ABC_PD_Appendix_A_Environmental.pdf

Standard Marine Corps Environment Version 2012-04-23

Appendix A

STANDARD

MARINE CORPS

ENVIRONMENTAL

SPECIFICATIONS

Prepared by

Program Manager - Expeditionary Power Systems

Marine Corps Systems Command

1.0 Introduction

This document is intended to be used as an appendix to a technical specification. It consists of standard environmental, transportation, and safety and human factors requirements for Marine

Corps equipment. All specifications shall be considered non-Critical Performance Parameters unless otherwise stated in the main specification document. In the event of a conflict between this document and the technical specification, the technical specification shall be considered a superseding requirement.

2.0 Applicable Documents

Number Title Revision

MIL-STD-461

Requirements For The Control Of Electromagnetic Interference

Characteristics Of Subsystems And Equipment F

MIL-STD-810

DOD Test Method Standard for Environmental Engineering and

Laboratory Tests G

MIL-STD-129P(4) Military Marking for Shipment and Storage 19-Sep-2007

MIL-S-901D 17-Mar-1989

3.0 Applicability to Various Environments

3.1.1 Controlled Environment. A controlled environment is one in which there is a large amount of environmental protection. This may be found in a tent, building or other enclosed structure.

3.1.2 Semi-controlled Environment. A semi-controlled environment is one in which there is some environmental protection. This may be found in a warehouse, in storage areas aboard ship, or in an enclosed shipping container.

3.1.3 Uncontrolled Environment. An uncontrolled environment is one in which there is very little to no environmental protection. This may be found outdoors.

The following chart will define which of the environmental conditions apply to each environment.

Para Spec Name Controlled Semi-controlled Uncontrolled

4.1 Environmental

4.1.1 Continued Operation X X X

4.1.2 Storage Temperature Range X X

4.1.3 Humidity X X X

4.1.4 Salt Fog X X

4.1.5 Sand and Dust X

4.16 Immersion X

4.1.7 Drip Proof X X

4.1.8 Rain X

4.1.9 Functional Shock X X X

4.1.10 Operational Altitude X X X

4.1.11 Storage Altitude X X

4.1.12 Cord/Cable Temperature X X X

4.1.13 Cord/Cable Environmental

Resistance X X X

4.1.14 Ice Glaze X

4.1.15 Fungus Resistance X X X

4.1.16 Rail Impact X X

4.1.17 Shipboard Equipment Shock X X

4.1.18 Wind X

4.2 Transportability

4.2.1 Loose Cargo Bounce X X

4.2.2 Shipping Special Considerations X X X

4.2.3 Transit Drop X X

4.2.4 Road Profile X X

4.2.5 Bench Handling X X X

4.3 Electromagnetic Interference

4.3.1 Electromagnetic Interference X X X

4.4 Safety And Human Factors

4.4.1 Shock Hazards X X X

4.4.2 Warning Labels X X X

4.4.3 Controls/Displays X X X

4.4.4 Visual Indicators X X X

4.4.5 Safety and Health Hazards X X X

4.4.6 OSHA/EPA Requirements X X X

4.0 Performance Specifications

4.1 Environmental

4.1.1 Continued Operation. It is desired that the system, when exposed to these conditions of paragraph 4.0, show no evidence of structural damage, misalignment or malfunction of components, leaks, fractures, abnormal vibrations, or any other irregular operation and continue to operate to specification.

4.1.2 Storage Temperature Range. It is desired that the system remain operable after storage in ambient temperatures ranging from -59 degrees F to +160 degrees F.

4.1.3 Humidity. It is desired that the system be able to operate in at least 95% non-condensing relative humidity at +131 degrees F without damage (tested in accordance with MIL-

STD-810G Method 507.5).

4.1.4 Salt Fog. It is desired that the system meet corrosion resistance (salt fog) requirements

(tested in accordance with MIL-STD-810G, Method 509.5).

4.1.5 Sand and Dust. It is desired that the system meet all requirements and incur neither damage nor degradation of performance in an environment with sand and dust particle concentration up to 1,400 milligrams per cubic meter (mg/m3). Particle sizes shall range from less than 74 micrometers in diameter to 1,000 micrometers with the bulk of the particles ranging in size from 74 to 350 micrometers. (Ref: Mil STD 810G 510.5).

4.1.6 Immersion. It is desired that the system function properly after immersion in water at a depth of 1 meter for 30 minutes (tested in accordance with MIL-STD-810G, Method

512.5, Procedure I). Immersion will be while the system is not operating, and in its transit case, if provided.

4.1.7 Drip Proof. It is desired that the system be splash proof, drip proof, and corrosion resistant. (Ref: Mil STD 810G 506.5 Procedure III)

4.1.8 Rain. It is desired that the system meet rain resistance standards (tested in accordance with MIL-STD-810G, Method 506.5, Procedure I, up to 4.0 in/hr rain fall rate), and operate properly during and after exposure to rain while in any operating or transport configuration.

4.1.9 Functional Shock. It is desired that the system remain operable after functional shock

(tested in accordance with MIL-STD-810G Method 516.6 Procedure I).

4.1.10 Operational Altitude. It is desired that the system operate in any configuration at un-pressurized altitudes up to 15,000 feet Above Sea Level.

4.1.11 Storage Altitude. It is desired that the system be capable of operation after shipment or transportation at un-pressurized altitudes up to 50,000 feet Above Sea Level.

4.1.12 Cord/Cable Temperature. It is desired that all cords provided be rated for 221 degrees F or above.

4.1.13 Cord/Cable Environmental Resistance. It is desired that all cords provided be waterproof

(IP-67 or better), oil resistant, and sunlight resistant.

4.1.14 Ice Glaze. It is desired that the system meet all requirements and incur neither damage nor degradation of performance with accumulations of ice glaze, freezing rain, and hoarfrost up to 0.5 inch and up to a specific gravity of 0.9. (reference MIL-STD-810G, Method 521.3).

4.1.15 Fungus Resistance. It is desired that the system be constructed with material resistant to fungus growth under conditions favorable for fungi development and withstand the species of fungus for a minimum period of 28 days (Ref: MIL-STD-810G, Method

508.6).

4.1.16 Rail Impact. It is desired that the system as installed withstand rail impact testing per

MIL-STD-810G Method 526.

4.1.17 Shipboard Equipment Shock. It is desired that the system withstand shipboard equipment shock testing at multiple deck frequencies 8, 15, 25 and 40 Hz per MIL-S-901D.

4.1.18 Wind. It is desired that the system withstand sustained wind speeds up to 50 Miles Per

Hour (mph) and wind gusts up to 60 mph.

4.2 Transportability

4.2.1 Loose Cargo Bounce. It is desired that the system withstand the impact forces and meet the requirements, without damage or permanent deformation, of the loose cargo bounce and vibration test for one hour each, in each of the 3 axis (tested in accordance with MIL-

STD-810G, Method 514.6, Procedure II, Category 5). System will not be in operation and will be in its transit case, if provided.

4.2.2 Shipping Special Considerations. It is desired that the system be capable of being shipped worldwide via commercial air, rail, sea, and highway transportation without special consideration.

4.2.3 Transit Drop. It is desired that the system meet the requirements of transit drop shock

(multiple drops per MIL-STD 810G, Method 516.6, Procedure IV) from a height of 30 inches onto a hard surface and still operate properly. System will not be in operation and will be in its transit case, if provided.

4.2.4 Road Profile. It is desired that system and/or components, when mounted to any tactical vehicle in the USMC inventory, be capable of operating over the mission profile of 60% on-road and 40% off-road as defined below.

Terrain % Operation Roughness

Primary Roads 30 0.1" - 0.3" RMS

Secondary Roads 30 0.3" - 1.0" RMS

Trails 20 1.0" - 3.4" RMS

Cross country 20 1.5" - 4.8" RMS

4.2.5 Bench Handling. It is desired that the system and all components remain operable after bench handling. (Ref: MIL-STD-810G 516.6 Procedure VI).

4.3 Electromagnetic Interference

4.3.1 Electromagnetic Interference. It is desired that the system be immune to radio frequency

(RF) / Electromagnetic Interference (EMI). To control the electromagnetic emissions and susceptibility characteristics of the system, the installation of electrical/electronics subsystems and associated interface conform to the performance requirements for CE102, RE102 and RS103 of MIL STD461F for the Ground Navy installation.

4.4 Safety And Human Factors

4.4.1 Shock Hazards. It is desired that the system overall design incorporate methods to protect personnel from inadvertent contact with voltages capable of producing shock hazards.

4.4.2 Warning Labels. It is desired that permanent warning labels and/or indicators to warn of human hazards be provided on the system.

4.4.3 Controls/Displays. It is desired that the system have controls and displays that are easy to locate and understand.

4.4.4 Visual Indicators. It is desired that any visual indicators provided on the system be easy to read in all lighting conditions. If illumination is used as a method of displaying information, It is desired that the system have the capability to allow a user to temporarily disable all light emitting sources during black-out scenarios. Indicators should not depend on color perception to interpret.

4.4.5 Safety and Health Hazards. It is desired that the system not present major safety or health hazards while being operated, maintained or supported.

4.4.6 OSHA/EPA Requirements. It is desired that the system conform to all current

Occupational Safety and Health Administration (OSHA) and Environmental Protective

Agency (EPA) requirements.