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Interpretation Response #01-0319 ([ECD Engineering] [Ms. Karen Schaaf])

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

Interpretation Response Details

Response Publish Date:

Company Name: ECD Engineering

Individual Name: Ms. Karen Schaaf

Location State: OH Country: US

View the Interpretation Document

Response text:

January 4, 2002


Ms. Karen Schaaf                       Reference No.: 01-0319
ECD Engineering
5200 Blazer Parkway
Dublin, Ohio 43017

Dear Ms. Schaaf:

This is in response to your inquiry concerning the pressure rating required for plastic drums used to transport 30% ammonium hydroxide under the Hazardous Materials Regulation (HMR; 49 CFR Parts 171-180).  You submitted a Material Safety Data Sheet and a vapor pressure curve with your inquiry.

Under § 173.22, it is the shipper's responsibility to determine that the packaging or container is an authorized packaging, including part 173 requirements, and that it has been manufactured, assembled, and marked in accordance with part 178.  However, based on the information you provided, it is the opinion of this office that a hydrostatic test pressure of at least 300 kPa is required for the plastic drums.

I hope this information is helpful.



John A. Gale
Transportation Regulations Specialist
Office of  Hazardous Materials Standards


Regulation Sections

Section Subject
173.22 Shipper's responsibility