service-specific terms/processes are not used.

3. Part Two contains environmental laboratory test methods to be applied according to the general and specific test tailoring guidelines described in Part One. It is important to emphasize that, with the exception of Method 528, these Methods are not to be called out in blanket fashion, nor applied as unalterable routines, but are to be selected and tailored to generate the most relevant test data possible. Methods 500 through 527 now contain the Note, “Tailoring is essential. Select methods, procedures and parameter levels based on the tailoring process described in Part One, paragraph 4.2.2, and Annex C. Apply the general guidelines for laboratory test methods described in Part One, paragraph 5 of this Standard.” Prior to the start of testing, all deviations as a result of tailoring shall be approved by the proper authorities. It should further be noted that the rationale for such deviations and/or tailoring shall be recorded in the test report.

To support the tailoring process described in Part One, each test method in Part Two contains some environmental data and references, and identifies tailoring opportunities for the particular method. Some methods afford a wide latitude for tailoring; some can be tailored up to established limits, and some have relatively few tailoring options.

Whenever possible, each method contains background rationale to help determine the appropriate level of tailoring.

Each test method supports the test engineer and test facility operator by describing preferred laboratory test facilities and methodologies. Any specific tailoring information and values contained in these test methods should be supplanted by more up-to-date field/fleet or program-specific information when available.

When applied properly, the environmental management and engineering processes described in this Standard can be of enormous value in generating confidence in the environmental worthiness and overall durability of materiel system design. However, it is important to recognize that there are limitations inherent in laboratory testing that make it imperative to use proper caution and engineering judgment when extrapolating these laboratory results to results that may be obtained under actual service conditions. In many cases, real-world environmental stresses (singularly or in combination) cannot be duplicated practically or reliably in test laboratories. Therefore, users should not assume that a system or component that passes laboratory tests of this Standard also would pass

PART ONE-iii field/fleet verification trials. DoD 5000-series documents call for component technology to be demonstrated in relevant environments to reduce risk on components and subsystems that have been demonstrated only in laboratory environments (DoDI 5000.2).

4. Part Three contains a compendium of climatic data and guidance assembled from several sources to include AR 70-38, “Research, Development, Test and Evaluation of Materiel for Extreme Climatic Conditions,” (1979), Draft AR 70-38 (1990) that was assembled using 1987 Air Land Battlefield Environment (ALBE) report information, “Environmental Factors and Standards for Atmospheric Obscurants, Climate, and Terrain,” and MIL-HDBK-310, Global Climatic Data for Developing Military Products.

Part Three provides planning guidance for realistic consideration (starting points) of climatic conditions in the research, development, test, and evaluation (RDTE) of materiel and materials used throughout their life cycles in various climatic regions throughout the world. It is intended that this and related documents will help achieve the objective of developing materiel that will perform adequately under the environmental conditions likely to be found throughout its life cycle in the areas of intended use.

5. The US Department of Defense would like to thank the following individuals for their contributions toward the development and publication of MIL-STD-810G Change Notice 1:

Army Army

Jimmie Barnett – Dugway Proving Ground Scott Walton – Aberdeen Test Center

Michael Barry – Aberdeen Test Center

William (Bill) Barber – Redstone Test Center Air Force

Michael (Troy) Bedsole – Redstone Test Center Dwayne Bell – Eglin AFB

William (Skip) Connon – Aberdeen Test Center Cheryl Copes – ASC/ENRS, Wright-Patterson Air Force Base

Jeff Dallman – White Sands Missile Range Lorraine Wright – ASC/ENRS, Wright-Patterson Air Force Base

Herb Egbert – DTC (Retired) Sean Mortara – ASC/ENFS, Wright-Patterson Air Force Base

Rick Errhalt – Electronic Proving Ground

Judy Galloway – Aberdeen Test Center Navy

Mike Hale – Redstone Test Center Brian Haugen – NAWC, China Lake

Anthony Ham – ATEC, APG James E. Howell III – NSWC

John Harris – Redstone Test Center Andrew Johnson – NSWC, Dahlgren

Michael Bartosiak – SDDCTEA, Scott AFB Wayne Johnson – NAWC, Patuxent River

Jessica Knight – ATEC, APG Ron Merritt – NAWC, China Lake

Paul Krause – COE, TEC (Retired) Luke Martin – NSWC, Dahlgren

Matthew Lucas – Redstone Test Center Brett Tanner – NAWC, China Lake

Bob McKinnon – Aberdeen Test Center

Joe Nash – AMRDEC Private Industry

Randy Patrick – Yuma Test Center Vesta Bateman – Mechanical Shock Consulting

Rick Reynaud – White Sands Missile Range George Coonley – KHS Tech. Lighting

Steve Sanders – AMRDEC Chris Peterson – Consultant

Brendt Sigvart – Dugway Proving Ground

Jamie Sullivan – Redstone Test Center Organizations

Eric Tessier – White Sands Missile Range IEST – Institute of Environmental Sciences and Technology

Ken Thompson – ATEC, APG SAVE – Shock and Vibration Exchange

PART ONE-iv

The MIL-STD-810 Working Group wishes to recognize with great appreciation Mr. Ken Thompson, MIL-STD-810 Committee Chairman, for his exemplary leadership, guidance, and dedication to bringing this collaborative project to fruition.

6. This Standard is intended to be a "living document" that will be updated as new concepts, technologies, and methodologies evolve.

Questions about this document’s technical content may be addressed to the following offices:

US Army Test and Evaluation Command, 2202 Aberdeen Blvd, ATTN: CSTE-TM, Aberdeen Proving Ground, MD 21005-5055; Commercial Tel: (443) 861-9338; DSN 848-9338; Fax: (443) 861-9927.

Aeronautical Systems Center, ATTN: ASC/ENFS, 2530 Loop Road West, Wright-Patterson AFB, OH 45433-7101;

Commercial Tel: (937) 255-8517 or 904-5863; DSN 785-8517 or 674-5863; Fax: (937) 476-4546 or 255-2363.

Naval Air Warfare Center, Aircraft Division, ATTN: Code AIR-4.3.4, Patuxent River, MD 20670; Commercial Tel:

(301) 342-8049; DSN 342-8049; Fax: (301) 757-1213.

Naval Air Warfare Center, Weapons Division, ATTN: Code 476300D, China Lake, CA 93555-6100; Commercial Tel: (760) 939-4667; DSN 437-4667; Fax: (760) 939-1065.

The Preparing Activity for MIL-STD-810 transferred from Air Force Code 11 to Army Code TE on 14 November 2008.

Comments, suggestions, or questions on this document should be addressed to US Army Test and Evaluation Command, 2202 Aberdeen Blvd, ATTN: CSTE-TM, Aberdeen Proving Ground, MD 21005-5001; or e-mailed to usarmy.apg.atec.mbx.atec-standards@mail.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https://assist.dla.mil.

CONTENTS

PART ONE -- ENVIRONMENTAL ENGINEERING PROGRAM GUIDELINES

Paragraph Page

1. SCOPE ................................................................................................................................... PART ONE-1

1.1 Purpose................................................................................................................................... PART ONE-1

1.2 Application............................................................................................................................. PART ONE-2

1.3 Limitations ............................................................................................................................. PART ONE-3

2. APPLICABLE DOCUMENTS.............................................................................................. PART ONE-4

2.1 General................................................................................................................................... PART ONE-4

2.2 Government Documents ........................................................................................................ PART ONE-4

2.2.1 Specifications, Standards, and Handbooks............................................................................. PART ONE-4

2.2.2 Other Government Documents, Drawings, and Publications................................................. PART ONE-5

2.3 Non-Government Publications............................................................................................... PART ONE-5

2.4 Order of Precedence............................................................................................................... PART ONE-5

3. DEFINITIONS....................................................................................................................... PART ONE-5

3.1 Terms ..................................................................................................................................... PART ONE-5

3.2 Acronyms............................................................................................................................... PART ONE-9

4. GENERAL PROGRAM GUIDELINES................................................................................ PART ONE-9

4.1 Program Managers ................................................................................................................. PART ONE-9

4.1.1 Roles of the Program Manager .............................................................................................. PART ONE-9

4.1.2 Guidance for Program Managers ........................................................................................... PART ONE-9

4.1.2.1 Concept of Operations (CONOPS) ...................................................................................... PART ONE-11

4.1.2.2 System Requirements Document (SRD).............................................................................. PART ONE-12

4.1.2.3 Initial Capabilities Document (ICD) .................................................................................... PART ONE-12

PART ONE-v

CONTENTS - Continued

4.1.2.4 Capabilties Development Document (CDD)........................................................................ PART ONE-12

4.1.2.5 Capabilties Production Document (CPD) ............................................................................ PART ONE-12

4.1.2.6 System Engineering Management Plan (SEMP).................................................................. PART ONE-12

4.1.2.7 Test and Evaluation Master Plan (TEMP) ........................................................................... PART ONE-12

4.2 Environmental Engineering Specialists (EES)..................................................................... PART ONE-13

4.2.1 Roles of Environmental Engineering Specialists ................................................................. PART ONE-13

4.2.2 Environmental Engineering Tailoring Tasks ....................................................................... PART ONE-13

4.2.2.1 General................................................................................................................................. PART ONE-13

4.2.2.2 Preparing an Environmental Engineering Management Plan (EEMP), Task 401............................................................................................................................... PART ONE-13

4.2.2.3 Developing an Environmental Test and Evaluation Master Plan (ETEMP) ........................ PART ONE-14

4.2.2.4 Preparing a Detailed Environmental Test Plan (DETP), Task 405 ...................................... PART ONE-14

4.2.2.5 Preparing an Environmental Test Report (ETR), Task 406 ................................................. PART ONE-14

4.3 Design and Test Engineers and Facility Operators .............................................................. PART ONE-15

4.3.1 Roles of Design Engineers ................................................................................................... PART ONE-15

4.3.2 Roles of Test Engineers/Facility Operators.......................................................................... PART ONE-15

4.3.3 Guidance for Design and Test Engineers and Test Facility Operators................................. PART ONE-15

4.3.3.1 Natural Environment (Field/Fleet) Testing .......................................................................... PART ONE-15

4.3.3.2 Laboratory Testing............................................................................................................... PART ONE-15

5. GENERAL LABORATORY TEST METHOD GUIDELINES.......................................... PART ONE-18

5.1 Test Conditions .................................................................................................................... PART ONE-18

5.2 Tolerances for Test Conditions ............................................................................................ PART ONE-18

5.3 Test Instrumentation. ........................................................................................................... PART ONE-19

5.3.1 Suitability for Environment.................................................................................................. PART ONE-19

5.3.2 Calibration............................................................................................................................ PART ONE-19

5.4 Stabilizing Test Temperature. .............................................................................................. PART ONE-19

5.4.1 Test Item Operating. ............................................................................................................ PART ONE-19

5.4.2 Test Item Non-Operating. .................................................................................................... PART ONE-19

5.5 Test Sequence. ..................................................................................................................... PART ONE-20

5.6 Test Level Derivation........................................................................................................... PART ONE-20

5.7 Pretest Information for Facility Operators. .......................................................................... PART ONE-20

5.8 Test Setup............................................................................................................................. PART ONE-20

5.8.1 Installing the Test Item in Test Facility. .............................................................................. PART ONE-20

5.8.2 Test Item Operation. ............................................................................................................ PART ONE-21

5.9 Pretest Baseline Data. .......................................................................................................... PART ONE-21

5.10 Information During Test. ..................................................................................................... PART ONE-21

5.11…