Interpretation Response #10-0079 ([Air Liquide Industrial U.S. LP] [Mr. Steven Bilger])
Below is the interpretation response detail and a list of regulations sections applicable to this response.
Interpretation Response Details
Response Publish Date:
Company Name: Air Liquide Industrial U.S. LP
Individual Name: Mr. Steven Bilger
Location State: TX Country: US
View the Interpretation Document
Response text:
May 26, 2010
Mr. Steven Bilger
Air Liquide Industrial U.S. LP
12800 West Little York Road
Houston, TX 77041
Ref. No. 10-0079
Dear Ms. Bilger:
This responds to your April 9, 2010 email requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) regarding a nitrogen, refrigerated liquid based refrigeration system designed for insulated transport trailers. Specifically you ask if the HMR apply to the 250 gallon cryogenic tank mounted to the bottom of a refrigerated trailer that is used to feed one or more heat exchangers within the trailer.
The answer is no. Section 173.320(b)(2) provides an exception for atmospheric gases when used in operation of a process system; such as a refrigeration system.
I hope this answers your inquiry. If you have further questions, please do not hesitate to contact this office.
Sincerely,
Charles E. Betts
Chief, Standards Development
Office of Hazardous Materials Standards
173.320
Regulation Sections
| Section | Subject |
|---|---|
| 173.320 | Cryogenic liquids; exceptions |