Before we start talking about the transport of class 7 hazardous materials, I will give you a simple overview of some of the daily uses of radioactive materials for those who are less familiar with them. Radioactive materials are used in several fields to improve the quality of life, and they are used by qualified personnel to ensure that radioactive materials are prepared, transported, used and disposed of in a safe manner.
I will give you an example where Dangerous
Goods Class 7 is used, radioactive materials are used in nuclear applications
in medicine for the purpose of diagnosis, treatment and disease management.
They have many uses in animal production such as insect control and animal
production enhancement ... etc.
Note : By reading
this article, we recommend that you read previous Dangerous Goods Class 6. Or click
here for all list of dangerous goods articles.
What are radioactive materials?
Dangerous goods
which are classed as radioactive material are defined by the
dangerous goods regulations as any material containing radionuclides where both
the activity concentration and the total activity in the consignment exceeds
certain pre-defined values.
Note : A
radionuclide is an atom with an unstable nucleus and which consequently is
subject to radioactive decay.
Is Dangerous Goods Class 7 having a packing group?
Before answering this question, I need to give you an idea about the meaning of "packing group", it is an indication of the relative degree of danger presented by various articles and substances within some dangerous goods classes or divisions. Usually, dangerous goods regulations give roman numerals as the following:
I for high danger
II
for medium danger
III for low danger
Now, I can answer this question, packing
group not apply to this Dangerous Goods Class. There are special packing
requirements for class 7 hazardous materials. Packing requirement donate the
maximum activity (quantity) limits for these packages types.
You may ask!
Is there division within Dangerous Goods Class 7, Radioactive Materials?
●
Radioactive
Materials Category I - White [RRW]
●
Radioactive
Materials Category II - Yellow [RRY]
●
Radioactive
Materials Category III - Yellow [RRY]
Lets start.
Radioactive Material Category I - White [RRW]
Radioactive material with low radiation level on the package surface. No transport index indicated.
|
Not more than 0.005 mSv/h (0.5 mrem/h) |
Transport
index
|
0 Zero |
|
Category |
IATA IMP CODE |
|
Category I - White |
RRW |
 |
| Category I - White [RRW] | Radioactive Placard |
Radioactive Material Category II - Yellow [RRY]
Maximum
surface radioactive level in mSv/h (mrem/h)
|
more
than 0.005 mSv/h (0.5 mrem/h) but not more than 0.05 mSv/h
(50 mrem/h) |
Transport
index
|
More than 0 but not more than 1 |
|
Category |
IATA IMP CODE |
|
Category II - Yellow |
RRY |
 |
| Category II - Yellow [RRY] | Radioactive Placard |
Radioactive
Material Category III - Yellow [RRY]
exceeding 1 but not more than 10.
Maximum
surface radioactive level in mSv/h (mrem/h)
|
more
than 0.05 mSv/h (50 mrem/h) but not more than 2 mSv/h (200
mrem/h) |
Transport
index
|
More than 1 but not more than 10 |
|
Category |
IATA IMP CODE |
|
Category III - Yellow |
RRY |
Radioactive material fissile Criticality Safety Index
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Criticality
safety index labels must be used in addition to the appropriate radioactive
labels to provide control over accumulation of packages or overpacks containing
fissile material
 |
Fissile material | Radioactive Placard |
This video will explain the class 7 hazardous material, radioactive materials in a simple way.
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