Dangerous goods packaging ratings- EPISODE 2

Dangerous goods packaging ratings- EPISODE 2

January 2016

  • Determine the type of packaging you need
  • How to buy the right packaging?
  • Additional recommendations
  • References
 

Our previous tip of the month talked about what the packaging markings mean.

This month, here are some tips to help you select the right packaging for transporting your product. 

 

How to determine the type of packaging you need?

 

?To determine the right type of packaging for your product, you should refer to:

- the UN code of your product

- the regulations for the modes of transport you have chosen (road, air, sea, etc.).

For example, in the ADR Volume I, Chapter 3.2 "Dangerous Goods List"

?This will give you the "packing instruction" to determine what type of packaging to use: type and maximum capacity (or maximum net mass) depending on the packing group.

Pay attention to any "Special packaging provisions".

For example, in the ADR Volume II, paragraph 4.1.4.1 "Packing instructions concerning the use of packagings"

? Please note, for the transport of liquids in PE packaging, you must check the UN code to see if your packaged liquid product is assimilated to a standard liquid (see below).

For example, in the ADR Volume I, Chapter 4.1.1.19.6 "Assimilation List"

 

How to buy the right packaging?

Choisir-emballages-small? Choose an approved packaging of the right type and capacity determined using the above process.

 

? Always compare the Material Safety Data Sheet (MSDS) of the product and the UN rating of the packaging selected.

  • Check the rating on the packaging to make sure it is valid for the type(s) of transport planned.

ADR (road) / RID (rail) / ADN (inland waterways) / IMO-IMDG (maritime) / IATA-ICAO (air)

  • Check that the packing group is sufficient.
  • For the transport of liquids in HDPE packaging: Do not look at the specific gravity and the pressure indicated on the rating, but refer to the table of chemical compatibility of the standard liquids present in the rating.

The marking on the packaging corresponds to:

  • tests carried out with water
  • hydrostatic pressure tests, not vapour pressure tests

If the standard liquid to which you have assimilated your product is not listed in this table, you cannot use this packaging.

  • For the transport of solids: thoroughly check the maximum gross mass under normal filling conditions (see below). Remember, gross mass also includes the weight of the package.

 

 

Additional recommendations

? The packagings are not interchangeable: You must use packaging rated for liquids for liquids and packaging rated for solids for solids. Some packagings have a double rating for solids/liquids.

Note: for the transport of Class 3 flammable viscous liquids, there is a specific RID-ADR "light gauge" regulation on light gauge metal packaging (tinplate).

? UN ratings cover a specific packaging + type of closure.  This means you need to comply with the packaging + type of closure indicated in the rating.

? It is important to note that the packagings have been designed for "normal" filling and have been tested under specific test conditions. It is difficult to predict what happens if, for example, a 1000-litre IBC is filled with just 600 litres of product. In this case your liability is incurred. This is made clear in the ADR:

  • "When filling packagings with liquids, sufficient ullage (outage) shall be left to ensure that neither leakage nor permanent distortion of the packaging occurs as a result of an expansion of the liquid caused by temperatures likely to occur during transport. Maximum degrees of filling are defined as follows: 90% to 98% of the capacity of the packaging." (see Section 4.1.1.4 of Volume II ADR)
  • For the tests, the packagings shall be filled to no less than 98% of their maximum capacity for liquids or 95% for solids." (See Section 6.1.5.2 of Volume II of the ADR on "preparation of packagings for testing")

? One trap to avoid, for liquids, is to think in mass rather than specific gravity and package a smaller amount of product because its specific gravity would be higher than the UN rating for the pail. This can't happen. It is absolutely forbidden to exceed the maximum allowable specific gravity indicated in the rating.

? It is prohibited to transport "hazard group I" hazardous liquids in IBCs.

? The sender (the one who orders the transport) is solely liable under the law.

 

 

References

 

TMD-ADR? For road transport (ADR), the rules are set out in the European Agreement concerning the International Carriage of Dangerous Goods by Road of UNECE (United Nations Economic Commission for Europe).

? For rail transport (RID), the rules are set out in the Convention concerning International Carriage by Rail (COTIF) - Appendix C - Regulations concerning the International Carriage of Dangerous Goods by Rail (RID)

? For inland waterway transport (ADN), the rules are set out in the European Agreement concerning the International Carriage of Dangerous Goods by Inland Waterways of UNECETMD-IATA

? For maritime transport (IMO-IMDG), the rules are set out in the International Maritime Dangerous Goods Code of the IMO (International Maritime Organization)

? For air transport (IATA-ICAO) the rules are set out in the Dangerous Goods Regulations of the IATA (International Air Transport Association) and the ICAO (International Civil Aviation Organization)

 

 

 

Any reproduction of this Article is prohibited without the written consent of Fidel Fillaud or attribution


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