Packing Instructions

Packing instructions are the instructions set out in the IATA DGR that detail precisely how to pack different types of dangerous goods. They are commonly referred to as the “yellow pages” (because the pages are indeed yellow!). The packing instruction required will depend upon what type and quantity of dangerous good is being sent. You can work out which packing instruction will be applicable when looking up the proper shipping name in the List of Dangerous Goods (Blue pages). Columns G, I and K refer you to specific packing instructions that must be followed under each different circumstance. 

Packing instructions assist the shipper by detailing:

• State and Operator Variations that may apply
• Reference to the manufacturing and testing standard
• Details of whether combination packaging is permitted
• The maximum amount of dangerous good permitted within the inner package (if applicable)
• Details of whether single packaging is permitted

You will notice that some of the packing instructions have a "Y" in front of them, while others do not. This is because packing instructions with a "Y" prefix are instructions on how to pack dangerous goods in Limited Quantity packaging. If the packing instruction does not have a "Y" prefix, then it relates to UN specification packages only.

To summarise:

i) Limited quantity packing instructions are prefixed with the capital letter "Y", for example Packing Instruction Y344. 

ii) A UN packing instruction is referenced by a number only, for example Packing Instruction 355.

 It is important to be aware that:

• The "yellow pages" give the maximum quantity of dangerous good per inner package if using combination packaging.
• The "blue pages" provide the maximum quantity of dangerous good permitted per package.

Packing techniques

On the following page are two examples of packing instructions that are referred to when looking at sending Ethanol Packing Group III. One example uses Limited Quantity packing instruction Y344, while the other is for UN packing instruction 355.  Note that packing instruction 355 allows for both combination and single packaging:

1. Combination Packaging

Combination packaging technique consists of an inner container, which is then packed into an outer container. This is usually surrounded by material to absorb shock and leakage from the inner container should this occur.

2. Single Packaging

Single packaging is manufactured and tested to a very high standard and is used only if permitted by the packaging instruction.

Note 1: Class 1, Explosives, Class 2, Gases and Class 6.2, Infectious substances are FORBIDDEN to be transported in Limited Quantity packagings.

 

 

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