P.1 

OAR Box 1147 

Prepped by Ollie Stewart 

Document Number: 

149) IV-E-22 

Docket Number: 

A-87-11 

Printed 4/22/2008 2:42:55 PM Sheet 149 of 242 
P.2 

y«».^ 

P-97-J1 

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 

ANN ARBOR. MICHIGAN 48105 

OFFICE OF 

AIR AND RADIATION 

JAN 2 9 1988 

MEMORANDUM 

SUBJECT: 

FROM: 

TO: 

THRU: 

SAE Fuel Supply System Subcommittee Meeting 

Kathleen A. Steilen, Chemical Engineer ^ct^J^Mjsy^ Q- jMsdU-y^ 

Standards Development and Support Branch 

r 3>iLn<J PaM***^ 

Docket A-87-11 

Glenn W. Passavant, Senior Project Manage 

Standards Development and Support Branch 

Chester J. France, Chief 

Standards Development and 

On December 1, 1987, I attended a meeting of the SAE Fuel 

Supply System Subcommittee. At this meeting, EPA's onboard 

proposal and its potential impact on the filler neck opening, 

nozzle spout and gas cap were discussed. In addition, SAE's 

plan of action regarding the onboard proposal and their 

recommended practices and standards were also talked about by 

the Subcommittee. For further detail, the meeting's agenda and 

unconfirmed minutes are attached. 

Attachment 
P.3 

/ ^ 

| MEETIN G ANNOUNCEMENT/AGEND A 

\ / 

SUBJECT: SAE Fuel Supply Svstem Subcommittee 1987 Fal l Meeting \ 

MEETING DATE: 

TIME: 

Dec. 1 1987 

10:00 AM 

CONFIRM BY CALLING: M. J. Harrlgan (31^ S^.inso 

DURATION: 3:00 PM if req'd. 

LOCATION: 

or Darlene Crocker C313) 649-067? 

CHAIRMAN: Michael J. H»rriwn 

DESIRED OUTCOMES: 

1) Complete the 5 year review of documents 

2) Establish a plan of action for XJ1433 

3) Establish a plan of action for On-Board Refueling Vapor Recovery 

4) Agree on meeting schedule and next meeting date 

ORDER OF AGENDA ITEMS PEftSOtfe kfrJPONSIftlf.E | PROCESS 

I. 

2. 

3. 

4. 

i 

i 

1 

1 

i 

I 

1 

15. 

I 

1 

1 

16. 

1 

17. 

Introductions 

Approval of Feb. 23, 1987 

Meeting Minutes 

Status of 5 year Review of 

Documents 

- J285 Nozzle Spouts 

- J398 Fuel Filling 

- J829c Cam-on Cap 

- J1114 Threaded Cap 

- J1140 Stage II Emission 

Filler and Spout 

-XJ1433 LP-Gas Interface 

On-Board Refueling Vapor 

Recovery 

Filler opening impact 

Nozzle Spout impact 

Gas Cap impact 

Action plans 

-SAE/EPA Joint Meeting 

-SAE sponsored workshop 

-Actions for affected 

documents 

Old Business 

ISO Nozzle Spout Std. 

Action plan for XJ1433 

New Business 

Next Meeting 

Chairman 

Chairman 

All 

Glenn Moore 

TBD 

Bill Crute 

Bill Crute 

Glenn Moore 

TBD (Carl Taylor) 

All 

All 

All 

All 

All 

Official Recorders 

Glenn Moore 

All 

All 

All 

TIME A LOCATED \ 

Consensus 

Inform & discuss 

Consensus 

Consensus 

Consensus 

Consensus 

\ . 

5 min. 

10 min. 

15 min. 

10 min. 

15 min. 

10 min. 

10 min. 

10 min. 

15 min. 

20 

20 

20 

15 

15 

20 

10 

10 

10 

10 

min 

min 

min 

min 

min 

min 

min 

min 

min 

min 

L987SAE6a 

njh/871105 
' ihtt Engintttring Scdtty 

For Advancing Mobility 

Land S—Air mtd .Spac* 

A Joint Effort 

by Industry, 

Goymmvtt and SAE 

COOMRATIVe BKUNORmQ PROGRAM 

OCTWOrr BRANCH OFFICE 

3001 wear MO MAVOI. sun M2. mov, MCR 4MM TIL: (313) M9-0420 

UNCONFIRMED MINUTES 

December 18 1987 

FUEL SUPPLY SYSTEM SUBCOMMITTEE 

Unconfirmed Minutes of the December 1, 1987 Meeting 

Ramada Inn, 8270 Wickham Rd., Romulus, Michigan 

Members Present: 

M. 

G. 

A. 

W. 

T. 

H. 

A. 

L. 

R. 

L. 

K. 

D. 

M. 

P. 

A. 

C. 

K. 

R. 

J. Harrigan 

E. Moore 

R. Baker 

E. Crute 

Detwiler 

M. Faulconer 

C. Fink 

E. Freeman 

W. Furrow 

W. Gibbs 

A. Kerby 

K. Lawrence 

A. Maher 

R. O'Connell 

R. Podgers 

Taylor 

A. Steilen 

H. Thompson 

Members Absent: 

Chairperson 

V. Chairperson 

J. 

T. 

S. 

R. 

H. 

G. 

R. 

B. 

Al 

A. Aubel 

J. Carr 

Hasko 

L. Kirkpatrick 

J. Silver 

E. Swick Jr. 

L. Murray 

Sutton 

so present: 

R. Thomas Northrup: SAE Committee 

Representative and Staff Engineer 

P. B. Anderson 

S. D. Curran 

J. A. Garbak 

D. R. Sterzinger 

G. Sutcliffe 

M. E. Tokarsky 

E. Ellsworth 

1. APPROVAL OF THE MINUTES OF THE FEBRUARY 23, 1987 MEETING 

The minutes of the meeting of February 23, 1987 were approved as written. 

2. MEMBERSHIP REVIEW 

The current membership list was circulated for attendance and correction. Mr. Harold 

Faulconer is replacing Mr. Walter H. Johnson who retired and Ms. Lois E. Freeman is 

replacing Mr. Stuart W. Martens who retired. Mr. David E. Martin has retired and was 

removed from the list. Mr. R. B. Pochert and Dr. F. L. Voelz were moved to the 

mailing list. Mr. J. C. Hoelle was removed from the list due to inactivity. Finally 

the following individuals have been added as members: A. R. Baker, M. Maher, P. R.. 

O'Connell, K. A. Steilen and R. H. Thompson. Any further additions or corrections 

can be made by direct communication with me at 313-594-1062 or with Tom Northrup at 

SAE at 313-649-0420 or by mail at 3001 W. Big Beaver Rd., Suite 320, Troy, Michigan, 

48084. 

t Or MfTQMOTVf BOMfB-S. » C roi 21 ea 
P.5 

3. STATUS OF FIVE YEAR REVIEW OF DOCUMENTS 

The status of the subcommittee's documents is summarized in Table 1, attached. 

Several of the documents had been let in a status of not approved by ballot to the 

SAE Automotive Emissions Committee because not enough members responded. At the Nov. 

12, 1987 Meeting of that Committee the membership list was reduced by 11 due to 

retirements and inactivity of the members. It was agreed that the standards balloted 

in the past year which were stalled because of insufficient members voting should 

have their ballots recounted using the new membership list. Most were expected to 

pass because none had negative votes. Darlene Crocker of SAE was to supply the 

official recorders notification of the recounts using the new list. 

The Following actions were taken at this meeting regarding our subcommittees 

documents: 

SAE J285 "Gasoline Dispenser Nozzle Spouts" 

This document had too few members voting to pass the Automotive Emissions 

Committee approval. All votes were for approval. We anticipate that the ballot 

will be approved after recounting with the revised membership list. 

One approving voter suggested that the words "specification fuel" be changed 

to "unleaded fuel". It was agreed that this wording change would be made before 

publication because that is the language used in the EPA regulations which 

mandate unleaded fuel. 

It was further suggested that this document be elevated to the status of 

"Standard"; it is now a "Recommended Practice". It was agreed to proceed in this 

direction after having the reaffirmed document published with only the wording 

change discussed above. Mr. Glenn Moore, the official recorder, will chair a 

task force to consider what additional improvements should be made prior to 

seeking approval as a standard. It was decided that extensive changes which 

might be required for On-Board Refueling Vapor Recovery should be included in an 

all new document. 

J398 "Fuel Tank Filler Condition - Passenger Car, Multi Purpose Passenger 

Vehicle and Light Duty Trucks." 

Mr. Kieth Kerby agreed to be the official recorder for this document. 

This document had too few members voting to pass the Automotive Emissions 

Committee approval. All votes were for approval. We anticipate that the ballot 

will be approved after recounting with the revised membership list. 

One af the approving voters suggested that the fill rate mentioned for diesel 

fuel should be changed from 20 gallons per minute to 12 gallons per minute. The 

slower rate is typical of what passenger cars and light duty trucks are designed 

to accept. 20 gallons per minute is more suitable for filling 100 gallon saddle 

tanks of heavy duty trucks. It was decided to leave the wording as is because 

the document states that filling should be done at rates "up to 20 gallons per 

minute" which does not prevent filling at lower rates. 

It was suggested by Mr. Kerby and others that the document be modified after 

it is reaffirmed so that becomes a method for evaluating the fill quality of 

filler pipes and nozzle spout designs in addition to its current use as a method 

for determining the refill capacity of a fuel tank. Mr. Kirby will form a Task 

Force of interested subcommittee members to address this issue. Those interested 

should contact Mr. Kerby at 313-956-1734. 

J829c "Fuel Tank Filler Cap and Cap Retainer" 

This document also had too few members voting to pass the Automotive Emissions 

Committee approval. All votes were for approval. We anticipate that the ballot 

will be approved after recounting with the revised membership list. 

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P.6 

J1114 "Fuel Tank Filler Cap and Cap Retainer - Threaded Pressure-Vacuum Type" 

The 5. year review ballot to this subcommittee had many comments and suggested 

revisions. Mr. Bill Crute reported that a new draft is being prepared. In 

addition to the suggested changes there is a need to develop commonality with 

filler pipes designed by Japanese OEMs which also use the threaded caps. Mr. 

Crute agreed to head up a task force of people interested in this document and 

committed to have a draft ready for review at the next subcommittee meeting. 

J1140 "Filler Pipes and Openings of Motor Vehicle Fuel Tanks" 

Mr. Glenn Moore reported that this document has been reaffirmed and, except 

for sending the artwork to SAE, was ready to publish. 

3. STATUS OF FIVE YEAR REVIEW OF DOCUMENTS ( Continued ) 

XJ1433 "LP-Gas Refueling Interface Requirements for Highway Vehicles" 

Mr. Carl Taylor reported that he has petitioned the National Liquid Petroleum 

Gas Association (NLPGA) to determine if they will support completion of this 

• document' or add to there own standards whatever might be missing for motor 

.vehicle applications. Interest on the part of the OEMs has declined to the point 

where no work is being done on the SAE document. The NLPGA will meet in 

December. 

The NLPGA has developed its own standards for installation and refueling of 

LP-gas tanks on motor vehicles. Mr. Taylor provided a copy of the appropriate 

portion of standard NFPA 58 (attached). He stated that NFPA 58 covered most of 

what was in the XJ1433 except for an ACME fitting. He felt that NLPGA could have 

that added to NFPA 58 and it would completely satisfy the objective behind 

XJ1433. 

It was decided to drop the XJ1433 from further consideration at this time. Mr. 

Harrlgan agreed to forward the most recent input to the XJ1433 document to Mr. 

Robert A. Reid who is a member of NLPGA so that they can benefit from our work 

and include whatever is required to make their standard suffice for automotive 

application. 

Mr. Harrigan pointed out that, with the reorganization of the Automotive 

Council at SAE, it will be very easy for the NLPGA to reactivate work on XJ1433 

should the need arise and the support be forthcoming. The SAE objective is to be 

able to form a task force for a standard and develop a document for publication 

within one year. 

4. ON-BOARD REFUELING VAPOR RECOVERY (ORVR) 

A) Impact on Filler Openings: 

Many companies are working on filler pipe design modifications to meet the 

proposed regulations covered by the EPA NPRM (AMS-FRL-3172-4). The members 

present who are attempting to design vehicle modifications for ORVR felt that 

the standards for filler nozzles must be refined and enlarged to include 

additional parameters. The thrust of this request was not to impose standards 

but rather to have parameters defined by the nozzle industry so that the 

automotive designers could know what to design for. With these additional 

parameters defined the members involved in filler pipe design felt that they 

could design their systems without any further need for standards. 

The following items having to do with the filler pipe portion of the interface 

were mentioned at the February meeting and are still open issues: 

Will leaded fuel be eliminated? If so will the EPA and CARB Regulations 

be revised to eliminate the need for "No-Lead Fuel Only" labeling, 

restrictor opening trap doors and tamper-proofing? 

ORVR filler pipes will have to be compatible with gas can spouts for 

emergency refueling. 

Should provisions be made to assure that ORVR filler pipe openings are 

compatible with fuel additive containers? 

- 3 -
P.7 

B) Impact on Nozzle Spouts: 

The members involved with filler pipe design would like the nozzle spout 

standards improved to achieve the following objectives: 

Reduce the range of nozzle tip positions inside of filler pipes during 

refueling. . 

Define the operating pressure and/or vacuum range for proper nozzle 

operation during refueling and at shutoff. 

Help achieve adequate service life for nozzle seal ORVR systems. 

4) ON-BOARD REFUELING VAPOR RECOVERY (continued) 

B) Impact on Nozzle Spouts: (continued) 

Mr. Kieth Kerby provided a study showing the range of nozzle positions 

possible in 3 Chryler filler pipes ( Attached ). 

Mr. M. J. Harrigan provided test results comparing filling quality versus 

nozzle design for several Ford vehicles ( Attached ). 

Mr. Robert Thompson provided survey data of the in-service diameter and vacuum 

at shutoff for various nozzle designs (Attached). 

Members involved with nozzle manufacture provided copies of various proposals 

for more fully defining the nozzle spout geometry ( Attached ). 

As reported above, Mr. Glenn Moore will establish a task force of interested 

subcommittee members to develop a new standard for nozzle spouts. Those 

Interested should contact Mr. Moore at 513-870-3202. 

EPA has made specific reference to the nozzle spouts and the potential need 

for standardization in their NPRM. EPA has stated that they would like the 

industry to develop its own standards for nozzle spouts and that EPA would 

agree to follow the standard within the test procedures for ORVR. Mr. Glenn 

Moore pointed out that it will not be enough for EPA to simply agree to use 

the standard. EPA will have to write the standard into their rules so that it 

can be enforced on all nozzle manufacturers, nozzle rebuilders and service 

stations. This is essential if the in-use effectiveness of ORVR is to meet 

EPA's expectations. This subcommittee stands ready to cooperate with EPA in 

this endeavor. 

C) Impact on Gas Caps 

No immediate impact is anticipated. Caps as defined by our documents can be 

compatible. It was reported that some hardware designs for ORVR employ 

completely unique gas caps. 

D) Test Procedures 

Mr. Keith Kerby and others expressed an interest in developing a refueling 

test procedure for ORVR evaluation. The test method could include the EPA tests 

plus some customer related features and would be based on SAE J398. 

Mr. Maher expressed an interest in developing an SAE procedure for measuring 

refueling emissions which did not involve refueling in a S.H.E.D. Ms. Stieien 

reported that EPA was very interested in developing alternative test procedures 

which were less costly but which had at least equal effectiveness for measuring 

emissions. 

Mr. Harrigan suggested that a joint EPA/SAE meeting would be required to 

explore how SAE could work with EPA to develop such a test procedure. 

The task force to be formed by Mr. Kerby will deal with developing this 

procedure once the ground rules are established more clearly by EPA. 

4 -
P.8 

E) SAE Plan for Action 

It is essential that EPA and this subcommittee have a clear understanding of 

what EPA expects from SAE developed standards and how EPA will recognized and/or 

enforce an SAE standard. Ms. Stieien agreed to determine from EPA when the EPA 

would agree to hold a joint meeting with this subcommittee to discuss the 

matter. She will report her findings at our next meeting. 

5. OLD BUSINESS' 

ISO Proposed Standard For Nozzle Spouts 

Mr. Glenn Moore reported that ISO has taken no further action since they 

requested approval. It is believed that a number of negative votes and extensive 

comments were received regarding their proposal. 

6. NEW BUSINESS 

No new business was introduced. 

7. NEXT MEETING 

The next meeting will be held during the SAE International Congress at Cobo 

Hall in Detroit. The meeting is scheduled for February 29, 1988 at 1:00 PM in 

Room #--BXly Veteran's Building. 

The Task Forces which are being formed may have meetings before that time. The 

Task Force Chairmen will contact you with their meeting schedules. 

M. 0. Harrigan \j 

1987SAEF7 

mjh/871215 

- 5 
TABLE 1 

SUMMARY STATUS OF DOCUMENTS 

SAE FUEL SUPPLY SYSTEM SUBCOMMITTEE 

Document 

Number 

Document Title Document Type Official Recorder Statu s - October , 1987 

J28S Gasolin e Dispence r Nozzle Spout s Recommende d 

Practice 

G. E. Moore 

O PU Divisio n 

Dover Corperatio n 

Box 405003 

C i nc innat i . Oh i o 

513-870-320 2 

45240-500 3 

Auto . Emission s Comm. 

ballo t was all approval 

but too few voted . 

Ballo t to be recounte d 

using new Committe e 

roster . Uill chang e 

"specificatio n fuel " to 

"unleade d fuel " befor e 

publi cat i on. Uill 

petitio n for statu s as 

"Standard " durin g 1988 . 

J398 Fuel Tank Filler Conditio n - Passenge r Car, Recommended 

Multi Purpos e Passenge r Vehicl e and Light Practic e 

Duty Trucks . 

Kieth A. Kerby 313-956-173 4 

Chrysler Corp. 

12800 Chrysler Dr. 

CIMS 418-36-0 6 

Highland Park, Mich . 4820 3 

Aut o Emission s Committe e 

ballote d in Sept . 1987 ; 

all approve d but to few 

responde d for final 

approval . Ballot to be 

recounte d using new 

Committe e roster . After 

reaffirmatio n work will 

start to include filling 

qualit y requirements . 

J829c Fuel Tank Filler Cap and Cap Retainer Standard Willia m G. Crute 31 7 - 8 2 5 - 3121 Aut o Emission s Committe e 

Stant Mfg. Co. 

1620 Columbia Ave . 

ConnersviIle , Indiana 

ballote d in Sept., 1987 ; 

a ll approve d but to few 

47331 responde d for final 

approval . Ballot to be 

recounte d using new 

Commi ttee roster . 

J1114 Fuel Tank Filler Cap and Cap Retainer 

Threaded Pressure - Vacuum Type 

Recommended 

Practic e 

UiI Ii am G. Crute 

(Same as above ) 

5 year review ballot s 

returne d with comments . 

Revise d text to be 

reviewe d at next meeting . 

Revision s to include 

consistenc y with Japanese 

filler pipe designs . 

J1140 Filler Pi pes 

Fuel Tanks 

and Openings of Motor Vehicle Recommended 

Practice 

Glenn E. Moore 

(Same as above ) 

5 year review ballote d 

and approved . March , 

1987 . Due for publicatio n 

in 1988 Handbook . 

XJ1433 LP-Gas Refueling Interface Requirement s for Draft 

Highway Vehicles Recommended 

P r a c tice 

Unassigne d Droppe d from this subcommitte e due to lack of 

interest and the fact 

that NFPA 58 provide s the 

necessar y standards . 

CO 
P.10 

INSTALLATION OF LP-GAS SYSTEMS 3-87 

t 

c 

(e) The container valve outlet shall be tightly plugged 

and the provisions of 2-2.4.1 shall be complied with during movement of containers within a building. Only 

emergency stairways not generally used by the public 

shall be used and reasonable precautions shall be taken to 

prevent the container from falling down the stairs. 

Freight or passenger elevators may be used when not occupied by the public. 

(f) Piping shall be in accordance with 3-4.2.3. provided, however, that hose shall not be used for connecting 

to containers. 

(g) The fire department shall be advised of each such 

installation. 

3-4.10 Liquid Piped into Buildings o? Structures. 

3-4.10.1 Liquid LP-Gas piped into buildings in accordance with 3-2.6.1(d)(1) shall comply with 3-2.7. 

3-4.10.2 Liquid LP-Gas piped into buildings in accordance with 3-2.6.1(d)(2) from containers located and installed outside the building or structure in accordance 

with 3-2.2 and 3-2.3 shall comply with the following: 

(a) Liquid piping shall not exceed % in. I.P.S. and 

shall comply with 3-2.6 and 3-2.7. If approved by the authority having jurisdiction, copper tubing complying with 

2-4.3.1(c)(1) and with a maximum outside diameter of % 

in. may be used. Liquid piping in buildings shall be kept 

to a minimum, and shall be protected against construction hazards by: 

(1) Securely fastening it to walls or other surfaces to 

provide adequate protection against breakage. 

(2) Locating it so as to avoid exposure to high ambient temperatures. 

(b) A readily accessible shutoff valve shall be located 

at each intermediate branch line where it leaves the main 

line. A second shutoff valve shall be located at the appliance end of the branch and upstream of any flexible 

appliance connector. 

(c) Excess-flow valves complying with 2-3.3.3(b) and 

2-4.5.3 shall be installed in the container outlet supply 

line, downstream of each shutoff valve, and at any point 

in the piping system where the pipe size is reduced. They 

shall be sized for the reduced size piping. 

(d) Hose shall not be used to carry liquid between the 

container and the building, or at any point in the liquid 

line except as the appliance connector. Such connectors 

.shall be as short as practicable and shall comply with 

2-4.6, 3-2.7.8 and 3-2.7.10. 

(e) Hydrostatic relief valves shall be installed in accordance with 3-2.8. 

(0 Provision shall be made so that the release of fuel 

when any section of piping or appliances are disconnected shall be minimized by use of one of the following 

methods: 

(1) An approved automatic quick-closing coupling 

which shuts off the gas on both sides when uncoupled. 

(2) Closing the shutoff valve closest to the point to 

be disconnected and allowing the appliance or applianceson that line to operate until the fuel in the line is consumed. 

3-5 Installation of Appliances. 

3-5.1 Application. 

S-5.1.1 This section includes installation provisions for 

LP-Gas appliances fabricated in accordance with Section 

2-6. 

3-5.1.2 Installation of appliances on commercial 

vehicles is covered in Section 3-9. 

S-5.1.3 With the approval of the authority having 

jurisdiction, unattended heaters used for the purpose of 

animal or poultry production inside structures without 

enclosing walls need not be equipped with an automatic 

device designed to shut off the flow of gas to main burners 

and pilot, if used, in the event of flame extinguishment or 

combustion failure. 

3-5.2 Reference Standards. 

3-5.2.1 LP-Gas appliances shall be installed in accordance with this standard and other national standards 

which may apply. These include: 

(a) NFPA 54, National Fuel Cas Code (ANSI Z223.1). 

(b) NFPA 37, Standard for the Installation and Use of 

Stationary Combustion Engines and Gas Turbines. 

(c) NFPA 501 A. Standard for Firesafety Criteria for 

Mobile Home Installations, Sites and Communities. 

(d) NFPA 50IC. Standard on Firesafety Criteria for 

Recreational Vehicles (ANSI A119.2). 

(e) NFPA 96, Standard for the Installation of Equipment for the Removal of Smoke and Grease-Laden 

Vapors from Commercial Cooking Equipment. 

(f) NFPA 86, Standard for Ovens and Furnaces. 

(g) NFPA 82, Standard on Incinerators, Waste and 

Linen Handling Systems and Equipment. 

(h) NFPA 302, Fire Protection Standard for Pleasure 

and Commercial Motor Craft. 

(i) NFPA 61B, Standard for the Prevention of Fires 

and Explosions in Grain Elevators and Facilities Handling Bulk Raw Agricultural Commodities. 

3-S Engine Fuel Systems. 

3-6.1 Application. 

3-S. 1.1 This section applies to fuel systems using LPGas as a fuel for internal combustion engines. Included 

are provisions for containers, container appurtenances, 

carburetion equipment, piping, hose and Fittings and 

provisions for their installation. This section covers 

engine fuel systems for engines installed on vehicles for 

any purpose, as well as fuel systems for stationary and 

portable engines. It also includes provisions for garaging 

of vehicles upon which such systems are installed. 

See Section 3-9 for systems on vehicles for purposes 

other than for engine fuel. 

3-6.1.2 Containers supplying fuel to stationary engines. 

or to portable engines used in lieu of stationary engines, 

shall be installed in accordance with Section 3-2 {see Section 3-4 for portable engines used in buildings, structures 

or on'roofs under certain conditions). 

1SSS Edition 
P.11 

58-38 LIQUEFIED PETROLEUM CASES 

<c 

c 

c 

3-6.1.3 Containers supplying fuel to engines on 

vehicles, regardless of whether the engine is used to propel the vehicle or is mounted on it for other purposes, 

shall be constructed and installed in accordance with this 

section. 

S-S.1.4 In the interest of safety, each person engaged in 

installing, repairing, filling or otherwise servicing an LPGas engine fuel system shall be properly trained in the 

necessary procedures. 

S-6.2 General Purpose Vehicle Engines Fueled by LPS--S.2.1 This section covers the installation of fuel 

systems supplying engines used to propel vehicles such as 

passenger cars, taxicabs, multipurpose passenger 

vehicles, buses, recreational vehicles, vans, trucks (including tractors, tractor semi-trailer units and truck 

trains) and farm tractors. 

S-6.2.2 Containers. 

(a) Containers designed, fabricated, tested and 

marked (or stamped) in accordance with the regulations 

of the U.S. Department of Transportation (DOT);" or 

the "Rules for Construction of Unfired Pressure Vessels," 

Section VIII, Division I, ASME Boiler and Pressure 

Vessel Code, applicable at the date of manufacture shall 

be used as follows: 

(1) Adherence to applicable ASME Code Case Interpretations and Addenda shall be considered as compliance with the ASME Code. 

(2) Containers fabricated to earlier editions of 

regulations, rules or codes may be continued in use in accordance with 1-2.4.1. (See Appendices B and C) 

(3) Containers which have been involved in a fire 

and showing no distortion shall be requalifled for continued service in accordance with the Code under which 

they were constructed before being reused. 

(4) DOT containers shall be designed and constructed for at least 240 psig (1.6 MPa gauge) service 

pressure. 

(5) DOT specification containers shall be requalified in accordance with DOT regulations. The 

owner of the container shall be responsible for such requalification. (See Appendix B.) 

(6) ASME containers covered in this section shall be 

constructed for a minimum 250 psig (1.7 MPa gauge) 

design pressure except that containers installed in enclosed spaces on vehicles and all engine fuel containers 

for industrial trucks, buses (including school buses) and 

multipurpose passenger vehicles shall be constructed for 

at least a 312.5 psig (2.1 MPa gauge) design pressure. 

(7) Repair or alterations of containers shall comply 

with the Regulations. Rules or Code under which the 

container was fabricated. Field welding on containers 

shall be limited to attachments to nonpressure parts, such 

as saddle pads, wear plates, lugs or brackets applied by 

the container manufacturer. 

"Prior to April 1. 1967. these regulations were promulgated by the 

Interstate Commerce Commission. In Canada, the regulations of the 

Canadian Transport Commission apply. Available from the Canadian 

Transport Commission. Union Station. Ottawa. Canada. 

(8) Containers showing serious denting, bulging, 

gouging or excessive corrosion shall be removed from service. 

(b) Containers shall comply with 3-6.2.2(a) or shall be 

designed, fabricated, tested and marked using criteria 

which incorporate an investigation to determine that they 

are safe and suitable for the proposed service, are recommended for that service by the manufacturer, and are acceptable to the authority having jurisdiction. 

(c) ASME containers shall be marked in accordance 

with 3-6.2.2(c)(1) through (12). The markings specified 

shall be on a metal name plate attached to the container, 

and so located as to remain visible after the container is 

installed. 

(1) Service for which the container is designed; i.e., 

aboveground. 

(2) Name and address of container manufacturer or 

trade name of container. 

(3) Water capacity of container in lb or U.S. 

Gallons. 

(4) Design pressure in psig. 

(5) The wording "This container shall not contain a 

product having a vapor pressure in excess of 215 psig at 

100°F (37.8°C)." 

(6) Tare weight of container fitted for service for 

containers to be filled by weight. 

(7) Outside surface area in sq ft. 

(8) Year of manufacture. 

(9) Shell thickness head thickness . 

(10) OL OD HD . 

(11) Manufacturer's Serial Number. 

(12) ASME Code Symbol. 

(d) LP-Gas fuel containers used on passenger carrying 

vehicles shall not exceed 200 gal (0.8 m1) aggregate water 

capacity. 

(e) Individual LP-Gas containers used on other chan 

E

assenger carrying vehicles normally operating on the 

ighway shall not exceed 300 gal (1 ms) water capacity. 

(0 Containers covered in this section shall be equipped 

for filling into the vapor space and shall not have more 

than two plugged openings. 

(1) The connections for pressure relief valves shall 

be located and installed in such a way as to have direct 

communication with the vapor space of the container and 

shall not reduce the relieving capacity of the relief device. 

(g) The container openings, except those for pressure 

relief valves and gauging devices, shall be labeled to 

designate whether they communicate with the vapor or 

liquid space. Labels may be on valves. 

3-6.2.3 Container Appurtenances. 

(a) Container appurtenances (such as valves and fittings) shall comply with Section 2-3 and 3-6.2.3(a)(1) 

through (6). Container appurtenances subject to working 

pressures in excess of 125 psig (0.9 MPa gauge) but not to 

exceed 250 psig (1.7 MPa gauge) shall be suitable for a 

working pressure of at least 250 psig (1.7 MPa gauge). 

(1) Manual shutoff valves shall be designed to provide positive closure under service conditions and be . 

1863 Edition 
P.12 

INSTALLATION OF LP-GAS SYSTEMS 58-39 

e 

8" 

4 

& 

•a* L 

equipped with an internal excess-flow check valve designed to close automatically at the rated flows of vapor 

or liquid specified by the manufacturers. 

(2) Double backflow check valves shall be of the 

spring loaded type and shall close when flow is either 

stopped or reversed. This valve shall be installed in the fill 

opening of the container for either remote or direct filling. 

(3) Containers shall be fabricated so they can be 

equipped with a fixed liquid level gauge capable of in-

"dicating the maximum permitted filling level in accoidance with 4-5.2.3. Fixed liquid level gauges in the container shall be designed so the bleeder valve maximum 

opening to the atmosphere is not larger than a No. 54 

drill size. If the bleeder valve is installed at a remote location away from the container, the container fixed liquid 

level gauge opening and the remote bleeder valve shall be 

orificed to a No. 54 drill size. 

(4) ASME containers shall be equipped with internal type spring loaded pressure relief valves conforming 

with applicable requirements of UL 132, Safety Relief 

Valves for Anhydrous Ammonia and LP-Gas; Standards 

for Safety Relief Valves of the Factory Mutual Research 

Corporation; or other equivalent pressure relief valve 

standards. The start-to-leak setting of such pressure relief 

valve, with relation to the design pressure of the container, shall be in accordance with Table 2-3.2.3. These 

relief valves shall be plainly and permanently marked 

with (1) the pressure in psig (MPa gauge) at which the 

valve is set to start to leak; (2) the rated relieving capacity 

in cu ft per minute of air at 60°F (15.6°C) and 14.7 psia 

(0.1 MPa absolute); and (3) the manufacturer's name 

and catalog number. Fusible plugs shall not be used. 

(5) DOT containers shall be equipped with internal 

pressure relief valves in accordance with DOT regulations 

(see Appendix D for additional information). Fusible 

plugs snail not be used. 

(6) A float gauge if used shall be designed and approved for use with LP-Gas. 

(7) A solid steel plug shall be installed in unused 

openings. 

(8) Containers fabricated after June 30. 1983, for 

use as engine fuel containers on vehicles shall be 

equipped or fitted with an automatic means to prevent 

filling in excess of the maximum permitted filling density. 

a. An over-filling prevention device may be installed on the container or exterior of the compartment 

when remote filling is used, provided that a double back 

check valve is installed in the container fill valve opening. 

3-6.2.4 Carburetion Equipment. 

(a) Carburetion equipment shall comply with 

3-6.2.4(b) through (e) or shall be designed, fabricated, 

tested and marked using criteria which incorporate an in-

' vestigation to determine that they are safe and suitable 

for the proposed service, are recommended for that service by the manufacturer, and are acceptable to the authority having jurisdiction. Carburetion equipment subject to working pressures in excess of 125 psig (0.9 MPa 

gauge) but not to exceed 25© psig (1.7 MPa gauge) shall 

be suitable for a working pressure of at least 250 psig (1.7 

MPa gauge). 

(b) Vaporizer. 

(1) Vaporizers shall be fabricated of materials 

suitable for LP-Gas service and resistant to the action of 

LP-Gas under service conditions. Such vaporizers shall be 

designed and approved for engine fuel service and shall 

comply with the following: 

a. The vaporizer proper, any part of it or any 

devices used with it which may be subjected to container 

pressure, shall have a design pressure of at least 250 psig 

(1.7 MPa gauge), where workmg pressures do not exceed 

250 psig (1.7 MPa gauge), and shall be plainly and permanently marked at a readily visible point with a design 

pressure of the fuel containing portion in psig (MPa 

gauge). 

(2) The vaporizer shall not be equipped with a fusible plug. 

. (3) Each vaporizer shall have a valve or suitable plug 

located at or near the lowest portion of the section occupied by the water or other heating liquid to permit 

substantially complete drainage. The engine cooling 

system drain or water hoses may serve this purpose, if effective. 

(4) Engine exhaust gases may be used as a direct 

source of heat to vaporize the fuel if the materials of construction of those parts of the vaporizer in contact with 

the exhaust gases are resistant to corrosion from these 

gases and if the vaporizer system is designed to prevent 

pressure in excess of 200 psig (1.4 MPa gauge). 

(5) Devices which supply heat directly to the fuel 

container shall be equipped with an automatic device to 

cut off the supply of heat before the pressure in ehe container reaches 200 psig (1.4 MPa gauge). 

(c) Regulator. The regulator shall be approved and 

can either be part of the vaporizer unit or a separate unit. 

(d) Automatic Shutoff Valve. An approved automatic 

shutoff valve shall be provided in the fuel system as close 

as practical to the inlet of the gas regulator. The valve 

shall prevent flow of fuel to the carburetor when the 

engine is not running even if the ignition switch is in the 

"on" position. Atmospheric type regulators (zero governors) shall not be considered as automatic shutoff valves 

for this purpose. 

(e) Fuel Filter. Fuel filters if used shall be approved 

and can be either a separate unit or part of a combina-

• tion unit. 

3-6.2.5 Piping, Hose and Fittings. 

(a) Pipe. 

(1) Pipe shall be wrought iron or steel (black or galvanized), brass, or copper and shall comply with the 

following: 

a. Wrought iron pipe; ANSI B36.10. WroughtSteel and Wrought Steel Pipe. 

b. Steel pipe; ANSI B125.1. Specification for Pipe. 

Steel, Black and Hot-Dipped, Zinc-Coated Welded and 

Seamless Steel Pipe (ASTM A 53). 

c. Steel pipe; ANSI B125.30. Specification for 

Seamless Carbon Steel Pipe for High-Temperature Service (ASTM A 106). 

d. Steel pipe: ANSI B125.2. Specification for Pipe, 

Steel, Black and Hot-Dipped Zinc-Coated (Galvanized) 

Welded and Seamless, for Ordinary Uses (ASTM A 120). 

1683 Edition 
P.13 

58-40 LIQUEFIED PETROLEUM GASES 

c 

c 

e. Brass pipe; ANSI H27.1. Specification for 

Seamless Red Brass Pipe, (ASTM B 43). 

f. Copper pipe; ANSI H26.1, Specification for 

Seamless Copper Pipe. Standard Sizes (ASTM B 42). 

(2) For LP-Gas vapor in excess of 125 psig (0.9 MPa 

gauge) or for LP-Gas liquid, the pipe shall be Schedule 

80 or heavier. For LP-Gas vapor at pressures of 125 psig 

(0.9 MPa gauge) or less, the pipe shall be Schedule 40 or 

heavier. 

(b) Tubing. 

(1) Tubing shall be steel, brass or copper and shall 

comply with the following: 

a. Steel tubing: ASTM A 539, Specification for 

Electric-Resistance-Welded Coiled Steel Tubing for Gas 

Fuel Oil Lines, with a minimum wall thickness of 0.049 

in. 

b. Copper tubing; Type K or L. ANSI H23.1. 

Specification for Seamless Copper Water Tube (ASTM B 

88). 

c. Copper tubing; ANSI H23.5. Specification for 

Seamless Copper Tube for Air Conditioning and 

Refrigeration Field Service (ASTM B 280). 

d. Brass tubing; ANSI H36.I, Specification for 

Seamless Brass Tube (ASTM B 1351. 

(c) Pipe and Tube Fittings. 

(1) Cast iron pipe fittings such as ells. tees, crosses, 

couplings, unions, flanges or plugs shall not be used. Fittings shall be steel, brass, copper, malleable iron or ductile iron and shall comply with the following: 

a. Pipe joints in wrought iron, steel, brass or copper pipe may be screwed, welded or brazed. Tubing 

joints in steel, brass or copper tubing shall be flared, 

soldered or brazed or made up with approved gas tubing 

fittings. 

(i) Fittings used with liquid LP-Gas. or with vapor 

LP-Gas at operating pressures over 125 psig (0.9 MPa 

gauge), where working pressures do not exceed 250 psig 

(1.7 MPa gauge), shall be suitable for a working pressure 

of at least 250 psig (1.7 MPa gauge). 

(ii) Fittings for use with vapor LP-Gas at pressures 

in excess of 5 psig (34.5 kPa gauge) and not exceeding 

125 psig (0.9 MPa gauge) shall be suitable for a working 

pressure of 125 psig (0.9 MPa gauge). 

(iii) Soldering or brazing filler material shall have 

a melting point exceeding 1.000°F (538°C). 

(d) Hose. Hose Connections and Flexible Connectors. 

(1) Hose, hose connections and flexible connectors 

(see definition) used for conveying LP-Gas liquid or vapor 

at pressures in excess of 5 psig (34.5 kPa gauge) shall be 

fabricated of materials resistant to the action of LP-Gas 

both as liquid and vapor, and be of wire braid reinforced 

construction. The wire braid shall be stainless steel. The 

hose shall comply with the following: 

a. Hose shall be designed for a working pressure of 

350 psi (240 MPa) with a safetv factor of 5 to 1 and be 

continuously marked "LP-GAS." "PROPANE." "350 PSI 

WORKING PRESSURE" and the manufacturers name 

or trademark. Each installed piece of hose shall contain 

at least one such marking. 

b. Hose assemblies after the application of connections shall have a design capability of withstanding a 

pressure of not less than 700 psig (4.8 MPa gauge). If a 

test is made, such assemblies shall not be leak tested at 

pressures higher than the working pressure [350 psig (2.4 

MPa gauge) minimum] of the hose. 

(2) Hose used for vapor service at 5 psig (34.5 kPa 

gauge) or less shall be constructed of material resistant to 

the action of LP-Gas. 

(3) Hose in excess of 5 psig (34.5 kPa gauge) service 

pressure and quick connectors shall have the approval for 

this application of any of the authorities listed in 1-3.1.1. 

3-6.2.6 Installations of Containers and Container Appurtenances. 

(a) Containers shall be located in a place and in a 

manner to minimize the possibility of damage to the container and its fittings. Containers located in the rear of 

the vehicles, when protected by substantial bumpers, 

shall be considered in conformance with this requirement. In case the fuel container must be installed near 

the engine or exhaust system, it shall be shielded against 

direct heating. 

(b) Container markings shall be readable after a container is permanently installed on a vehicle. A portable 

lamp and mirror may be used when reading markings. 

(c) Container valves, appurtenances and connections 

shall be adequately protected to prevent damage due to 

accidental contacts with stationary objects or from stones, 

mud or ice thrown up from the ground, and from 

damage due to overturn or similar vehicular accident. 

Location on the container where parts of the vehicle furnish the necessary protection or a fitting guard furnished 

by the manufacturer of the container may meet these requirements. 

(d) Containers shall not be mounted directly on roofs 

or ahead of the front axle or beyond the rear bumper of 

the vehicles. So as to minimize the possibility of physical 

damage, no part of a container or its appurtenances shall 

protrude beyond the sides or top of the vehicle at the 

point where it is installed. 

(e) Containers shall be installed with as much road 

clearance as practicable. This clearance shall be 

measured to the bottom of the container or the lowest fitting, support or attachment on the container or its housing, if anv. whichever is lowest, as follows [see Figure 

3-6.2.6(e)): 

(1) Containers installed between axles shall comply 

with 3-6.2.6(e)(3) or be not lower than the lowest point 

forward of the container on: 

a. the lowest structural component of the body; 

b. the lowest structural component of the frame or 

subframe if any; 

c. the lowest point on the engine; 

d. the lowest point of the transmission (including 

the clutch housing or torque converter housing as applicable) [Pan 1. Figure 3-6.2.6(e)]. 

(2) Containers installed behind the rear axle and extending below the frame shall comply with 3-6.2.6 (e)(3) 

or be not lower than the. lowest of the following points 

and surfaces. 

a. Not lower than the lowest point of a structural 

component of the body, engine, transmission (including 

1983 Edition 
P.14 

INSTALLATION OF LP-GAS SYSTEMS 58-41 

C 

clutch housing or torque converter housing, as applicable), forward of the container. Also not lower than 

lines extending rearward from each wheel at the point 

where the wheels contact the ground directly below the 

center of the axle to the lowest and most rearward structural interference (i.e. bumper, frame, etc.). [Part 2. 

Figure 3-6.2.6(e).] 

b. Where there are two or more rear axles the 

projections shall be made from the rearmost one of them. 

(3) Where an LP-Gas container is substituted for 

the fuel container installed by the original manufacturer 

of the vehicle (whether or not that fuel container was for 

LP-Gas), the LP-Gas container shall either fit within the 

space in which the original fuel container was installed or 

comply with 3-6.2.6(e)(l) or (2). 

(0 Fuel containers shall be securely mounted to prevent jarring loose and slipping or rotating, and the 

fastenings shall be designed and constructed to withstand 

without permanent visible deformation static loading in 

any direction equal to four times the weight of the container filled with fuel. 

(g) Welding for the repair or alterations of containers 

shall comply with 3-6.2.2(a)(7). 

(h) Main shutoff valves on a container for liquid and 

vapor shall be readily accessible without the use of tools, 

or other means shall be provided to shut off the container 

valves. 

(i) Pressure relief valve installations shall comply with 

the following requirements: 

Front 

(1) The relief valve discharge on fuel containers on 

vehicles other than passenger cars shall be directed upward within 15 degrees of vertical so that any gas released 

will not impinge upon containers or part of the vehicle, or 

on adjacent persons or vehicles or discharge inside of the 

passenger compartment. On passenger cars, the relief 

valve discharge on fuel containers shall be directed upward within 45 degrees of vertical so that gas may not be 

discharged inside of the passenger or luggage compartment and so that any gas released will not impinge upon a 

container, part of the vehicle or on an adjacent vehicle. 

(2) Pressure relief valve discharge lines shall be 

metallic and have a melting point over 1500°F (816°C). 

Discharge lines and adaptors shall be sized, located and 

secured so as to minimize the possibility of physical 

damage and to permit required pressure relief valve 

discharge capacity. When the relief valve discharge must 

be piped away from the container, the relief valve shall be 

fitted with an approved break-away type adaptor or designed such that in the event of excessive stress the piping 

will break away without impairing the function of the 

relief valve. Flexible metal hose or tubing used shall be 

able to withstand the pressure from the relief vapor 

discharge when the relief valve is in full open position. A 

means shall be provided (such as loose fitting caps) to 

minimize the possibility of the entrance of water or dirt 

into either the relief valve or its discharge piping. The 

protecting means shall remain in place except when the 

relief valve operates. In this event, it shall permit the 

relief valve to operate at required capacity. 

Parti Plane of lowest structural component, etc. 

forward of container. 

Front Rear 

Part 2 

Figure 3-6.2.6(e) Container Installation Clearances 

1966 Edition 
P.15 

LIQUEFIED PETROLEUM GASES 

c (3) Relief valve adaptors installed directly in the 

relief valve to deflect the flow upward shall be metallic 

and have a melting point over 7008F (371 °C). 

3--S.2.7 Containers Mounted in the Interior off 

Vehicles. 

(a) Containers mounted in the interior of vehicles shall 

be installed so that any LP-Gas released from container 

appurtenances due to operation, leakage or connection of 

the appurtenances will not be in an area communicating 

directly with the driver or passenger compartment or with 

any space containing radio transmitters or other spark 

producing equipment. This may be accomplished by 

S-6.2.7(a)(l) or (2). 

(1) Locating the container, including its appurtenances, in an enclosure which is securely mounted 

to the vehicle, is gastight with respect to driver or passenger compartments and to any space containing radio 

transmitters or other spark producing equipment, and 

which is vented outside the vehicle. 

a. The luggage compartment (trunk) of a vehicle 

may constitute such an enclosure provided it meets all 

these requirements. 

(2) Enclosing the container appurtenances and their 

connections in a structure which is securely mounted on 

the container, is gastight with respect to the driver or passenger compartments or with any space carrying radio 

transmitters or other spark producing equipment, and 

which is vented to outside the vehicle. 

(b) Fuel containers shall be installed and fitted so that 

no gas from fueling and gauging operations can be released inside of the passenger or luggage compartments, 

by permanently installing the remote filling connections 

(double backflow check valve), see 3-6.2.3(a)(2). and 

fixed liquid level gauging device to the outside of the vehicle. 

(c) Container pressure relief valve installation shall 

comply with 3-6.2.6(i). 

(d) Enclosures, structures, seals and conduits used to 

vent enclosures shall be fabricated of durable materials 

and be designed to resist damage, blockage or dislodgement through movement of articles carried in the vehicle 

or by the closing of luggage compartment enclosures or 

vehicle doors, and shall require the use of tools for 

removal. 

3-6.2.8 Pipe and Hose Installation. 

(a) The piping system shall be designed, installed, supported and secured in such a manner as to minimize the 

possibility of damage due to expansion, contraction, 

vibration, strains or wear, and to preclude any working 

loose while in transit. 

(b) Piping (including hose) shall be installed in a protected location. If outside, piping shall be under the vehicle and below any insulation or false bottom. Fastening 

or other protection shall be installed to prevent damage 

due to vibration or abrasion. At each point where piping 

passes through sheet metal or a structural member, a 

rubber grommet or equivalent protection shall be installed to prevent chafing. 

(c) Fuel line piping which must pass through the floor 

of a vehicle shall be installed to enter the vehicle through 

the floor directly beneath, or adjacent to, the container. 

If a branch line is required, the tee connection shall be in 

the main fuel line under the floor and outside the vehicle. 

(d) Exposed parts of the piping system shall either be 

of corrosion-resistant material or adequately protected 

against exterior corrosion. 

(e) Piping systems, including hose, shall be tested and 

proven free of leaks at not less than normal operating 

pressure. 

(f) There shall be no fuel connection between a tractor 

and trailer or other vehicle units. 

(g) A hydrostatic relief valve shall be installed in each 

section of piping (including hose) in which liquid LP-Gas 

can be isolated between shutoff valves so as to relieve to a 

safe atmosphere the pressure which could develop from 

the trapped liquid. This hydrostatic relief valve shall have 

a pressure setting not less than 400 psig (2.8 MPa gauge) 

or more than 500 psig (3.5 MPa gauge). 

3-6.2.9 Equipment Installation. 

(a) Installation shall be made in accordance with the 

manufacturer's recommendations and. in the case of 

listed or approved equipment, it shall be installed in accordance with the listing or approval. 

" (b) Equipment installed on vehicles shall be considered a part of the LP-Gas system on the vehicle and 

shall be protected against vehicular damage in accordance with 3-6.2.6(a). 

(c) The gas regulator and the approved automatic 

shutoff valve shall be installed as follows: 

(1) Approved automatic pressure reducing equipment, properly secured, shall be installed between the 

fuel supply container and the carburetor to regulate the 

pressure of the fuel delivered to the carburetor. 

(2) An approved automatic shutoff valve shall be 

provided in the fuel system in compliance with 

3-6.2.4(d). 

(d) Vaporizers shall be securely fastened in position. 

3-6.2.10 Marking. Each over-the-road general purpose vehicle powered by LP-Gas shall be identified with a 

weather-resistant diamond shaped label located on an exterior vertical or near vertical surface on the lower right 

rear of the vehicle (on the. trunk lid of a vehicle so 

equipped, but not on the bumper of any vehicle) inboard 

from any other markings. The label shall be approxiFigure S-6.2.10 Example of Vehicle Identification Marlsing 

1963 Edition 
P.16 

INSTALLATION OF LP-GAS SYSTEMS 

\x 

K 

mately 4-% in. (120 mm) long by 3-V^Jn. (83 mm) high. 

The marking shall consist of a border and the letters 

"PROPANE" [1 in. (25 mm) minimum height centered 

in the diamond] of silver or white reflective luminous 

material on a black background. (See Figure 3-6.2.10.) 

S-S.S Industrial (and Forldift) Trucks Powered by 

LP-Gac. 

3-6.3.1 This subsection applies to LP-Gas installation 

on industrial trucks (including forklift trucks) both to 

propel them and to provide the energy for their materials 

handling attachments. LP-Gas fueled industrial trucks 

shall comply with NFPA 505, Fire Safety Standard for 

Powered Industrial Trucks. 

3-6.3.2 ASME and DOT fuel containers shall comply 

with 3-6.2.2 and 3-6.2.3(a)(l) through (7). 

(a) Portable containers may be designed, constructed 

and fitted for filling in either the vertical or horizontal 

position, or if of the portable universal type [see 

2-3.4.2(c)(2)], in either position. The container shall be 

in the appropriate position when filled or, if of the portable universal type, may be loaded in either position, 

provided: 

(1) The fixed level gauge indicates correctly the 

maximum permitted filling level in either position. 

(2) The pressure relief valves are located in, or connected to, the vapor space in either position. 

3-6.3.3 The container relief valve shall be vented upward within 45 degrees of vertical and otherwise comply 

with 3-6.2.6(i). 

3-6.3.4 Gas regulating and vaporizing equipment shall 

comply with 3-6.2.4(b)(l) through (5) and 3-6.2.4(c), (d) 

and (e). 

3-6.3.5 Piping and hose shall comply with 3-6.2.5(a) 

through (d) except that hose 60 in. (1.5 m) in length or 

less need not be of stainless steel wire braid construction. 

3-6.3.6 Industrial trucks (including forklift trucks) 

powered by LP-Gas engine.fuel systems shall comply as to 

operation with NFPA 505. Fire Safety Standard for 

Powered Industrial Trucks, and with the following: 

(a) Refueling of such trucks shall be accomplished as 

follows: 

(1) Trucks with permanently mounted containers 

shall be refueled out-of-doors. 

(2) Exchange of removable fuel containers 

preferably should be done out-of-doors, but may be done 

indoors. If done indoors, means shall be provided in the 

fuel piping system to minimize the release of fuel when 

containers are exchanged, using one of the following 

methods: 

a. Use of an approved quick-closing coupling (a 

type closing in both directions when uncoupled) in the 

fuel line, or 

b. Closing the shutoff valve at the fuel container, 

and allowing the engine to°run until the fuel in the line is 

exhausted. 

(b) LP-Gas fueled industrial trucks may be used in 

buildings or structures as follows: 

(1) The number of fuel containers on such a truck 

shall not exceed two. 

(2) With the approval of the authority having 

jurisdiction, industrial trucks may be used in buildings 

frequented by the public, including the times when such 

buildings are occupied by the public. The total water 

capacity of the fuel containers on an individual truck 

shall not exceed 105 lb (48 kg) [nominal 45 lb (20 kg) LPGas capacity]. 

(3) Trucks shall not be parked and left unattended 

in areas occupied by or frequented by the public except 

with the approval of the authority having jurisdiction. If 

so left, the fuel system shall be checked to be sure there 

are no leaks and that the container shutoff valve is closed. 

(4) In no case shall industrial trucks be parked and 

left unattended in areas of excessive heat or near sources 

of ignition. 

3-6.4 General Provisions for Vehicles Having Engines 

Mounted on Them. 

3-6.4.1 This subsection includes provisions for the installation of equipment on vehicles to supply LP-Gas as a 

fuel for engines mounted on these vehicles. The term 

"vehicles" includes any readily portable mobile unit, 

whether the engine is used to propel it or is mounted on it 

for other purposes. 

3-6.4.2 Gas vaporizing, regulating and carburetion 

equipment to provide LP-Gas as a fuel for engines shall 

be installed in accordance with 3-6.2.8 and 3-6.2.9. 

(a) In the case of industrial trucks (including forklift 

trucks) and other engines on vehicles operating in 

buildings other than those used exclusively to house 

engines, an approved automatic shutoff valve shall be 

provided in the fuel system in compliance with 

3-6.2.4(d). 

(b) The source of air for combustion shall be completely isolated from the driver and passenger compartment, ventilating system or air conditioning system on the 

vehicle. 

3-6.5 Engine Installation Other than on Vehicle. 

3-6.5.1 Stationary engines and gas turbines installed ih 

buildings, including portable engines used in lieu of. or 

to supplement, stationary engines, shall comply with 

NFPA 37. Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines, and the 

applicable provisions of Chapters 1 and 2 and Section 3-2 

of this standard. 

3-6.5.2 Portable engines, except as provided in 3-6.5.1, 

may be used in buildings only for emergencies and the 

following shall apply: 

(a) The capacity of the LP-Gas containers used with 

such engines and the equipment used to provide fuel to 

them shall comply with the applicable provisions of Section 3-4. 

(b) An approved automatic shutoff valve shall be provided in the fuel system in compliance with 3-6.2.4(d). 

Atmospheric type regulators (zero governors) used for 

portable engines of 12 horsepower or less with magneto 

ignition and used exclusively outdoors shall be considered 

as in compliance with 3-6.2.4(d). 

1966 Edition 
4E JII40 

USKY IA 

ACQ WHEATON A 200 

>W 11-AP 

CO WHEATON A3003 

JTERFERES WITH TUBE) 

SO.Z (INTERFERES WITH TUBE) 

OPW I I -V(lNTERFERES WITH TUBE) 

EMCO WHEATON SK58 

HUSKY l + X 

ISO.I 

%

r-^' »» . ' I988"D'4'N' TRUCK 

E 
;AE JII40 

IUSKY IA 

:MCO WHEATON A2000- 5 

)PWII-AP 

MCO WHEATON A3003 

INTERFERES WITH TUBE) 

OPW 11-v (INTERFERES WITH TUBE) 

ISO.2(INTERFERES WITH TUBE) 

EMCO WHEATON SK58 

HUSKY l+X 

I SO. I 

»—»' 1988 B VAN 
19881715:; CAH 

EMCO-WHEATOK) A400O 

4SK5 8 

MCO-WHEATOM A3003 

IU1ERFCKCS u'llH TUBE) 

•6FWli:Af> 

HU5KV l+X 

EMCO-WHEATOKJ A200O 

(INTERFERES WITH TUBE) 

CPW ll-V 

HUSIC7 5TD (I A 

t—ZAE J 114-0 

v./ ' 

• ,'•" . 

/ 
MOZZtE DESICIt VS PIPE PESIGM Mi l TEST COHPAIM SOM 

Car I(na 

Nozzle 

type 

peratu 

int eT ia il 

f fl.g.T 

te | Preauture Shutofll'l'mll^ f | fill Qualit. y 

JO. 

Shutoff Ouality Rate 

(GPM) 

T 0 P P I U G_ p F f 

Mrs t Shutoff Second Shutoff 

1987 Continental 

1987 Lynx S/U 

AUO Teapo 

1987 T-Bird 

1987 Crown Vic. 

Grande Marquis 

Sedan 

| OPU 

| Eaco 

I OPU 

I Eaco 

| OPU 

I Eaco 

Eaco 

expl . 

OPU 

Eaco 

OPU 

1987 Crown Vic. 

Grande Marquis 

S/wagon 

1987 Lincoln 

Town Car 

I Eaco 

I OPU 

I Eaco 

I OPU 

I Eaco 

I

Eaco 

O*P » • 

| none 

none 

none 

Once after first 

gal Ion or two 

Every gallon or 

two 

k or 5 tiaes till 

2 gal Ions is In 

Constant shutoff 

and spray 

Constant shutoff 

and spray 

Constant shutoff 

and spray 

| Good 

S-10 drops 

•ist at start 

Good 

Slight spray 

Good 

Good 

Good 

Good 

Heavy spray 

fuel in cup 

Poor 

OK after 

first 2 gal. 

Poor; slowed 

to 7.5 GPN 

Poor; slowed 

to 7.S GPN 

OK after 

fI rat gal Ion 

Poor 

Good 

| Clean 

2 drops on hand 

SI Ight surge 

no drops 

SIIght surge 

no drops 

Splash or spill 

2 to 16 ox. out 

Splash 3 inches 

2 oz. out 

Spray 12 inches 

2 large drops 

Spray and spit 

4 ox. out 

Spray plus 

aeveral drops 

Spray up to 

6 Inches 

t\ foot spray 

heavy loss 

1 inch spray 

B 7.5 GPN 

1 Inch spray 

a 7.S GPN 

Surge in cup 

Spray and surge 

Spray 3 drops 

| Clean 

1

2 big drops 

past hand 

I

SIight surge 

no drops 

I

Slight surge 

no drops 

I Clean 

I Clean 

I Clean 

I Clean 

I Surge In cup 

I

Surge; 1/2 oz. 

out 

I

Surge; 1/2 oz. 

out 

I Slight surge 

I Clean 

I SIIght surge 

I Slight surge 

I Sllght surge 

| Clean 

1 drop 

hot on hand 

Slight surge 

no drops 

Slight surge 

no drops 

Surge; 1 oz. out 

Surge; tspn out 

Clean to slight 

surge 

Surge in cup 

Surge in cup 

Surge; 1/2 oz. 

out 

Surge; 1/2 oz. 

out 

Cl ean 

Cl ean 

Slight aurge 

Clean 

C lean 

f I It-data 

ajh/871129 
P.21 

Appendix C 

FIELD SURVEY OF SERVICE STATION NOZZLES 

Nozzle Shut-Off Signal, Vacuum: X= 7.18 kPa <T = 0.958 kPa 

(Full fill rate) 

Nozzle Diameter: X= 0.814 in. or = 0.005 in. 

(SAE Recommendation: 13/16 in (0.8125 to 0.840)) 

Vacuum Signal Nozzle Diameters 

Service Station (kPa) (in.) 

V 

Amoco 

OPW 

Shell (1) 

OPW, Husky 

Bonded 

OPW 

United 

OPW, Husky 

Shell (2) 

Husky 

Mobil 

Viking 

Clark 

Emco Wheaton 

Shell (3) 

OPW 

Marathon 

EMCO, Husky 

Checker 

OPW 

8.25 

9.0 

. 7.5 

6.5 

7.0 

5.25 

7.5 

7.5 

8.0 

•7.0 

7.0 

6.5 

6.0 

7.5 

9.0 

8.0 

5.75 

6.5 

6.25 

7.5 

7.0 

7.5 

.0.816 . 0.815 . 0.812 

0.813 0.815 0.812 

0.812 0.815 0.812 

0.818 0.813 

0.813 

0.814 

0.813 0.815 

0.813 0.815 

0.813 0.810 

0.833 0.812 

0.828 0.832 

0.825 0.810 

0.815 0.808 

0.813 0.812 

0.814 0.812 

0.815 

0.813 0.810 

0.810 

0.812 

0.810 0.820 

0.811 0.816 

0.812 0.811 0.815 

0.817 0.813 0.814 

0.812 0.813 

Note: Each pressure represents three trials for a nozzle. It should 

be noted there was no measurable variation between trials for 

each nozzle. 

L 
.09 3 ±.01 0 

.82 4 ±.01 5 DIA 

1/32 X 45° CHAMFER 

TO REMOVE SHARPNESS 

PROPOSED SPOUT 

SAE FUEL SYSTEMS 

SUB-COMMITTEE 

I, I/-S» »I— t ar-tt—r-» < rs m 
£ _ r» 

UiUOD 

HUioa (fli— 

> H - • 

Ul—oc. 3ID 

U 0 2 

u§i 

<U) 

(0 
P.24 
Docket A-87-11 

Subcategory IV-E 

EPA Memoranda of Meetings with Outside Persons 

and of Telephone Conversations with Outside Persons 

Number Description 

IV/-E-11 Note from Robert E. McGaughy, U.S EPA, ORD, 

containing reports handed out from meetings between 

MVMA and EPA, October 26, 1987. 

IV-E-12 Memorandum "Meeting with Reps of API regarding Gas 

; Volatility and Onboard proposals," to the Docket, 

j from Ralph Colleli, November 18, 1987. 

/ IV-E-13 Memorandum "Stage II Emptying Losses," to the 

Docket, from John F. Anderson, U.S. EPA, December 

14, 1987. 

IV-E-14 Memorandum "Meeting with API Regarding Onboard 

NPRM," to the Docket, from Kathleen A. Steilen, U.S. 

EPA, December 7, 1987. 

IV-E-15 Memorandum "EPA/NHTSA Meeting Regarding Onboard 

Refueling Emission Controls," to the Docket, from 

Glenn W. Passavant, U.S. EPA, November 23, 1987. 

IV-E-16 Memorandum "EPA/IIHS Meeting Regarding Onboard 

Refueling Emission Controls," to the Docket, from 

Glenn W. Passavant, U.S. EPA, November 23, 1987. 

IV-E-17 Memorandum "Meeting with Glenn Moore, OPW," to the 

Docket, from John W. Mueller, U.S. EPA, January 5, 

1988. 

IV-E-18 Memorandum "Telephone Conversation with Mr. Hugh 

Shannon and Mr. George Musser of Exxon," to the 

Docket, from John F. Anderson, U.S EPA, January 20, 

1988. 

. IV-E-19..-.:^ Memorandum "Meeting with API and MVMA on the Joint 

Proposal on Vapor Recovery," with attachments, to 

the Docket, from John F. Anderson, U.S. EPA, January 

20, 1988. 

j IV-E-20 Memorandum "EPA/FORD Meeting Regarding Onboard 

v' Control Systems," to the Docket, from Glenn W. 

Passavant, U.S. EPA, January 20, 1988. 

^5