Interpretation Response #PI-82-0108
Below is the interpretation response detail and a list of regulations sections applicable to this response.
Interpretation Response Details
Response Publish Date:
Company Name:
Individual Name:
Location State: OK Country: US
View the Interpretation Document
Response text:
July 29, 1982
Mr. R. G. Keearns
Williams Pipe Line Company
P.O. Box 3448
Tulsa, Oklahoma 74101
Dear Mr. Keearns:
Your letter dated February 16, 1982, requested a waiver from compliance with §195.310 by using a
digital pressure gauge in lieu of a dead weight tester.
Enclosed is a Pipeline Safety Regulatory Interpretation of §195.310 which states that the use of a
dead weight tester is not required. Hence, a waiver from compliance with §195.310 is not required
in order to use the proposed digital pressure gauge for hydrostatic testing.
Sincerely,
Melvin A. Judah
Acting Associate Director for Pipeline Safety Regulation Materials Transportation Bureau
Enclosure
No. 82-6
Date: July 29, 1982
DEPARTMENT OF TRANSPORTATION RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION MATERIALS TRANSPORTATION BUREAU
PIPELINE SAFETY REGULATORY INTERPRETATION
Note: A pipeline safety regulatory interpretation applies a particular rule to a particular set of facts and circumstances, and, as such, may be relied upon only by those persons to whom the interpretation is specifically addresses.
SECTION: 195.310
SUBJECT: Use of a digital pressure gauge in lieu of a dead weight tester
during hydrostatic test.
FACTS: Williams Pipe Line Company letter dated February 16, 1982,
requested a waiver from compliance with §195.310 to use a digital pressure gauge instead of a dead weight tester.
INTERPRETATION: Section 195.310 does not require the use of dead weight testers during hydrostatic test. The purpose of the use of the term is to assure that substantial evidence of testing is kept and when §195.310 was adopted, dead weight testers were in common use. Comparable data from modern equipment will suffice in meeting the requirements of §195.310.
Melvin A. Judah
Acting Associate Director for
Pipeline Safety Regulation
Materials Transportation Bureau