Interpretation Response #17-0107
Below is the interpretation response detail and a list of regulations sections applicable to this response.
Interpretation Response Details
Response Publish Date:
Company Name: Catalina Composites
Individual Name: Ray Denny
Location State: CA Country: US
View the Interpretation Document
Response text:
February 5, 2018
Ray Denny
Engineering Manager
Catalina Composites
11700 Monarch Street
Garden Grove, CA 92841
Reference No. 17-0107
Dear Mr. Denny:
This letter is in response to your October 2, 2017, email requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to the design and construction requirements for UN composite cylinders. Specifically, you refer to part 8.5.10.2 of ISO 11119-2(E), Gas cylinders—Gas cylinders of composite construction—Specification and test methods—Part 2. You ask if a cylinder can be fitted with any authorized pressure relief device (PRD) and valve combination, if it passed the test in 8.5.10.2(b).
The answer is yes, provided the service equipment meets the requirements of § 178.71(d). The test requirement you reference in ISO 11119-2(E) is for the cylinder itself, not the service equipment.
I hope this information is helpful. Please contact us if we can be of further assistance.
Sincerely,
Dirk Der Kinderen
Chief, Standards Development Branch
Standards and Rulemaking Division
178.71(d)
Regulation Sections
| Section | Subject |
|---|---|
| 178.71 | Specifications for UN pressure receptacles |