# Keehn Service Corporation — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 00-0123
- **title:** Keehn Service Corporation — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2000-05-10
- **effective on:** Not available
- **summary:** 00-0123 response to Keehn Service Corporation concerning 180.407.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-00-0123.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-00-0123.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-00-0123
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2000/000123.pdf
**body:**

<<<PAGE 1>>>

Transportatio
S. Departmen
400 Seventh Street, S.W.
Washington, D.C.
20590
MAY 1 0 2000
Mr. Richard C. Willard
Ref. No. 00-0123
President
Keehn Service Corporation
99 North 11'h Avenue
Coatesville, Pennsylvania 19320
Dear Mr. Willard:
This responds to your letter, dated April 18, 2000, concerning certain record keeping requirements
applicable to cargo tanks used to transport liquefied compressed gases under the Hazardous Materials
Regulations (HMR; 49 CFR Parts 171-180). Specifically, you ask about the information that will be
required to document hose testing conducted by a Registered Inspector in accordance with
§ 180.407(h)(4) of the HMR.
As currently written, the language related to record keeping in § 180.407(h)(4) is unclear, particularly
the reference to the date of the "original hose assembly test." The inclusion of the term "original" in this
paragraph was inadvertent. To comply with the record keeping requirements in this paragraph, a
Registered Inspector must note the hose identification number of the hose being tested, the date of the
test, and the condition of the hose assembly and piping system tested. We will delete the inadvertent
reference to an "original" hose assembly test in a future rulemaking.
Section 180.416(b) of the HMR requires operators to assure that each cargo tank delivery hose
assembly is permanently marked with a unique identification number and maximum working pressure.
This marking must be applied by July 1, 2000. In addition, after July 1, 1999, new and repaired hose
assemblies must be marked with the month and year that they were pressure tested in accordance with
§§ 178.337-9(b)(7) and 180.416(f). Hose assemblies manufactured or repaired prior to July 1, 1999,
will not have this test marking.
You are correct that, after July 1, 2000, operators must maintain written records documenting pressure
tests for new and repaired hose assemblies. The record must include the date of the test, the signature
of the inspector, the name of the hose owner, the hose identification number, the date of the original
180.407
000123

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delivery hose assembly and test, notes of any defects observed and repairs made, and an indication that
the delivery hose assembly passed or failed the tests or inspections. For hose assemblies manufactured
or repaired prior to July 1, 1999, there will be no date for an original hose assembly test because none
was required before this date. For hose assemblies manufactured after July 1, 1999, the date the hose
assembly was manufactured and pressure tested will be marked on the hose and must be entered on
the written record documenting any subsequent pressure test.
I hope this information is helpful. If you have further questions, please do not hesitate to contact this
office.
Sincerely,
Thorn I. Allan
Thomas G. Allan
Senior Transportation Regulations Specialist
Office of Hazardous Materials Standards

<<<PAGE 3>>>

KEENN
Gorsku
SERVICE CORPORATION
$ 18-0023
99 NORTH 11th AVENUE • COATESVILLE, PA 1932(
PHONE: (610) 384-6851
FAX: (610) 380-0316
April 18, 2000
Mr. Edward T. Mazzullo, Director
United States Department of Transportation
Office of Hazardous Materials Standards
Research and Special Programs Administration
gram Amition
Washington, DC
400 Seventh Street, Southwest
20590
RE: Request for Clarification-Hose Testing and Inspection
Dear Mr. Mazzullo,
MC-330 and 331 compressed gas equipment. We hold valid "U" and "R" certification stamps and
Keehn Service Corporation is currently involved with the fabrication, testing, and repair of
are registered with the Department under CT number 0140.
In preparation for the new hose inspection deadline of July 1, 2000, we are making
modifications to our external visual ("V*) and leakage test ("K") forms. Under the leakage test
requirements as shown in 180.407 (h) (4), we foresee the potential problem of receiving
serial number marked on the delivery hose or hoses. This will be especially true for the propane
customers equipment brought into our shop for this inspection without the original test date and
bobtail trucks with hoses mounted on hose reels on the back deck of the truck. Under the current
regulations as shown in 180.407 (h)(4), if these markings are missing, the hose does not comply
$180.407(h)(4) After July 1, 2000, Registered Inspectors of specification MC-
•
330 and MC331 cargo tanks, and nonspecification cargo tanks authorized under
§173.315 (k) of this subchapter must visually inspect the delivery hose assembly
rejection criteria listed in §180.416 (g). Delivery hose assemblies not
and piping system while the assembly is under leakage test pressure utilizing the
permanently attached to the cargo tank motor vehicle may be inspected
separately from the cargo tank motor vehicle. In addition to a written record of the
conducting the hose test must note the hose identification number, the
inspection prepared in accordance with §180.417 (b), the Registered Inspector
assembly and piping system tested.
date of the original hose aşsembly test, and the condition of the hose
There does not appear to be any relief from the regulation requiring certain original hose
as shown in 180.416 (f), which allows for the retesting of a repaired hose, the date of the original
manufacturer markings. Even under the new and repaired section for delivery hose assemblies
hose assembly and test is required.

<<<PAGE 4>>>

§180.416(f)(3) After July 1, 2000, the operator must complete a recora
inspector, the hose owner, the hose identification number, the date of
documenting the test and inspection, including the date, the signature of the
repairs made, and an indication that the delivery hose assembly passed or failed
original delivery hose assembly and test, notes of any defects observed and
the tests and inspections.
markings, and the operator or owner cannot provide this information to us from his or her files,
What we are proposing is that in the event we find a hose that does not have the required
that we be capable of recertifying the existing hose assembly (if we so choose) by performing the
following operations:
1. Perform a visual inspection of the full length of the outside of the hose assembly and
2. With visual inspection approval, pressure test the hose to 120 percent of hose
reject any assemblies per the rejection criteria as contained in §180.416(g).
Permanently mark the tested assembly with the date of this test, the test pressure
maximum working pressure (generally extruded into the covering of the hose itself)
and a new unique identification number for this assembly. A report of this retestin
is installed with a copy to be retained on file by us as the hose testing company.
sample attached) would be provided to the owner or lessor of the vehicle on which i
issemblies. These assemblies are expensive (a new 1" diameter by 150 foot long propan:
This proceedure would allow for the continued use of otherwise good and safe hose
elivery hose sells for $455.00) and if inspected and tested properly could provide additiona
years of safe delivery for our customers.
reached by telephone at the number shown above or by email at rcwillard@aol.comfor
Please advise at your earliest convenience if you find our suggestion plausible. 1 can be
comments or questions. Thank you for your help in this matter.
Sincerely,
Dill
Richard C. Willard
President
Attachment
Msword DOT-letter-request for ruling-4-00.doc
•

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Keehn Service Corporation
Hose Test Report
Customer:
Customer Location (District ) :
Truck unit number:
Make of hose :
Original Hose Information
Diameter of hose :
Length of hose:
Previous test I.D. or Keehn S.O. number :
Original hose test date:
Original hose test pressure :
New Keehn Identification Number :
New Test Information
New Test Date :
Month:
Day:
Year:
Test Pressure :
(120% of maximum work pressure- 350 Rated hose=420 Lbs.test)
Inspection Criteria
PASS
FAIL
1- Condition Of Hose Assembly:
2- Damage to hose cover that exposes the reinforcement.
3- Wire braid reinforcement has been kinked or flattened so as to
permanently deform the wire braid
4- Soft spots when not under pressure, bulging under pressure
or loose outer covering.
5- Loose or missing bolts or fasteners on bolted hose coupling
assemblies.
Inspector Print:
Inspector Signature :
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