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Technical Reports

The following is a list of Research Projects and Technical Reports. When you click a report you will see a brief description of the contents, a list of key words related to the content, and a link to the PDF.

If you have any technical questions not addressed by these documents, contact Mark Toughiry, 202-366-4545.

The Technical Reports are shown in the following table.
TitleDescriptionDate
Modal acoustic emission (MAE) Examination Specification for Requalification of Composite Overwrapped Pressure Vessels (cylinders and tubes)This document (standard) describes the use of modal acoustic emission (MAE) testing during periodic inspection and testing (Requalification) of hoop wrapped and fully wrapped composite transportable gas cylinders and tubes, with aluminum-alloy, steel or non-metallic liners or of lineless construction, intended for compressed and liquefied gases under pressure.May 3, 2018
DOE/DOT Crude Oil Characterization Research Study, Task 2 Test Report on Evaluating Crude Oil Sampling and Analysis MethodsThe DOE/DOT Crude Oil Characterization Research Study was designed to evaluate whether crude oils currently transported in North America, exhibit physical or chemical properties that are distinct from conventional crudes, and how these properties associate with combustion hazards that may be realized during transportation and handling. The report presents results from Task 2, investigating which commercially available methods can accurately and reproducibly collect and analyze crude oils for vapor pressure and composition, including dissolved gases.Dec 28, 2017
Advanced Analysis and Examination of a Ruptured DOT 3AL Oxygen CylinderThis project was initiated by PHMSA, Hazardous Materials Engineering and Research Division to determine the root/cause of rupture of an oxygen cylinder on April 2014 and resulted in a personal injury.Mar 21, 2017
Basic Requirements for Fully Wrapped Carbon-Fiber Reinforced Aluminum Lined CylindersUsed by OHM as the basis for evaluating fully wrapped carbon-fiber reinforced cylinders.Mar 1, 2007
Chemical and Metallurgical Analysis of Ruptured DOT-3AL Specification Compressed Gas CylinderNorth Miami Beach, FLJun 1, 1994
Confirmation of Filling DensitiesListed in the United Nation (UN) Model Regulations, Volume I, Thirteenth revised edition.Nov 1, 2002
DOT FRP-1 Standard, Basic Requirements For Fiber Reinforced Plastic Type 3FC Composite CylindersUsed by OHM as the basis for evaluating Type 3FC Composite Cylinders.Feb 17, 1987
DOT FRP-2 Standard, Basic Requirements For Fiber Reinforced Plastic Type 3HW Composite CylindersUsed by OHM as the basis for evaluating Type 3HW Composite Cylinders.Jan 14, 1987
Evaluation of Acoustic Emission and Thermography Examinations (AE/TE) in Accessing Impact Damage of FULLY WRAPPED CARBON-FIBER REINFORCED ALUMINUM LINED CYLINDERS (DOT-CFFC)The objective of this research and development (R&D) project is to develop a nondestructive examination (NDE).Aug 22, 2008
Evaluation of DOT 3AL 6061-T6 Cylinders to Determine the Crack Initiation Site (CIS) Which Were Detected in Cylinder's Neck ThreadsThis research project is a part of Failure Investigation and Metallurgical Analysis of DOT 3AL cylinders that were rejected during requalification due to internal neck-cracks.Aug 19, 2010
Evaluation of Nondestructive Examination for Re-qualification Of Composite GasThis R&D has been performed to evaluate several NDE methods based on their potential ability to detect common flaws such as impact damage in composite gas cylinders.Sep 30, 2002
Evaluation of Ruptured DOT-E-7235 CylinderCoram, NYMar 13, 1993
Fatigue Life Improvement of DOT-CFFC Composite CylindersThe main purpose of this research work was to addresses aggressive environmental exposure effects on DOT-CFFC composite cylinders, and the use of Modal Acoustic Emission (MAE) examination of the cylinders to identify cylinders with compromised strength due to the aggressive environmental exposure.Dec 1, 2015
Fire Investigation of DOT 3AL Cylinder Failure in Luraville, FLThis report is Evaluation / Analysis of the valve that was on an Oxygen DOT 3AL cylinder that was ruptured in Luraville, FL.Sep 1, 2006
Forensic Evaluation and Documentation of Pressure Relief Devices (PRDs) of Argon Cryogenic Portable TankThis research project is a part of Failure Investigation relating to an argon portable tank incident in Port Everglades, Florida.May 2, 2011
Fractographic and Microstructural Examination of a Ruptured DOT-3AL Specification Compressed Gas CylinderWonderlake, ILMay 3, 1993
Guidance for Conducting Hazardous Materials Flow StudiesProvides step-wise guidance for conducting commodity flow studies for hazardous materials moving by highway. 
Hydraulic Pressure Cycling and Performance Evaluation of DOT-3AA CylinderResult of a fatigue and performance testing of DOT-3-AA Seamless Steel Cylinders.Oct 23, 2007
Hydraulic Pressure Cycling and Performance Evaluation of five (5) DOT-3AL 2015 CylindersThis research project is a part of Failure Investigation and Metallurgical Analysis of DOT 3AL cylinders that were rejected during requalification due to internal neck-cracks.Feb 5, 2010
Investigation of SCBA Cylinder FailureEureka, CAMar 4, 1996
Metallurgical Evaluation / Analysis ReportsMetallurgical Evaluation / Analysis Reports performed on DOT-3-AA Seamless Steel Cylinder.Jun 20, 2007
Metallurgical Evaluation of Anhydrous Ammonia Cargo Tank (Nurse Tank)The report is result of a failure analysis and metallurgical analysis of a cargo tank (commonly known as a Nurse Tank).Jun 20, 2007
Metallurgical Evaluation of DOT-3AL-2015 Cylinder T-57003Allegan City/Kalamazoo, MISep 9, 1997
Metallurgical Evaluation of DOT-3AL-3000 Cylinder J95119Key Largo, FLMar 17, 2000
Metallurgical Evaluation of DOT-3AL2015 CylinderUnion City, GAJul 1, 1996
Metallurgical Evaluation of DOT-E-6498-2216 Aluminum Gas Cylinder - T119168Summerfield, NCMay 3, 1999
Metallurgical Evaluation of DOT-E-6498-2216 CylinderRoxbury/Morristown, NJJul 1, 1996
Metallurgical Evaluation of DOT-E-7042-3000 Cylinder D-99604Riviera Beach, FLFeb 4, 1998
Navy Self-Contained Breathing Apparatus (SCBA) Composite Cylinder Life Extension Research ProjectThis research project was initiated to assess the risk associated using the US Navy SCBA composite cylinders (DOT FRP-1 and CFFC) beyond their 15 year service life to a maximum of 30 year of service from the original manufacturing date of the cylinder.Aug 30, 2012
Neck Threads Inspection: ExternalBasic guidelines for the inspection and evaluation of DOT/TC cylinder (tube) mounting threads with outside diameter greater than or equal 18Jul 31, 2007
Phase I - Modeling of Current Standards for Selecting Pressure Vessel Steels (DOT Packaging) to Transport Hydrogen-Bearing GasesThe goal of this project is to determine which laboratory test method(s) can be used to most reliably evaluate steels for the construction of cylinders and tubes used for transportation and storage of compressed natural gases (CNG), hydrogen and hydrogen-bearing gases.Aug 25, 2016
Pneumatic Pressure Test: Key Largo Cylinder (DOT-3AL-3000 Cylinder J95119)Key Largo, FLOct 4, 2000
Procedure for Removal of Nonconforming Hazardous Materials Packagings from ServiceUsed by OHM as the basis for removing nonconforming packagings from service.Jul 31, 2007
Rupture Evaluation Tests for Mechanical strength and Fracture Toughness for DOT-3AL-6351 T6 Alloy CylinderNorth Miami Beach, FLJun 1, 1994
Self-Contained Breathing Apparatus (SCBA) Composite Cylinder Environmental Exposure Effects on DOT-CFFC Cylinders with Modal Acoustic Emission ExaminationThe main purpose of this research work was to addresses aggressive environmental exposure effects on DOT-CFFC composite cylinders, and the use of Modal Acoustic Emission (MAE) examination of the cylinders to identify cylinders with compromised strength due to the aggressive environmental exposure.Jun 30, 2015
Self-Contained Breathing Apparatus (SCBA) Composite Cylinder Life Extension Research ProjectThis research and development (R&D) project was initiated to assess the risk associated by using the SCBA composite cylinders (DOT FRP-1 and CFFC) at the Municipal Fire Stations beyond their 15 year service life.Jun 20, 2014
Technical Support Relating to Gas Cylinders Design, Operation and Re-qualificationIn the UN Model Regulations, Volume I, Thirteenth revised edition. pertaining.Nov 1, 2002
Updated: Tuesday, May 8, 2018