FAQ
Frequently Asked Questions
Question & Answer

Category

Who can provide an understanding of the progress of U.S. hydrogen standards for H2 in transport? Is anyone working on standards for LH2 as a heavy vehicle fuel? ISO standards are available, but they are quite old now.

Generally speaking, the International Fire Code and NFPA 2 apply to non-transportation use of hydrogen. These are maturing quickly, with NFPA 2 currently having issued its most recent edition in 2023. Standards for both on-board LH2 tanks and LH2 tankers for bulk fuel transport are managed by the U.S. Department of Transportation (DOT) and are well established. DOT transport requirements for…

Category: FC Electric Vehicles
Keywords: FC Vehicles, Gas, Liquid, Transport, Standard
What are the considerations for the potential for hydrogen to leak from hydrogen fueled vehicles when they are being transported by truck, rail, or ship? What is the probability and quantity that might leak?

FCEVs usually contain only a minimal amount of hydrogen fuel pressure (several Mpa) to support getting the car on and off car carriers. Panel members are not aware of any hydrogen release incidents during vehicle loading and don’t know what the probability of such a leak is considering the loading operations. A risk assessment accounting for the probability of collisions as well as leaks from…

Category: FC Electric Vehicles
Keywords: FC Vehicles, Ferry, Ship Transport, Lifting Equipment
Is there a standard inspection timeline for Type 4 tanks in mobile applications in North America, or is this timeline set by the tank manufacturer? There references in some documents to an annual inspection being typical and that inspection needs to be conducted by a certified technician (CGA C-6.4 or similar).

It’s not clear if “mobile” in the question refers to vehicle fuel tanks, or vessels used for transportation of hazardous materials. 

  1. If it’s a Type 4 vessel for transportation of hazardous materials, it will be built to a special permit that details the inspection requirements. Special permits vary but they are generally consistent on a 5-year requalification period, which also…
Category: FC Electric Vehicles
Keywords: FC Vehicles, Storage, Tank, Inspection
Download CSV

This material was prepared as an account of work sponsored by an agency of the United States Government.
Twitter H2Tools Facebook H2Tools Instagram H2Tools YouTube H2Tools

Contact

The portal brings together and enhances the utility of a variety of tools and web-based content on the safety aspects of hydrogen and fuel cell technologies to help inform those tasked with designing, approving or using systems and facilities, as well as those responding to incidents.

Copyright © 2024 by H2Tools; H2 Tools is intended for public use. It was built, and is maintained, by the Pacific Northwest National Laboratory with funding from the DOE Office of Energy Efficiency and Renewable Energy's Hydrogen and Fuel Cell Technologies Office. All Rights Reserved
We are professional and reliable provider since we offer customers the most powerful and beautiful themes. Besides, we always catch the latest technology and adapt to follow world’s new trends to deliver the best themes to the market.

Contact info

We are the leaders in the building industries and factories. We're word wide. We never give up on the challenges.

Recent Posts