New Process for Managing Non-Code Pressure Vessels Creates NASA Standard
August 16, 2021
NASA-STD-8719.26A, NASA Requirements for Ground Based Non-Code Metallic Pressure Vessels went into effect May 11, 2021. This standard is intended to manage risk to personnel, facilities, missions and the environment posed by the use of existing ground-based, non-code metallic Pressure Vessels that either 1) do not comply with applicable American Society of Mechanical Engineers code requirements specified in Occupational Safety and Health Administration 29 CFR pt. 1910 regulations or 2) were modified and no longer comply with the code.
NASA Pressure System Software Sets Standard for Analysis
June 21, 2021
The Office of Safety and Mission Assurance Layered Pressure Vessel Risk Mitigation project team designed software to simplify and improve calculations required by the ASTM E1921, Standard Test Method for Determination of Reference Temperature, T0, for Ferritic Steels in the Transition Range.
NASA Breakthrough in Multi-Layered Pressure Vessel NDE
October 13, 2020
The Office of Safety and Mission Assurance’s Multi-Layered Pressure Vessel Risk Mitigation Project (MLPVRMP) made significant advancements in detecting weld flaws in Multi-Layered Pressure Vessels (MLVP) through the use of advanced techniques in Nondestructive Evaluation (NDE). The unique design and fabrication of MLPVs made inspection of inner weld areas joining shell to shell layers impossible, until now. This breakthrough presents the agency with the ability to thoroughly examine and baseline in-service MLPVs for critical weld flaws, thereby supporting selective MLPV replacement based on verified risk.
OSMA Promotes Development of NASGRO® Software for Use on Ground-Based Pressure Systems
August 07, 2020
In recent years, the Office of Safety and Mission Assurance (OSMA) Pressure Systems program accomplished a number of efforts to facilitate broader use of NASGRO for the analysis and sustainment of pressure systems. By expanding the use of NASA’s perpetual, royalty-free NASGRO license, centers across the agency will realize a significant cost savings.
SMA Leadership Profile: Clifton Arnold
June 30, 2020
When asked about his new Safety and Mission Assurance (SMA) role, Clifton Arnold joked that it came with many hats — in fact, more hats that he ever expected.
“The position expanded,” explained Arnold. “Pressure Systems included ground and flight pressure systems. With that, Lifting Devices was added, and then we included a special category called Propellants and Pressurants that deals with all propellants and inert gases.
Updates to PVS ANSI/AIAA Standards
June 26, 2018
Updates to American National Standards Institute (ANSI)/American Institute of Aeronautics and Astronautics (AIAA) S-080A, Space Systems—Metallic Pressure Vessels, Pressurized Structures, and Pressure Components and ANSI/AIAA S-081B, Space Systems—Composite Overwrapped Pressure Vessels went into effect March 2018.
Updates to NASA-STD-8719.17
November 07, 2017
The NASA Pressure Vessels and Systems Working Group developed updates to NASA-STD-8719.17, Requirements for Ground-Based Pressure Vessels and Pressurized Systems (PVS). With thousands of ground-based pressure systems across the agency storing substantial amounts of energy, it’s essential requirements for their safe and reliable operation remain current.