Interpretation Response #14-0074
Below is the interpretation response detail and a list of regulations sections applicable to this response.
Interpretation Response Details
May 8, 2014
Mr. Ruifeng Yin
Authorized Inspector
HSB Technical Consulting & Service (Shanghai) Co., Ltd.
Room 909, Tower A, Fareast Int’l Plaza
319 Xianxia Road, Shanghai, 200051, China
Ref. No.: 14-0074
Dear Mr. Ruifeng Yin:
This is in response to your email dated April 6, 2014, requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) relating to the § 178.45(i)(2) requirements for tension and Charpy impact testing of production cylinders. You request confirmation of your understanding that there are two options for cylinders heat treated in a continuous furnace: 1) tests must be conducted on two tension specimens and three Charpy impact specimens from one cylinder taken from a test lot based on a production period not exceeding 200 cylinders; or 2) tests must be conducted on two tension specimens and three Charpy specimens from a test ring for each four hours or less of production, provided the test lot based on the production period does not exceed 200 cylinders.
You are correct.
If the required specimens are obtained from a cylinder, the cylinder must be from a test lot based on a production period of not more than 200 cylinders.
If the required specimens are obtained from a test ring, each test ring must represent a production time of four hours or less and the test lot based on the production period must not exceed 200 cylinders.
I trust this information is helpful. If you have further questions, please do not hesitate to contact this office.
Sincerely,
Shane C. Kelley
Acting International Standards Coordinator
Standards and Rulemaking Division
178.45(i)(2)
Regulation Sections
| Section | Subject |
|---|---|
| § 178.45 | Specification 3T seamless steel cylinder |