Little Proon2016-01-07
Selected dangerous goods packed in small quantities (limited quantity) or very small volumes (excepted quantity) pose a lesser risk in transport than do the same goods packed in larger volumes. Thus they qualify for some relief from robust packaging requirements provided that they are packed and marked properly. This could save considerable packaging costs.
Definition of Limited Quantity and Excepted Quantity and How to Find Them
The limited quantity is the maximum quantity per inner packaging or article for transporting dangerous goods as limited quantities. It can be found in the column 7a of Dangerous Goods List. In the example below, the limited quantity for antimony compounds is 5kg per inner packaging.
The excepted quantity is the maximum quantity per inner and outer packaging for transporting dangerous goods as excepted quantities. The quantity limit can be found in the column 7b of the Dangerous Goods List. 7b does not directly list the max quantity per inner and outer packaging. Instead, 7b gives various E codes (E0~E5). By refering to the table below, you can find out allowed excepted quantity.
Limitations and Labelling Requirements for Dangerous Goods Transported in Limited Quantities or Excepted Quantities
Even for dangerous goods transported in limited quantities or excepted quantities, there are some packaging and labelling requirements you need to follow:
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Limited Quantities and Excepted Quantities Marking
Note: Some national regulations do not contain limited quantity and excepted quantity provisions.
Reference & Resources
Having Questions?
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Tags: Topics - TDG,Dangerous Goods
As an expert in the field of transporting dangerous goods, I have a comprehensive understanding of the regulations and safety measures involved in handling these materials. My expertise is grounded in a thorough knowledge of the relevant guidelines, such as the UN Recommendations on the Transport of Dangerous Goods - Model Regulations Eighteenth revised edition (TDG Rev. 18). This in-depth understanding allows me to provide valuable insights into the nuances of packaging, labeling, and transporting dangerous goods, particularly those in limited quantities or excepted quantities.
Let's delve into the key concepts discussed in the provided article:
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Limited Quantity and Excepted Quantity:
- Limited Quantity: This refers to the maximum quantity per inner packaging or article for transporting dangerous goods as limited quantities. The specific limits can be found in column 7a of the Dangerous Goods List. For instance, the article mentions that the limited quantity for antimony compounds is 5kg per inner packaging.
- Excepted Quantity: This is the maximum quantity allowed per inner and outer packaging for transporting dangerous goods as excepted quantities. The quantity limits are specified in column 7b of the Dangerous Goods List, which provides various E codes (E0~E5). A separate table needs to be referenced to determine the allowed excepted quantity.
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Limitations and Labelling Requirements for Limited Quantities or Excepted Quantities:
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Limited Quantities:
- Goods must be carried in small containers (e.g., bottles) packed in boxes or on shrink-wrapped trays.
- Packages must meet specific performance test requirements, which are less stringent than UN-approved packages.
- The maximum gross weight is 30 kgs for boxes or 20 kgs for shrink-wrapped trays.
- Outer packages must bear the limited quantities mark and hazard symbols.
- Dangerous goods transported in limited quantities must be communicated in a shipping document.
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Excepted Quantities:
- UN-approved packages are not required.
- Dangerous goods hazard symbols are not required.
- Packages must pass drop tests and stacking tests.
- The total number of packages carried on any one cargo transport unit shall not exceed 1000.
- Outer packages must bear the excepted quantities mark.
- A statement "Dangerous Goods in Excepted Quantities" and the number of packages shall be included in a shipping document.
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Limited Quantities and Excepted Quantities Marking:
- Both limited quantities and excepted quantities have specific marking requirements, including symbols and statements that must be displayed on the outer packaging.
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Reference & Resources:
- The article refers to the UN Recommendations on the Transport of Dangerous Goods - Model Regulations Eighteenth revised edition (TDG Rev. 18) as a key resource for understanding and implementing regulations in this domain.
In conclusion, my expertise allows me to elucidate the complexities of transporting dangerous goods, specifically in limited quantities or excepted quantities, ensuring adherence to safety regulations and cost-effective packaging solutions.
