Packing Instruction 869 (for UN 3506)

Passenger and cargo aircraft for UN 3506 only

General requirements

Part 4, Chapter 1 requirements must be met, including:

1) Compatibility requirements

- Substances must be compatible with their packagings as required by 4;1.1.3.

- Metal packagings must be corrosion resistant or be protected against corrosion.

2) Closure requirements

- Closures must meet the requirements of 4;1.1.4.

---------------------------------------------------------------------
                          COMBINATION PACKAGINGS
---------------------------------------------------------------------
                           | Net quantity*      | net quantity*
 UN number and             | per package        | per package
 proper shipping name      | - passanger        | - cargo
---------------------------------------------------------------------
UN 3506 Mercury contained  |                    |
        in manufactured    |    No limit        |    No limit
        articles           |                    |
---------------------------------------------------------------------

* For the purposes of Part 5;4.1.5.1 the "net quantity" shown on the dangerous goods transport document is the net mass of the manufactured articles in each package.

ADDITIONAL PACKING REQUIREMENTS

- Manufactured articles or apparatuses of which metallic mercury or gallium is a component part, such as manometers, pumps, thermometers, and switches must be packed in sealed inner liners or bags of strong leakproof and puncture-resistant material impervious to mercury or gallium, as appropriate, which will prevent the escape of mercury or gallium from the package irrespective of its position before being packed in outer packagings.

Note.- Mercury switches and relays are excepted from the requirement for a sealed inner liner or bag providing they are of the totally enclosed leakproof type in sealed metal or plastic units.

- Electron tubes, mercury vapour tubes (tubes with less than a total net quantity of 450 g of mercury) must be packed in strong outer packagings with all seams and joints sealed with self-adhesive, pressure-sensitive tape which will prevent the escape of mercury from the package.

Note.- Tubes with 450 g of mercury or more must be packaged according to the requirements for manufactured articles or apparatuses (above).

- Electron tubes which are packed in sealed leakproof metal cases may be shipped  in the manufacturer's original packagings.

OUTER PACKAGINGS OF COMBINATION PACKAGINGS (see 6;3.1)

Boxes                          Drums                      Jerricans

                     Strong outer packagings