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 According to transport regulations, dangerous goods must be assigned to one of the Proper Shipping Names shown in Dangerous Goods List of the applicable transport regulations such as ADR, ICAO-IATA DGR, IMO-IMDG Code, RID or 49 CFR.  

Selecting the Proper Shipping Name (well known by the abbreviation PSN) is a key step to ensure that the dangerous goods offered for transport accurately represents its hazards. It is the preliminary step to determine labelling, marking and documentation requirements. In fact, the Proper Shipping Name is an essential element to identify the dangerous good (article, substance, mixture or even waste) on the outside of the package and on the Dangerous Goods Declaration.
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This article intends to provide  the guidelines to identify and select the Proper Shipping Name and guarantee that your shipment meets all dangerous goods regulations provisions.

 

 

 

 

  • Definition of Proper Shipping Name (PSN)

IATA DGR 55th Edition defines the Proper Shipping Name as “the name to be used to describe a particular article or substance in all shipping documents and notifications and,  where appropriate, on packagings”.

 On the other hand, the IMDG Code defines the Proper Shipping Name as “that portion of the entry most accurately describing the goods in the Dangerous Goods List which is shown in upper-case characters (plus any letters which form an integral part of the name).

  • General Criteria to select the Proper Shipping Names

Entries in the Dangerous Goods List are of the following four types, in the preferred order of use:

  1. Single entries for well-defined substances or articles. Example: UN 1090, ACETONE
  2. Generic entries for a well-defined group of substances or articles. Example: UN 1263, PAINT
  3. Specific “Not Otherwise Specified “n.o.s. entries covering a group of substances or articles of a particular chemical or technical nature, for example UN 1224, KETONES, LIQUID, N.O.S
  4. General n.o.s. entries covering a group of substances or articles meeting the criteria of one or more classes or divisions, for example UN 1992, FLAMMABLE LIQUID, TOXIC, N.O.S

In all cases the shipper shall classify the substance offered for transport by comparing its properties with the classification criteria of the hazard class. If the item has more than one hazard, the shipper must apply the prevalence of multiple hazards criteria to determine the primary hazard and assign the proper shipping name accordingly.

The selected Proper Shipping Name may be used in singular or plural as appropriate according to the Dangerous Goods List of the applicable transport regulation such as 49 CFR, ICAO-IATA, IMO-IMDG, ADR, RID.

The proper shipping name shall be included in the Dangerous Goods Transport Document. In some occasions, it is important to note that the dangerous goods description can be supplemented. Here below some examples to be considered when offering dangerous goods for sea transport:

  • Generic and "not otherwise specified" proper shipping names that are assigned to special provision 274 or 318 shall be supplemented with the technical name of the goods, for example: UN 1993, FLAMMABLE LIQUID, N.O.S (contains acetone and ethyl alcohol).
  • Wastes: the proper Shipping Name must be preceded by the word “WASTE”
  • Marine Pollutants: identified in the dangerous goods list with the P symbol. When shipping dangerous goods by sea transport, the proper shipping name may be supplemented with the recognized chemical name of the marine pollutant and the term “MARINE POLLUTANT” which may be supplemented with the term “ENVIRONMENTALLY HAZARDOUS”
  • Flashpoint: the minimum flash point shall be indicated if the dangerous gods to be transported have a flash point of 60o C (in closed-cup, c.c.) or below. Example: UN 1294, 3, II (7o C c.c.)
  • Mixtures or Solutions: if a mixture or solution is composed of a single predominant substance identified in the Dangerous Goods List and one or more substances not subject of the classification criteria, the mixture shall be assigned to the Proper Shipping Name of the predominant named in the Dangerous Goods List by adding the words “MIXTURE” or “SOLUTION” unless:
  • The mixture is identified in the Dangerous Goods List
  • The name identified applies only to the pure substance
  • The hazard class or division, subsidiary risk, packing group or physical state of the mixture or solution is different from that of the substance named.
  • The hazard characteristics and properties of the mixture require different emergency response measures.

A mixture or solution not identified in the Dangerous Goods List and that is composed by two or more dangerous goods shall be classified accordingly.

It is important to note that if a substance or mixture is intended to be offered for transport and is not included in the Dangerous Goods List, it does not mean that it does not meet the classification criteria to be considered as Dangerous Goods. In these cases, the consignor shall determine if the dangerous goods fall under any hazard class and check all relevant information to conclude it.  The Safety Data Sheet can be a helpful tool as described in our previous article.

 

DGM can ensure that your dangerous goods are classified and offered for transport meeting Dangerous Goods provisions in accordance with Dangerous Goods Transport Regulations. For any questions, please don’t hesitate to contact us.

 

 

 

 

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