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Interpretation Response #98-0217 ([Polar Service Centers] [Mr. Mark Hughes])

Below is the interpretation response detail and a list of regulations sections applicable to this response.

Interpretation Response Details

Response Publish Date:

Company Name: Polar Service Centers

Individual Name: Mr. Mark Hughes

Location State: SC Country: US

View the Interpretation Document

Response text:

SEP 4, 1998

 

Mr. Mark Hughes                   Reference No. 98-0217
Polar Service Centers
120 Cedar Spring Road
Spartanburg, SC 29302

Dear Mr. Hughes:

This is in response to your letter of July 30, 1998, regarding a suitable corrosion allowance for sulfuric acid in MC 307 cargo tanks under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).  Specifically, you ask whether an MC 307 cargo tank, with a minimum shell thickness of .172 inches and a shell diameter of 50 inches, has a suitable corrosion allowance for sulfuric acid in concentrations up to 65.25 percent.

The answer is yes.  An MC 307 cargo tank having a  minimum shell thickness of .172 inches and a shell diameter of 50 inches has a suitable corrosion allowance for sulfuric acid or spent sulfuric acid in concentrations up to 65.25 percent as specified in Special Provision B84 (§ 172.102).

I hope this answers your inquiry.  If we can be of further assistance, please contact us.

Sincerely,

 

Delmer F. Billings
Chief, Standards Development
Office of Hazardous Materials Standards

172.102

Regulation Sections

Section Subject
172.102 Special provisions