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Staff Instruction (SI)
No. DAN-001

Inspection Procedures for Highway Tanks Used on Aerodrome Property

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Internal documents and documents hyperlinked and stored on
Transport Canada's intranet mentioned in this document
are available upon request. See Contact Office below.

Issuing Office: Standards
Activity Area: Oversight SI No.: DAN-001
File No.: 2204-385 Issue No: 01
RDIMS No.: 4010856-V4 Effective Date: 2008-04-09

1.0  INTRODUCTION

1.1  Purpose

The purpose of this Staff Instruction (SI) is to provide inspection procedures to Civil Aviation Safety Inspectors—Dangerous Goods (CASI-DG) when doing oversight of highway tanks operating on aerodrome property.

1.2  Applicability

This document is applicable to CASI-DGs delegated by the Minister of Transport under section 10 of the Transportation of Dangerous Goods Act, 1992 (TDG Act, 1992) to inspect highway tanks operating on aerodrome property.

1.3  Description of Changes

Not applicable.

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2.0  REFERENCES AND REQUIREMENTS

2.1  Reference Documents

It is intended that the following reference materials be used in conjunction with this document:

  1. Transportation of Dangerous Goods Act, 1992 (TDG Act, 1992);

  2. Transportation of Dangerous Goods Regulations (TDGR);

  3. Canadian Standards Association (CSA) Standard CAN/CSA-B620-03—Highway Tanks and Portable Tanks for the Transportation of Dangerous Goods, 1987, 1998, published in July 2003, and amended in February 2006;

  4. CSA Standard CAN/CSA-B621-03—Selection and Use of Highway Tanks, Portable Tanks, Cargo Compartments, and Containers for the Transportation of Dangerous Goods, Classes 3, 4, 5, 6.1, 8, and 9, published in July 2003, and amended in May 2004 and February 2006;

  5. Transport Canada Publication, TP 6672—TDG Directorate Inspector Manual;

  6. TDG Directorate self-study CD, entitled “Means of Containment for Dangerous Goods for Aviation Inspectors.”

2.2  Cancelled Documents

Not applicable. 

2.3  Definitions and Abbreviations

  1. Definitions and abbreviations supporting this document may be found in the TDG Act, 1992 and TDGR, the CAN/CSA B620 or CAN/CSA B621.

  2. Where a term or abbreviation is defined in more than one document, including the TDG Act, 1992 and TDGR, the definition provided by the TDG Act, 1992 or TDGR takes precedence.

  3. The following definitions and abbreviations are used in this document:

    1. CAN/CSA B620: the standard for Highway Tanks and Portable Tanks for the Transportation of Dangerous Goods, as amended from time to time and published by the Canadian Standards Association (CSA);

    2. CAN/CSA B621: the standard for the Selection and Use of Highway Tanks, Portable Tanks, Cargo Compartments, and Containers for the Transportation of Dangerous Goods, Classes 3, 4, 5, 6.1, 8, and 9 as amended from time to time and published by the Canadian Standards Association (CSA);

    3. CASI-DG: Civil Aviation Safety Inspector—Dangerous Goods;

    4. CSA: Canadian Standards Association;

    5. DOT: United States Department of Transport;

    6. Highway tanks operating solely on aerodrome property: for the two-year duration of this pilot project, those tanks that are not currently licensed for the highway in the jurisdiction in which the aerodrome is located.

    7. MC: United States Motor Carrier;

    8. NACIS: National Aviation Company Information System;

    9. NASD: National Aerodrome Safety Database;

    10. PG: packing group;

    11. TC: Transport Canada;

    12. TDG Act, 1992: Transportation of Dangerous Goods Act, 1992;

    13. TDGR: Transportation of Dangerous Goods Regulations.
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3.0  BACKGROUND

  1. The TDG Act, 1992andTDGR require dangerous goods in transport to be contained in a safe means of containment. A safe means of containment prevents the release of dangerous goods that could constitute a danger to life, health, property or the environment under normal conditions of transport. A means of containment is a container or packaging, or any part of a means of transport that is, or may be, used to contain goods.

  2. The TDGR may refer to other regulations or standards for the manufacturing, selection and use of a means of containment for dangerous goods. If any inconsistencies exist between a standard and the TDG Act, 1992 or TDGR, the TDG Act, 1992 and TDGR prevail.

  3. Regulations and standards may be specific to a class of dangerous goods, means of containment or mode of transport. There are two kind of standards:

    1. design and manufacture; and

    2. selection and use.

  4. Several factors influence the selection of a means of containment, such as:

    1. class of dangerous goods;

    2. type and size of the means of containment;

    3. mode of transport; and

    4. destination.

  5. To determine which means of containment a person can select and use to transport dangerous goods, refer to Part 5 of the TDGR. Part 5 contains some general requirements regarding means of containment and also refers the reader to the appropriate standards used to manufacture, select and use a means of containment to transport dangerous goods in Canada.

  6. All standardized means of containment bear certification safety marks to indicate that they were manufactured in compliance with the standards. A certification safety mark is any design, symbol, device, letter, word, number or abbreviation that is displayed on a means of containment or means of transport to indicate compliance with safety standards.

  7. To maintain compliance with the standards, some means of containment must be periodically inspected, tested and marked at intervals specified by the standard or regulation. These marks describe what, when and by whom the inspections and tests were performed. All certification safety marks must be durable, visible, legible and easily accessible for inspection.

  8. Any means of containment that is used to transport dangerous goods must be:

    1. watertight;

    2. dust-proof and sift-proof;

    3. constructed of impermeable, non-absorbent materials that will not be corroded by the lading;

    4. designed to facilitate cleaning and decontamination;

    5. designed for the transport of liquids (leak-free); and

    6. capable of withstanding any internal pressure under normal conditions of transport, without any permanent deformation or leaks.
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4.0  MINISTERIAL DELEGATION

4.1  Obtaining Ministerial Delegation

  1. Regional dangerous goods superintendents must ensure that all regional CASI-DGs have access to the reference documents listed under 2.1, above.

  2. Using the reference documents provided in 2.1 above, CASI-DGs must complete the five training modules that are part of the “Means of Containment for Dangerous Goods for Aviation Inspectors” CD self-study program.

  3. Once the five modules have been completed, CASI-DGs must complete the exam at the end of the last module, consisting of ten questions. At the beginning of the exam CASI-DGs will enter their name, designator, region and telephone number.

  4. Once all ten questions are answered, CASI-DGs will click on “SEND” to submit the exam to the TDG Directorate for correction. The CASI-DG's respective regional manager and superintendent will be notified of the results. Should the inspector not achieve the passing grade, the exam will have to be retaken.

  5. Upon successfully passing the exam, the Regional Civil Aviation Dangerous Goods Superintendent will co-ordinate on-the-job training with the Surface Regional Manager, Dangerous Goods.

  6. The Regional Civil Aviation Dangerous Goods Superintendent will ensure that the Program Manager, Dangerous Goods Standards is informed of the training status.

  7. Some functions require proper occupational health and safety training, and for the employer to provide safety tools to perform given functions (e.g. verifying manhole and fill cover assembly may require climbing at a height of 2.4 m or more, which requires having appropriate training on the use and maintenance of fall protection.

    Note:

    Until further notice, CASI-DGs will not climb on top of any tanks to inspect manhole and fill cover assemblies. Visual inspections will be done from the ground as much as possible, and if any leakage is noted, it may require further inspection by a trained person with the required equipment.

  8. Once the on-the-job training is completed, the Surface Regional Manager, Dangerous Goods will notify the Program Manager, Dangerous Goods Standards and the Director, Compliance and Response Branch of the Transportation of Dangerous Goods Directorate to issue the new delegation of authority.

4.2  Maintaining Ministerial Delegation

  1. Regional Dangerous Goods Superintendents must keep abreast of TDGR amendments affecting standards stipulated under paragraph 2.1, above.

  2. The CASI-DG must read and understand amendments to the standards.

  3. The CASI-DG must, where appropriate, undertake any refresher course and corresponding examination.
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5.0  HIGHWAY TANKS OPERATING SOLELY ON AERODROME PROPERTY

5.1  Dangerous Goods Involved

  1. Dangerous goods that you are most likely to encounter in a highway tank on aerodrome property are:

    1. UN1202, Diesel, class 3 PG III, such as:

      1. LIGHT DISTILLATE,

      2. DIESEL ARCTIC (DYED OR CLEAR),

      3. DIESEL DEW (DYED OR CLEAR),

      4. DIESEL 60 (DYED OR CLEAR),

      5. DIESEL LIGHT (DYED OR CLEAR),

      6. DIESEL FUEL OIL 50 (DYED OR CLEAR),

      7. DIESEL LOW SULFUR LIGHT (DYED OR CLEAR),

      8. LIGHT DISTILLATE (LOW SULFUR),

      9. DIESEL FUEL OIL 50 (DYED OR CLEAR),

      10. DIESEL LOW SULFUR LIGHT DYED EP;

    2. UN1203, Gasoline, class 3 PG II, such as:

      1. Avgas 100 LL, Avgas 100;

    3. UN1863, Fuel Aviation, Turbine Engine, class 3 PG II or III, such as:

      1. TURBINE FUEL AVIATION, WIDE CUT TYPE,

      2. JET B,

      3. TURBO FUEL B,

      4. TURBO FUEL B F40,

      5. TURBO FUEL B JP4,

      6. TURBO FUEL B (FSII),

      7. JET B (FSII),

      8. AVIATION TURBINE FUEL (JP-4, JP-5, JP-8),

      9. CAN/CGSB-3.22 GRADE F40,

      10. JET A/A-1 KEROSINE;

    4. UN1268, Petroleum Distillates, n.o.s. or Petroleum Products, n.o.s., class 3, PG II or III (TDGR special provision 17 applies to UN1203 and UN1863 and allows them to be handled, offered for transport or transported under UN1268); and

    5. NA1993, Combustible liquid, n.o.s. (contains isoparaffinic hydrocarbon), PGIII (CFR 49 classification for liquids having a flash point over 60C such as JP-5, JP-7).

5.2  Types of Highway Tanks

  1. Once you know the classification of the dangerous goods, you need to determine if the highway tank has been appropriately selected.

  2. Highway tanks that are allowed for the dangerous goods listed in 5.1, above, as identified in Table 4 in Chapter 8 of CAN/CSA-B621-03, are:

    1. TC 306 or TC 406;

    2. TC 307 or TC 407;

    3. TC 312 or TC 412.

  3. Equivalent highway tanks may be used if they meet additional requirements of CAN/CSA-B621-03 paragraph 5.1.1, and are:

    1. TC 350;

    2. DOT 406;

    3. MC 306.

  4. Highway tanks containing non-dangerous goods (e.g. substances that have a flash point greater than 60.5°C, but less than or equal to 93°C) and being transported as Class 3, Flammable Liquids, PG III, must meet the requirements of the TDGR that relate to flammable liquids that have a flash point less than or equal to 60.5°C. (See TDGR 1.34.)

  5. In accordance with CAN/CSA B621-2003, Table 2—Equivalent and Substitute Portable Tank Specifications of Clause 6—Portable Tanks, in rare instances some portable tanks may be used as a substitute to TC407 or TC412. In those instances, such portable tanks must meet the respective requirements as set out in B621 and B620.

5.3  Specification Plate

  1. A plate must be attached near the front or on a head of a highway tank, and it must provide the information needed to ensure the highway tank is authorized for the product being transported. The plate must indicate to what specification the tank was constructed, and will contain other required information pertaining to tank construction and design.
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6.0  INSPECTION PROCEDURES

6.1  Before Going to the Site

  1. Consult the database to obtain all the relevant information on the highway tanks to be inspected at the site to be visited.

    Note:
    This data will initially be supplied to each region by the project team, but will be placed in and made available in the National Aerodrome Safety Database (NASD) for future use.

  2. For the two-year duration of this pilot project, CASI-DGs are to concentrate on highway tanks operating solely on aerodrome property, and that are not currently licensed for the highway in the jurisdiction in which the aerodrome is located.

  3. Verify for each aerodrome, the type of fuel being used and the type of highway tanks that are allowed. Ensure that the information gathered for the inspection is pertaining to highway tanks operating solely on aerodrome property, as defined in 2.3(3) of this SI.

  4. Verify the specifications for each respective highway tank by consulting CAN/CSA-B620 Clause 5.1 for the general requirements applicable to all tanks, Clause 5.6 for requirements concerning highway tanks transporting liquid, and Clause 5.7, 5.8 or 5.9 for the specific requirements for a given type of tank.

  5. Ensure you have your credentials, and gather all the documentation needed to perform your inspection tasks, such as the reference documents listed in 2.1, the appropriate inspection checklist, etc.

  6. Ensure you have the appropriate personal protective equipment needed for the functions being performed and for the weather conditions. 

6.2  At the Site

  1. Records, documents and evidence:

    1. Introduce yourself to the refuelling company's responsible person at the aerodrome. If needed, present your credentials;

    2. Using the TDGR for the surface mode requirements, review employee (e.g. truck drivers) training records, shipping documents, and highway tank inspection and certification records;

    3. While concluding your inspection, and where observations or deficiencies are noted, obtain objective evidence either photographically, by photocopying documents (certified true copy), note taking, or inspection report;

      Note:

      Samples may only be taken by trained and qualified persons and with the authorization of the regional manager.

    4. All inspection data pertaining to highway tanks on airport property must be entered in NASD;

      Note 1:
      The Dangerous Goods Standards Division is currently assessing the feasibility of having the National Aviation Company Information System (NACIS) and NASD share data to allow CASI-DGs to enter the information into one database.

      Note 2:
      TDGR section 1.35—Class 3 Flammable Liquid: UN1202, Diesel Fuel, or UN1203, Gasoline Exemption provides some limited exemptions for the transport of such fuel up to 2 000 L for all means of containment. However, the means of containment must still meet the standards.

  2. General health and safety precautions:

    1. Using the required personal protective equipment, when approaching the vehicle:

      1. strictly adhere to all departmental policies and procedures,

      2. approach the vehicle from upwind if practical, looking for leaks or vapours,

      3. identify yourself to the driver,

      4. select an appropriate site to inspect the tank,

      5. ensure that the vehicle is immobilized—including removal of the ignition key, application of the emergency brakes—and the wheels are blocked,

      6. request that the inspection area be cordoned off with safety pylons,

      7. notice the general condition of the tank, look for damage, repairs, and anything unusual (e.g. leaks),

      8. never taste, touch, smell, or walk through any leaking material, and

      9. never knowingly expose yourself to conditions that may threaten your health or safety—use appropriate protective equipment, devices or clothing and follow industry safety policies.

  3. Highway tank inspection tasks:

    1. Some tanks may require additional information on their metal identification plate. You may find this information under the clauses specific to the type of tank (e.g. TC 406); 

    2. A tank that was manufactured in accordance with an older version of CSA B620, or 49 CFR, may have different requirements regarding metal identification plates;

    3. Using the inspection checklist provided in Appendix A—Aviation Dangerous Goods Highway Tank Inspection Checklist or at the end of the last lesson on the self-study CD, perform the following tasks;

      1. approach the vehicle from an upwind direction. Should an obvious leak or odour exist, stop the inspection until further assessment of the situation by the fuel company,

      2. interview the driver regarding the dangerous goods being transported in the highway tank. Request their training certificate and the shipping document,

      3. review the driver's training certificate for compliance with TDGR section 6.2,

      4. review the shipping document for compliance with TDGR Part 3,

      5. review the highway tank for proper safety marks and placards that comply with TDGR Part 4,

      6. if the highway tank does not leave the aerodrome property, verify compliance with TDGR paragraph 5.14.1(b) marking requirements,

      7. inspect the metal identification plate against the requirements found in the CSA B620 standard. Refer to Clause 5.1 for highway tanks specifications to:

        1. determine if the specification of the tank is authorized for the dangerous goods, referring to 5.2 and 6.2(2)(a)(iv), above,

        2. if the tank was manufactured prior to 1987 or 1998, verify the metal plate marking requirements with the CSAB620-1987 or 1998,

        3. ensure that the metal identification plate is properly located and affixed on the tank:

          1. if built prior to July 1985, the plate will be mounted on the right side of the tank,

          2. if built after July 1985, the plate will be mounted on the left side of the tank,

        4. ensure that all of the required information is present and legible (size and clarity),

        5. determine the maximum service pressure against the appropriate tank specification, and

        6. determine the load in means of containment (volume and weight) using information provided in Appendix B—Loading Limits. Compare with information on the shipping document or the gauge located on the highway tank to ensure it was not overfilled,

      8. Measure the ground clearance to meet B620-03, paragraph 5.6.9.1.6.

  4. If you happen to witness the loading or unloading of a highway tank, verify the following:

    1. the tank is not overfilled (use calculation from Appendix B—Loading Limits);

    2. the dangerous goods, the tank and its components are compatible;

    3. the tank is grounded where a fire hazard exists;

    4. the hoses and couplings are in sound condition; and

    5. the valves are closed after loading and unloading.

  5. Highway tank periodic inspection and test intervals:

    1. After a periodic inspection or test has been performed on the tank, the tank must be marked with numbers and letters that are at least 32 mm (1.25 in.) high to indicate:

      1. the month and year of the last test date,

      2. the type of inspection or test performed, and

      3. the facility registration number;

    2. The standard requires tanks be marked on the tank shell near the specification plate or anywhere on the front head;

    3. If more than one test or inspection was performed on a given date, each one may be marked near the date. The markings must be durably and legibly marked on the tank. This may be accomplished using decals, stickers, marking pens, or any other means;

    4. Appendix C—Inspection Test Table shows the inspections and tests, their associated symbol that will be marked on the tanks, a general description and the reference to the standards where you may find additional information;

    5. The CAN/CSA-B620, Clause 7.1.1 sets out the general requirements for intervals of periodic inspection and testing. In short, this clause tells us that:

      1. all tanks shall be inspected and tested in accordance with Table 7.1 and Table 7.2 of that standard,

      2. inspections and testing shall be performed by a facility registered in accordance with Clause 8, and 

      3. the due date for the test and inspection period is based on the last date marked on the tank, or, if no date is marked, the date found on the metal identification plate;

      Note:
      Subsection 5.14.1 of the TDGR exempts TC 306/406 Highway Tanks that are used to fuel aircraft and that operate only on airport property to be internally inspected if they are clearly marked on each side with the words “Dedicated Aviation Refueller Restricted to Use on Airport Property.” The section also permits hose assemblies that are not CSA-certified to be tested with compressed gas, flammable liquids or corrosive liquids when they are on aircraft refuellers.

  6. Inspecting supports, anchors, shell, head and circumference reinforcement:

    1. Anchors, stops or other components:

      1. ensure that they are readily accessible for inspection and maintenance (insulation and jacketing may cover them, as permitted by some clauses),

      2. verify that all components that secure the tank to the truck or trailer are secure, tight and show no sign of damage or heavy corrosion,

      3. look for signs of poor weld integrity (e.g. cracks or corrosion) indicating problems,

      4. ensure that the supports are not welded directly to the tank;

    2. The shell and head:

      1. verify that they are clean and free of residue or spills of dangerous goods,

      2. ensure that there are no leaks from any part of the structure or its welding,

      3. ensure that there is no damage to the shell or head that could affect tank integrity (i.e. dents or cracks);

    3. Circumferential reinforcement (bulkheads, baffles, or ring stiffeners):

      1. check for integrity when visible;

  7. Inspecting piping, outlets, closures, valves, gauges and fittings:

    1. Piping, outlets, closures, valves, gauges and fittings should be inspected to ensure that they comply with the standard. Ensure that:

      1. there is no leakage,

      2. the protections are present and in sound condition,

      3. markings are present and legible (when applicable),

      4. all hatches, valves and other openings in the means of containment are closed and secured;


      Note:

      Do not open any hatches or valves, or remove any plugs, rags, tape, etc., from any openings during the course of your inspection.

    2. Hoses and hose assemblies should be inspected to ensure that they comply with the standards. Ensure that:

      1. they are not damaged in any way (kinked, flattened, deformed, or excessively worn),

      2. the hoses have been tested and properly marked (see TDGR Amendment 7);

  8. Inspecting emergency flow control devices:

    1. Emergency remote control devices make up the emergency flow control system of the highway tank. This system consists of three emergency remote control devices that must be inspected to ensure that they comply with the standard:

      1. internal valves:

        1. verify that they are present and in the closed position. They must not be held open by foreign devices (e.g. wire) (DO NOT OPEN VALVES),

      2. automatic heat-activated device:

        1. ensure that an automatic heat-activated device is present. Fusible devices may be located anywhere in the system. The most common locations are at the valve or at the valve control station,

      3. manual remote control shut-off:

        1. without opening any valves, check to see that the manual remote control shut-off is operational. You may ask the person who has control of the tank to provide you with assistance. The shut-off device should operate freely. There are three basic types of remote shut-offs: cable, pneumatic and hydraulic. Most airport refuellers will have either a cable or pneumatic remote control shut-off (DO NOT OPEN VALVES).

  9. Inspecting rear-end protection:

    Rear-end protection should be inspected to ensure that it complies with the standard. 

    1. Ensure that the bumper and any other device protect the tank and any components at the rear of the tank that may contain lading (nothing must protrude beyond the rear-end protection);

    2. Verify that the rear-end protection is not welded directly to the tank;

    3. Verify that the measurements comply with the standard; and

    4. Verify that the rear-end protection has not been damaged (following a collision or accident).

  10. Inspecting manhole and fill cover assemblies:

    Note:
    Until further notice, CASI-DGs will not climb on top of any tanks to inspect manhole and fill cover assemblies. Visual inspections will be done from the ground as much as possible, and if any leakage is noted, it may require further inspection by a trained person with the required equipment.

    1. Do not climb on top of the vehicle unless you have all appropriate safety equipment. If the safety equipment is not provided, this inspection task does not need to be completed;

    2. Do not work alone when using fall protection or restraint;

    3. Verify for signs of leakage around the manhole and fill covers (hissing, odours, or liquid escaping from the manhole assembly may signal that the manhole cover is not sealed properly);

    4. Verify that all manhole and fill covers are closed and secured during transport; and

    5. Verify that markings are present.

  11. Inspecting double bulkhead drains (if present):

    1. Verify that the double bulkhead drain is not obstructed;

    2. If the drain hole is plugged, DO NOT REMOVE the plug, as the tank may be leaking.

  12. Inspecting pressure relief systems:

    1. Ensure that the pressure relief systems are present, when not prohibited;

    2. Inspect the primary and secondary pressure relief system to ensure that the appropriate markings of flow rate are present; and

    3. Ensure that there is no sign of leakage.

  13. Inspecting damage protection and overturn protection:

    1. Outlets, valves, closures and any other device that may retain lading must be protected against damage. Damage protection and overturn protection must be inspected to ensure that they comply with the standard. Ensure that:

      1. damage protection and overturn protection are present, and

      2. there are no signs of damage.

  14. Following an inspection, the CASI-DG issues an inspection report, a notice of infraction or a letter that contains the findings of the inspection, including any non-compliance. This report/letter can be sent by mail or hand-delivered to an authorized company representative at the time of the inspection. In all cases, a debriefing must be provided immediately following the inspection to explain the inspection results, including all non-compliance issues.
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7.0  ENFORCEMENT PROCEDURES

  1. Observations and deficiencies must be addressed using measures to achieve voluntary compliance. CASI-DGs must follow the procedures found in this SI.

  2. These enforcement procedures should be used as guidelines to assist in making the proper decision using your own judgment and expertise available.

  3. Verbal warnings may be given at the time of the inspection for minor observations, such as a faded safety mark, but that warning must be recorded in the inspection report.

  4. The CASI-DG must request that the fuelling company provide a corrective action plan in a timely manner for any deficiencies noted.

  5. The CASI-DG should consult with the Dangerous Goods Standards Division or a subject matter expert, depending on the issue, when necessary, to provide proper advice to the fuelling company.

  6. The CASI-DG must ensure follow-up on the corrective action plan when deemed necessary, or as applicable.

  7. Enforcement procedures for accidental release or imminent accidental release are as follows:

    1. The CASI-DG must ensure that the TDGR Part 8 reporting requirements, except for subsection 8.1(2), have been followed;

    2. Transport Canada liability and responsibilities must be thoroughly evaluated before detaining a large means of containment on an aerodrome property. A CASI-DG should consult with a means of containment expert or remedial measures specialist when in doubt if a large means of containment should be detained. When a Notice of Detention under subsection 17(2) of the TDG Act, 1992 is issued, the Regional Superintendent, Dangerous Goods must be notified;

    3. In situations, where a direction must be issued to remedy non-compliance under subsection 17(3) of the TDG Act, 1992, follow the procedures found in the TDG Directorate Inspector Manual, section 4.8—Direction to remedy non-compliance;

    4. To cease the operation of a given fuelling company operating on aerodrome property, or to conduct similar activities, the matter must be referred to the Director General, TDG Directorate to issue a Protective Direction under TDG Act, 1992 subsection 32(1);

    5. Prosecution should always be the last resort and should be carried out in consultation with the Regional Superintendent, Dangerous Goods.

8.0  CONTACT OFFICE

For more information, please contact the:
Program Manager, Dangerous Goods Standards

Phone:  613-990-1060
Fax:  613-954-1602
E-mail:   CAIRS_NCR@tc.gc.ca

Suggestions for amendment to this document are invited, and should be submitted via the Transport Canada Civil Aviation Issues Reporting System (CAIRS) at the following Internet address:

www.tc.gc.ca/CAIRS
or by e-mail at: CAIRS_NCR@tc.gc.ca

Original signed by Jacqueline Booth-Bourdeau for

Don Sherritt
Director, Standards Branch

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APPENDIX A – AVIATION DANGEROUS GOODS HIGHWAY TANK INSPECTION CHECKLIST

DATE:______________
TIME:______________
COMPANY AND LOCATION:__________________________________________________
CONTACT PERSON:__________________________________________ TEL.No.:____________________________

DOCUMENTS-RECORDS-PLACARDS   VEHICLE
TRAINING CERTIFICATE and RECORDS Y        N   TRUCK or TRAILER  
TANK INSP RECORD Y        N   MAKE  
SHIPPING DOC/FUEL LOG Y        N   LICENCE or I.D. No.  
PLACARD TYPE AND NUMBER Y        N   SERIAL NUMBER  
TANK INFORMATION
MANUFACTURER :   MANUFACTURER'S DESIGN IDENTIFICATION No.:
TANK INSP RECORD   UNIT SER. No:
DATE OF MANUFACTURE:   CERT.DATE:   ORIGINAL TEST DATE:
MAWP (in kpa):   TEST PRESURE:
TANK CAPACITY (front to rear)                    <>                            <>                                <>                                <>
VOLUMETRIC CAPACITY (L):   MAX. PRODUCT LOAD (kg):
SPEC. PLATE (Location/size/clarity):             Y          N   NON SPEC PLATE (PG III only):               Y           N
             TEST MARKINGS:   V (External Inspection):              Y        N         DATE:
I (Internal Inspection):             Y        N         DATE:   K (Leakage Test):                      Y        N         DATE:
P (Pressure Test):                   Y        N         DATE:   T (Thickness Test):                    Y        N         DATE:
 
SUPPORTS and ANCHORS                      Y               N   HOSES TESTED and MARKED  :                           Y            N
BULKHEAD DRAINS :                                Y               N   SHELL and HEAD :                                                Y            N
REAR END PROTECTION :                       Y               N   CIRCUMFERENTIAL REINFORCEMENTS :          Y            N
(see back of form for quick references)
NON COMPLIANCE FINDINGS and ACTIONS TAKEN
 
 
DETECTABLE LEAKS TDG ACT SECTION 19                                                Y                                    N
OUT of SERVICE TDG ACT SECTION 17                                                Y                                    N     

REMARK/FOLLOW-UP

INSPECTOR'S NAME:_________________________________  SIGNATURE:_____________________________________

PERIODIC INSPECTION AND TEST INTERVALS
Table 7.1    Clause 7.1.1, C1,C2 and C6 of CSA B620
DESCRIPTION OF TANKS V
Clause
7.2.1 		I
Clause
7.2.2* 		L
Clause
7.2.3 		K
Clause
7.2.5 		P
Clause
7.2.7 		T
Clause
7.2.6† 		U
CClause
7.2.4
TC 306 or TC 406‡ 1 year 5 years — 1 year 5 years§ — —
ADDITIONAL PERIODIC INSPECTION AND TEST INTERVALS
Table 7.2    Clause 7.1.1 and C6 of CSA B620
All tank trailers with
upper coupler 		— — — — — — 5 years

‡ Highway tanks used to fuel aircraft and that operate only on aerodrome property are exempt from internal inspection if they are clearly marked on each side with the words “Dedicated Aviation Refueller Restricted to Use on Airport Property” and the words are clearly visible from the ground, in letters that are not less than 25 mm high and in a colour that contrasts with the colour of the tank.

§ Pressure tests shall not be required for un-insulated lined tank trucks and trailers with a design pressure or maximum allowable working pressure (MAWP) of 103 kPa (15 psig) or less, if an external inspection and a lining inspection have been performed annually.

NON-SPECIFICATION TANKS—Used to transport DIESEL FUEL, HEATING OIL LIGHT AND FUEL, AVIATION TURBINE ENGINE, Class 3, PG III

  • the words “non-spec flammable liquids tank” and “not for dangerous goods use after January 1, 2010”;
  • the date of the first inspection or test;
  • the name of the facility.
REFERENCES
PLACARDS

TDGR  PART 4

TANK SPECIFICATIONS

CSA/B620-03   -  5

TANK INSPECTION/TESTING/MAINTENANCE

CSA/B620-03   -  7

USE OF A MEANS OF CONTAINMENT

CSA/B621-03   -  7

TANK SELECTION

CSA/B621-03   -  8


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APPENDIX B – LOADING LIMITS

  1. To verify if the loading limits have been exceeded, you must make note of the following information located on the metal identification plate:

    1. Maximum loading rate (Max. Load. Rate);

    2. Maximum unloading rate (Max. Unload. Rate);

    3. Maximum design density of lading (Max. Lading Density);

    4. Volumetric capacity (Vol. Cap Litres);

    5. Maximum product load (Max. Payload);

    6. You also need the density of product being loaded or transported in the tank. You can find the product density on the manufacturer's safety data sheet (MSDS). For your information, the approximate density for the following products are:

    UN Number Shipping Name Approximate Density
    UN1202 Diesel 0.81–0.90
    UN1203 Gasoline 0.73–0.75
    UN1863 Fuel, Aviation, Turbine Engine 0.78–0.81

  2. Definitions:

    1. Maximum loading rate: the rate at which the vehicle is being loaded must not exceed the rate marked on the metal identification plate.

    2. Maximum unloaded rate: the rate at which the vehicle is being unloaded must not exceed the rate marked on the metal identification plate.

    3. Maximum design density of lading: the density of product being loaded into the tank must not be greater than the "Max. Lading Density" that is marked on the metal identification plate.

    4. Volumetric capacity: the volumetric capacity is the maximum amount in litres that the
      tank can carry. This capacity generally includes a 2 percent outage, which is required
      under clause 7.2 of CSA B621. The quantity of product in the tank must never exceed the
      volumetric capacity that is marked on the metal identification plate.

    5. Maximum product load: the "Max. Payload," as referred to on the metal identification plate, is the maximum amount of product, in kilograms, that can be loaded into the tank. The total quantity of product in the tank must never exceed the maximum payload that is marked on the metal identification plate.

      Depending on the density of the product being loaded into the tank, the vehicle may exceed its maximum payload before it reaches its volumetric capacity. For example, you may be able to fill a tank with gasoline UN1203, but not be able to fill it with a heavier form of diesel fuel, even though both products (gasoline and diesel) would have a density less than the "Max. Lading Density" that is marked on the metal identification plate.

      You can verify if the tank has exceeded its maximum payload by multiplying the quantity of product in litres that have been loaded into the tank by the density of the product.

      Product load = (quantity of product in litres) x (product density).

      1. Using simple math, the above formula can be altered in order to determine the maximum amount of product (in litres) that can be loaded into a tank.

        Quantity of product in litres = maximum product load ÷ product density

        Example:

      2. The density of gasoline is approximately 0.73 kg/L or 730 kg/m3. If the maximum payload of a vehicle is 15 000 kg, as indicated on the metal identification plate, what is the maximum amount of litres that can be loaded in the tank?

        1. Quantity of product in litres = maximum product load ÷ product density

        2. Quantity of product in litres = 15 000 kg ÷ 0.73 kg / L

        3. Quantity of product in litres = 20 548 L

        4. Therefore, if a tank has a maximum product load of 15 000 kg, the maximum amount of gasoline in litres that can be loaded into the tank is 20 548 L. This quantity must also be verified against the "volumetric capacity" listed on the metal identification plate to ensure it does not exceed that quantity.
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APPENDIX C – INSPECTION TEST TABLE

Test or Inspection Symbol General Description Section of Standard
External visual inspection « V » The external visual inspection consists of looking at the exterior of the highway tank to detect deficiencies with respect to the requirements and to detect problems that could affect the safe operation of the tank. 7.2.1
Internal visual inspection « I » The internal visual inspection consists of looking at the interior of the tank to detect problems that could affect the safe transportation of materials. 7.2.2
Leakage test « K » The primary purpose of a leakage test is to verify the product retention integrity of the tank. 7.2.5
Pressure test « P » The primary objective of the pressure test is to verify the structural integrity of the highway tank. 7.2.7
Wet fluorescent magnetic particle inspection « WP » The primary purpose of a wet fluorescent magnetic particle inspection is to verify if the tank has any stress corrosion cracks. This inspection is done in conjunction with the pressure tests. 7.2.8
Date modified:
2012-02-27