When shipping magnets by air, there are several key considerations to keep in mind to ensure safe and compliant transportation. Some important factors include:

Magnetic Field Strength Limits:

According to IATA Dangerous Goods Regulations (DGR), the magnetic field strength of the packaged magnets must be less than 0.00525 gauss (5.25 milligauss) at a distance of 15 feet (4.6 meters) from the package. If the magnetic field exceeds this limit, the package must be labeled as “MAGNETIZED MATERIAL” and follow additional dangerous goods shipping requirements.

Packaging and Shielding:

Magnets must be packaged in a way that reduces the magnetic field strength to the required levels. This often involves using shielding materials like iron sheets or boxes to contain the magnetic field. The packaging must also protect the magnets from damage during transit.

Labeling:

If the magnetic field strength exceeds 0.002 gauss (2 milligauss) at 7 feet (2.1 meters) from the package, the package must be labeled as “MAGNETIZED MATERIAL” . This alerts handlers to the presence of the magnetic materials.

Inspection and Certification:

The magnetic field strength of the packaged magnets must be measured and certified to meet the air shipping requirements. This is typically done by a dangerous goods specialist who will issue an Identification and Classification Report.

Restrictions on Quantity and Size:

There may be restrictions on the total quantity or size of magnets that can be shipped by air. These limits are set by the IATA DGR and should be checked before shipping.

Demagnetization:

In some cases, it may be necessary to demagnetize the magnets to reduce the magnetic field strength to acceptable levels for air transport.

By paying attention to these considerations, shippers can navigate the complexities of shipping magnets by air while prioritizing safety and regulatory compliance. If you’d like more details, feel free to ask!