Interpretation Response #98-0567 ([Weld-It Company] [Mr. Michael J. Young])
Below is the interpretation response detail and a list of regulations sections applicable to this response.
Interpretation Response Details
Response Publish Date:
Company Name: Weld-It Company
Individual Name: Mr. Michael J. Young
Location State: CA Country: US
View the Interpretation Document
Response text:
May 1, 1998
Mr. Michael J. Young
Engineer
Weld-It Company
4477 Shelia Street
Los Angeles, CA 90023
Dear Mr. Young:
This is in response to your letter requesting clarification on the calculation of exposed area in square feet for 49 CFR 178.345-10. You state that it is your understanding that in § 178.345-10(e), in Table 1, the exposed area in square feet is determined from outside of the cargo tank. Therefore, for a typical straight barrel four compartment tank the exposed area of compartment one and four would include the area of one head, and the middle compartments two and three would only include the shell since both heads for these compartments are internal.
Your understanding is correct. For the purpose of calculation, the exposed area is determined from outside of the tank, and the internal heads of compartments two and three would not be included in the calculation.
I trust this satisfies your inquiry.
Sincerely,
Thomas G. Allan
Senior Transportation Regulations Specialists
Office of Hazardous Materials Standards
178.345-10
Regulation Sections
| Section | Subject |
|---|---|
| 178.345-10 | Pressure relief |