| A Pandemic Influenza Preparedness Study: Use of Energetic Methods to Decontaminate Filtering Facepiece Respirators Contaminated with H1N1 Aerosols and Droplets (POSTPRINT) |
Jun 2012 |
11 pages |
| Authors:
Brian K Heimbuch; William H Wallace; Kimberly R Kinney; April E Lumley; Chang-Yu Wu; Myung-Heiu Woo; Joseph D Wander; APPLIED RESEARCH ASSOCIATES INC TYNDALL AFB FL
|
 | A major concern among healthcare experts is a projected shortage of N95 filtering facepiece respirators (FFRs) during an influenza pandemic. One option for mitigating an FFR shortage is to decontaminate and reuse the devices. Many parameters must be evaluated to verify the effectiveness of this strategy: biocidal efficacy, filtration performance, pressure drop, fit, and residual toxicity. The focus of this research effort was to evaluate the ability of microwave/steam energy, ... |
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| Nondestructive Characterization of Low Velocity Impact Damage in Transparent Laminate Systems |
JUN 2011 |
30 pages |
| Authors:
Raymond E. Brennan; William H. Green; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| Advanced transparent materials are used to improve protection efficiency for lightweight vehicles and Warfighters in applications such as face shields, riot gear, and vehicle windows. If any damage occurs, the ability to withstand single or multiple hits from various threats could be compromised. While these issues are most likely to occur due to impacts from high velocity projectiles during combat, they may also be the result of low velocity impacts ... |
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| Biological Aerosol Test Method and Personal Protective Equipment (PPE) Decon |
MAY 2011 |
36 pages |
| Authors:
Steven H. Hinrichs; Michael B. Lore; TeAnne L. Brown; NEBRASKA UNIV MEDICAL CENTER OMAHA
|
| Capability to simulate surface deposition of contagious droplets from human respiratory secretions, developed for use in a BSL3 laboratory at the University of Nebraska Medical Center (UNMC), was used to quantitatively assess the effects of three decontamination methods [microwave/steam, moist heat, ultraviolet germicidal irradiation] on viable infectious influenza virus A/H5N1. This report describes this capability, including laboratory techniques and methods used to test and analyze samples. UNMC will use this ... |
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| Effectiveness of Three Decontamination Treatments Against Influenza Virus Applied to Filtering Facepiece Respirators |
Oct 2010 |
12 pages |
| Authors:
Michael B Lore; TeAnne L Brown; Steven H Hinrichs; Brian K Heimbuch; Joseph D Wander; NEBRASKA UNIV MEDICAL CENTER OMAHA
|
| Single-use filtering facepiece respirators (FFRs) are effective precautions against airborne pathogenic microorganisms; however, during pandemics the demand for FFRs may far exceed availability. Reuse of FFRs following decontamination has been suggested but few studies to date have addressed the feasibility. Concerns regarding biocidal efficacy, filter performance post decontamination and cost of decontamination may affect the adoption of reuse measures. This study examined the effectiveness of three energetic decontamination methods (ultraviolet ... |
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| Development of a Particle Counting Method for Assessing the Biological Protection Factor of Respirators |
NOV 2006 |
49 pages |
| Authors:
Paul D. Gardner; Karen M. Coyne; Jonathan P. Eshbaugh; Cindy R. Ching; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD
|
| This investigation developed and validated a highly sensitive method based on particle counting technology for assessing the protection afforded by chemical, biological, radiological, and nuclear respirators against biological threat agents. Inert monodisperse and polydisperse aerosols, representative in size to biological agents, were used to challenge a respirator fitted to a headform or worn by a human test participant. An aerosol spectrometer was used to measure aerosol penetration into the facepiece ... |
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| Investigation of Polyurethane Adhesives for Use in the Apache Aviator NBC Protective Mask |
AUG 2001 |
21 pages |
| Authors:
Gerald P. Young; Steven Ciborowski; David May; Lawrence Oswald; Steven Gross; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD
|
| Polyurethane adhesives are currently used in Apache aviator masks to secure polycarbonate lenses to a bromobutyl-natural rubber face piece. An alternative polyurethane adhesive packaged in a pre-measured assembly was investigated to determine its suitability for mask remanufacturing operations. Seventy-five prototype assemblies were prepared with the standard and alternative adhesive. The composite assemblies were then destructively tested on an Instron machine, in tension, to compare rupture strength of the polycarbonate-adhesive-rubber joint ... |
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| History of the Army Protective Mask |
AUG 1999 |
65 pages |
| Authors:
Jeffrey K. Smart; ARMY SOLDIER AND BIOLOGICAL CHEMICAL COMMAND NATICK MA
|
| The next generation protective mask will be a revolutionary advancement in mask technology. The history of masks can be traced to the 16th century. The development of the U.S. Army protective mask dates back to World War I when chemical warfare was first introduced on a large scale. This brief history of the protective mask will cover some of the highlights of its long history. ... |
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| Materials and Manufacturing Technologies for RESPO 21 |
02 FEB 95 |
|
| Authors:
Richard L. Markham; BATTELLE MEMORIAL INST COLUMBUS OH
|
 | The Mask Management Office at Edgewood Research, Development, and Engineering Center (ERDEC) has an objective to develop an improved individual protection system for the 21st century. This new protection system has been designated "RESPO 21". Included in that system will be a mask that must have improved performance and more reliable production techniques over the presently fielded M-4O and related masks. A preliminary design phase was conducted at Battelle that ... |
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| Gateway: Volume 5, Number 3 |
1994 |
21 pages |
| Authors:
Jennifer J. Whitestone; Penelope M. Sanderson; Leila Johannesen; Ken M. Klauer; CREW SYSTEM ERGONOMICS INFORMATION ANALYSIS CENTER WRIGHT- PATTERSON AFB OH
|
| This issue contains articles on the following subjects: (1) Improving Total contact Burn Masks: Three-Dimensional Anthropometric Imaging Techniques; (2) MacSHAPA: Software Support for Observational Data Analysis; (3) Going Behind the Label "Human Error"; (4) Nuclear Power Plants and Human-System Interfaces. |
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| Technology Evaluation for an Advanced Individual Protection System (AIPS) |
DEC 1992 |
179 pages |
| Authors:
L. G. Kastner; Jeffrey W. Broadwater; Joseph M. Ruscak; CHEMICAL WARFARE/CHEMICAL BIOLOGICAL DEFENSE INFORMATION ANALYSIS CENTER EDGEWOOD MD
|
| The objective of this task was to identify, collect data and evaluate technologies that, in the future, will provide enhanced protection and performance for an advanced individual protection system (AIPS). The evaluation assesses the long term expectations of these technologies, identifies research and equipment needed to mature these technologies, and provides a sketch of an AIPS incorporating several of the more promising technologies. This document will serve as a technology ... |
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| Evaluation of Test Methods and Requirements for Respiratory Protection Systems 21 |
NOV 1992 |
75 pages |
| Authors:
T. L. Ramirez; K. M. Reed; M. R. Perry; C. M. Grove; D. E. Molnar; CHEMICAL WARFARE/CHEMICAL BIOLOGICAL DEFENSE INFORMATION ANALYSIS CENTER EDGEWOOD MD
|
| The Joint Services Operational Requirements (JSOR) for vision, communications, respiration, thermal, personal support, compatibility and psychological factors are presented in this summary. The body of the report provides the test methods used with other pertinent information. The test equipment and cost of equipment are provided with recommendations for selection of the test and the equipment. The Recommendation section provides a synopsis of the findings and suggested equipment the advanced protective ... |
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| Evaluation: Compatibility of Respiratory Protective System 21 (RESPO) |
NOV 92 |
66 pages |
| Authors:
Thomas A. Pettenski; James M. Tierney; Phuoc Tran; Matthew W. Walsh; CHEMICAL WARFARE/CHEMICAL BIOLOGICAL DEFENSE INFORMATION ANALYSIS CENTER EDGEW OOD MD
|
| This program investigated compatibility issues with respect to using selected optical and communication equipment with Respiratory Protective System 21 (RESPO 21). Literature searches produced data describing the selected optical and communications equipment in sufficient detail for identifying critical interface areas and for establishing guidelines for design and development of RESPO 21. Time and cost limitations prohibited identifying and investigating every piece of equipment likely to be used with RESPO 21. ... |
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| Materials and Fabrication Methods for the Next Generation of Respiratory Protection (RESPO 21) |
02 NOV 90 |
47 pages |
| Authors:
Harry S. Katz; Radha Agarwal; CHEMICAL WARFARE/CHEMICAL BIOLOGICAL DEFENSE INFORMATION ANALYSIS CENTER EDGEW OOD MD
|
| Although excellent protective items have been developed in the past, it has become very apparent that there is an urgent need for better masks, hoods, and garments that will protect soldiers and civilians from the chemical threats of terrorist groups and countries. There is much room for improvement in performance and cost in order to make the protection more readily available for military personnel and for mass distribution to civilians. ... |
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| Facepiece Material Survey |
JUL 90 |
19 pages |
| Authors:
Walter X. Zukas; Catherine A. Byrne; Michael D. Gilbert; Nathan S. Schneider; Michael S. Sennett; ARMY LAB COMMAND WATERTOWN MA MATERIAL TECHNOLOGY LAB
|
| A survey was carried out to suggest materials or processes which can improve chemical warfare agent (CWA) resistance while maintaining physical properties for a facepiece application. Adhesive bonding to silicone, coating/ surface modification of silicone, coprocessing with silicone, alternative designs, and alternative materials were reviewed. With only limited CWA resistance information available, and alternative design using currently available materials appears to be the best selection to meet the facepiece criteria. ... |
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| Portable, Ambient Air Microclimate Cooling in Simulated Desert and Tropic Conditions |
APR 87 |
24 pages |
| Authors:
Stephen R. Muza; Nancy A. Pimental; Henry M. Cosimini; Mchael N. Sawka; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
|
| The feasibility of providing ambient air during exercise and conditioned air during rest on reducing physiological strain and optimizing tolerance time was examined. Six male soldiers attempted 250-min exposures in hot/dry and hot/wet environments. Subjects wore chemical protective clothing over the combat vehicle crewman uniform and an air-cooled vest. They alternated between 50 min of treadmill walking and 50 min of rest. During the walks, a backpack mounted blower provided ... |
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| Underwater Purging Procedures for the Draeger LAR V UBA (Underwater Breathing Apparatus) |
MAY 86 |
|
| Authors:
F. K. Butler Jr; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| The U.S. Navy has identified a need to switch to the Draeger LAR V closed-circuit oxygen Underwater Breathing Apparatus from open-circuit air while underwater. The revised purge procedure described in NEDU Report 5-84 and subsequently approved for fleet use was tested only at 1 ATA. This study was carried out to develop a purge procedure suitable for use underwater. Three different purge procedures were tested. The incluence of diver position ... |
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| Thermal Responses of Tank Crewman Operating with ;Microclimate Cooling under Simulated NBC Conditions in the Desert and Tropics |
FEB 86 |
|
| Authors:
Bruce S. Cadarette; Nancy A. Pimental; Clement A. Levell; James E. Bogart; Michael N. Sawka; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
|
| As part of the overall field testing of the M1E1 tank, evaluations were made of the thermal responses of crewmen wearing an air-cooled system (vest and ventilated facepiece) designed by the U.S. Army Natick Research, Development and Engineering Center (USANRDEC). Crewmen performed continuous operations for up to 12 hours in MOPP level 4 over the CVC uniform. Testing took place in both desert (Yuma Proving Grounds, AZ) and tropic (Tropic ... |
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| Alternate Materials Evaluation for XM 29 Gas Mask |
JUL 1980 |
112 pages |
| Authors:
ILC DOVER FREDERICA DE
|
| This report covers the evaluation of polyurethane elastomers for use as a lens in the XM-29 Gas Masks. The physical and chemical properties of several commercially available polyurethane resins and adhesives are presented. Thermoplastic polyethers showed the most promise among the polyurethanes investigated, and an Epon/Versamid adhesive showed the most promise among adhesives tested. |
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| Development of a Two-Piece Mask and Lens and Mold for Same. |
MAY 1980 |
|
| Authors:
Tibor Gabris; Stephen B. King; SPRINGBORN LABS INC ENFIELD CT
|
| Modified contract objective was to screen and modify available elastomers for use as lenses for a mask. Also, a program to bond such a lens to a rubber faceblank was required. Two molds-one faceblank less lens area mold and one lens mold were required. By many tests named in the keywords of this and next pages, a Nordel 1320 vulcanizate; covulcanized Nordel 1320/Vynathene CY903; Vynathene EY903 vulcanizate; Elvax 150 vulcanizate ... |
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| Investigative Study on the Feasibility of Utilizing Fluorinated Ethylene Propylene Elastomers as Protective Mask Faceblank Materials. |
MAY 1978 |
|
| Authors:
L. H. Sperling; D. A. Thomas; LEHIGH UNIV BETHLEHEM PA MATERIALS RESEARCH CENTER
|
| This paper demonstrates the feasibility of obtaining a tough, transparent crosslinked fluorocarbon elastomer with reduced creep. The linear material exhibits creep and tackiness but is relatively clear. Existing vulcanizing recipes yield opaque, crosslinked materials. Polymerization is accomplished via high energy radiation. The linear fluorocarbon is physically bound up with the crosslinked network formed by the polymerized monomer, producing a semiinterpenetrating polymer network (IPN) of the second kind. The optimum conditions ... |
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| Human Factors Evaluation of Laser Protective Visors. |
SEP 1972 |
|
| Authors:
William R. Thursby Jr.; Robert G. Braun; Albert V. Alder; SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX
|
| Three laser protective visors and a spectacle-goggle were evaluated by over 100 experenced, rated aircrew members under flight and simulated flight conditons to determine if use of such protective filters would unduly degrade performance of flying duties. Two of the visors and the spectacle-goggle were multiwavelength protective devices. The orange and blue visors provided multiwavelength protection for complementary parts of the near ultraviolet, visible, and the near infrared portions of ... |
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| Evaluation of a Power-Assisted Breathing Device. 1. Airflow Characteristics. 2. Subjective Preference for Airflows over the Face |
APR 1972 |
20 pages |
| Authors:
E. G. Cummings; W. V. Blevins; C. R. Bulette; EDGEWOOD ARSENAL ABERDEEN PROVING GROUND MD
|
| The power-assisted breathing device was conceived to reduce gas mask resistance. This device consisted of a battery-operated blower attached to the inspiratory ports of the M17A1 mask, which was designed for continuous operation during wear. It supplied a flow of air through filters at 56 liters/min; this flow varies during wear with the phase of breathing. Subjective preferences for airflows over the face were tested from 75 to 250 liters/min ... |
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| Protective Eye Shield Against Small Fragments. |
01 JUN 1970 |
24 pages |
| Authors:
Robert J. Hassett; Stuart L. Hanlein; Jack E. Goeller; NAVAL ORDNANCE LAB WHITE OAK MD
|
| Casualty reports from Southeast Asia indicate a need for a small fragment protective eye shield which will not interfere with the normal duties of the user. Commercially available eye goggles which are in accordance with Federal Specification FSN 4240-052-3776 were evaluated and found to provide inadequate ballistic protection. A polycarbonate eye shield which can be easily attached to the M-1 steel helmet was designed and found acceptable in evaluation reports ... |
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| Exhibit of Results of Research on Underwater Speech and Hearing Problems. |
18 MAR 1970 |
|
| Authors:
Harry Hollien; Howard Rothman; FLORIDA UNIV GAINESVILLE COMMUNICATION SCIENCES LAB
|
| An exhibit on research in underwater speech and hearing was presented at the annual convention of the American Speech and Hearing Association in 1969. The exhibit featured several areas relative to diver communication. It was organized so that each panel or group of panels described an area of underwater communication research. The approach utilized was to present a written description of that particular area of research accompanied by pictures taken ... |
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| VISUAL ACUITY UNDER WATER WITHOUT A FACE MASK, |
19 MAY 1969 |
12 pages |
| Authors:
S. M. Luria; Jo Ann S. Kinney; NAVAL SUBMARINE MEDICAL CENTER GROTON CONN SUBMARINE MEDICAL RESEARCH LAB
|
| Visual acuity was measured under water for subjects without face masks and was compared with their acuity in air. The loss of acuity was around 90 percent for the entire group, but there were marked differences for the various sub-groups. Emmetropes suffered the greatest loss in the water; they required targets more than 20 times as big as those they could see in air. Myopes suffered the ... |
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| DECONTAMINATION OF CS/CN RIOT-CONTROL AGENTS. |
FEB 1969 |
|
| Authors:
EDGEWOOD ARSENAL MD
|
| The two types of riot-control agents, CS and CN, used currently in quelling civil disorders are similar, but not identical. However, the same method of decontamination is recommended for both agents, namely: a light-duty detergent such as those recommended for synthetic fabrics and dishes may be used, or a heavy-duty detergent such as those recommended for washing cotton and other heavier materials. (Author) |
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| INVESTIGATION OF THE EFFECTS OF VIBRATION ON DIAL READING PERFORMANCE WITH A NASA PROTOTYPE APOLLO HELMET. |
FEB 1968 |
|
| Authors:
Richard W. Shoenberger; AEROSPACE MEDICAL RESEARCH LABS WRIGHT-PATTERSON AFB OHIO
|
| Dial reading performance while wearing a NASA prototype Apollo helmet was investigated during short duration whole-body sinusoidal vibration. The subjects were in the semisupine position so that the force of gravity acted through the X-axis of the body, with the vibration acting in the X-axis in one experiment and in the Y-axis in another. In each study, dial reading was assessed (subject and dial vibrating) at 6, 11, and 15 ... |
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| Use of Respirators and Methods of Determining Face Fit |
AUG 1967 |
13 pages |
| Authors:
A. Juskiewicz; C. P. Skillern; SANDIA LABS ALBUQUERQUE NM
|
| The methods that are used for determining face fit for respiratory protective devices at Sandia Laboratory are described. Individuals are tested, after their threshold for amyl acetate has been determined, in a room containing a known concentration of amyl acetate. The penetration between the mask and the face is determined by using this information. The criteria for mask issue are given with cleaning and maintenance procedures. |
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| A PRELIMINARY STUDY OF A PROTECTIVE MASK LENS DESIGN TO REDUCE OCCLUSION OF VISUAL FIELD IN OPTICAL FIRE CONTROL INSTRUMENTS. |
DEC 1965 |
|
| Authors:
Charles W. Houff; CHEMICAL RESEARCH AND DEVELOPMENT LABS EDGEWOOD ARSENAL MD
|
| This report describes a preliminary human factors engineering study to resolve the incompatibility between optical fire control instruments and the M17 Protective Mask. The visual field of the instruments is reduced when the mask is worn because the critical distance from the cornea to the instrument lens is shorter than the distance from the cornea to the mask lens. A proposed recessed lens for the M17 mask is described. Limited ... |
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| CHLOROPICRIN LEAKAGE TEST OF THE M17 PROTECTIVE MASK EQUIPPED WITH DRINKING AND RESUSCITATION DEVICES WORN BY VOLUNTEERS. |
OCT 1965 |
12 pages |
| Authors:
Norman B. Billups; Fred W. Oberst; CHEMICAL RESEARCH AND DEVELOPMENT LABS EDGEWOOD ARSENAL MD
|
| A modified form of the M-17 Protective Mask, called the E-13R13 Protective Mask, and equipped with the E-49 drinking and E-50 resuscitation devices, was tested on 6 volunteers for leakages in chloropicrin vapor. Six volunteers serving as controls wore the standard M-17 Protective Mask. All men wore the M-6 hood over the mask. Each exposure lasted for 12 to 15 min per day for 4 days. A variety of light ... |
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| WATER INTAKE AND RESUSCITATION EQUIPMENT FOR PROTECTIVE MASKS |
15 JUL 1964 |
19 pages |
| Authors:
E. D. Legg; WESTINGHOUSE ELECTRIC CORP BALTIMORE MD
|
| The development of low cost highly reliable equipment to be used in service protective masks which will allow the soldier in the field to drink water and to resuscitate battle field casualties while masked in a CB contaminated atmosphere is discussed. There is no such equipment in use at the present time, so that the specific design of the equipment will depend upon laboratory and field testing data obtained during ... |
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| DYNAMIC SIMULATION OF THE A4D FLASH BLINDNESS PROTECTIVE SYSTEM |
25 JUL 1963 |
24 pages |
| Authors:
J. H. Hill; Gloria T. Chisum; W. S. Wray; NAVAL AIR DEVELOPMENT CENTER WARMINSTERPA AVIATION MEDICAL ACCELERATION LAB
|
| Operation of the A4D thermal protective system consisting of a buggy- top thermal enclosure and ELF goggles was evaluated under acceleration stresses of 1.2 to 5 G. Five experienced pilots and three non-pilot subjects operated the system within empirically predetermined limits of safety. All subjects were within the 5th to 95th percentile size range of navy pilots. Subjects in the lower third of the size range exhibited greater facility in ... |
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| Subjective Evaluation of Scott Aviation Corp's Constant Flow Shallow Water Diving Unit. |
15 FEB 1957 |
20 pages |
| Authors:
George Haslip; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| This evaluation was made to determine the suitability of a constant flow shallow water mask as a possible substitute for, or replacement of the U.S. Navy Standard shallow water mask. This constant flow shallow water diving mask was evaluated subjectively by pressure tank dives, and the comments are a composite of the subject's opinions. The results are discussed and lead to recommendations concerning modifications required prior to certification as recommended ... |
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| Old Dominion Amplifier Demand Valve. |
FEB 1957 |
|
| Authors:
C. J. Leyden; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| This evaluation was made to ascertain the conformance of the Old Dominion Corporation's Amplifier Demand Valve with previously set standards for scuba demand-type breathing equipment and to investigate its consistency of operation. The apparatus was evaluated objectively by breathing machine tests and depth swimming tests, with respiratory pressure instrumentation. It was evaluated subjectively by swimming pool runs. Breathing machine results are summarized as graphs of peak inspiratory pressure against cylinder ... |
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| Construction and Evaluation of Effective Dead Space Comparator |
15 JAN 1957 |
28 pages |
| Authors:
Jr Funderburk L. R.; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| A device for comparing the Effective Dead Space (EDS) of various breathing systems and components was fabricated. Apparatus consisted of two electrically driven bellows, one of which 'exhaled' 100% oxygen into the system or component (e.g. mouthpiece, facemask) being tested, next the second bellows 'inhaled' air from the same system and 'exhaled' it into a spriometer. By determining the amount of oxygen in the sample in the spirometer it was ... |
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| Flatus II Semi-Closed Circuit Mixed Gas Scuba |
30 DEC 1955 |
31 pages |
| Authors:
W. C. Hollingsworth; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| This evaluation was made of the semi-closed circuit. Flatus II was prepared for comparison with the LES unit. The Flatus II was tested objectively by breathing machine depth runs with respiratory pressure instrumentation and subjectively by swimming runs. Breathing machine results are summarized as graphs at peak respiratory pressure against depth. Subjective test results are summarized narratively. The results are discussed. |
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| SURFACE-SULPHONATED POLYSTYRENE AS A CANDIDATE MATERIAL FOR RESPIRATOR EYEPIECES |
30-Apr-1953 |
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| Authors:
K F Sawyer; CHEMICAL DEFENCE EXPERIMENTAL ESTABLISHMENT PORTON DOWN (UNITED KINGDOM)
|
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| Modified Scott Model 8300 'Hydro-Pak' |
07 JAN 1953 |
38 pages |
| Authors:
C. T. Kincaid; J. V. Dwyer; NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL
|
| The Scott Model 8300 air-demand self-contained underwater breathing apparatus has been tested by a series of swimming, diving, and depth breathing resistance runs. It does not meet all of the specifications outlined by the Chief of Naval Operations for an apparatus of its type, mainly because it lacks an interchangeable mouthpiece and facemask arrangement. However, it is sound in principle, excellent in construction, and satisfactory for many shallow water diving ... |
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| EFFECTS UPON TANK CREWS OF SEVERAL METHODS OF PROTECTION AGAINST CHEMICAL WARFARE AGENTS |
13 SEP 1944 |
35 pages |
| Authors:
ARMY MEDICAL RESEARCH LAB FORT KNOX KY
|
| Previous tests have shown that tank crews can be adequately protected against Chemical Warfare Agents by three methods: (1) individual combat masks, (2) individual ventilated facepieces supplied with purified air from central motor-blower-canister units and (3) collective protection of the entire tank with purified air under positive-pressure ventilation. The first two methods require the crew to wear impregnated clothing at all times; the third method does not require impregnated clothing ... |
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Reports by Keyword(s)
PROTECTIVE MASK FACEPIECES
