A Guide to Air Cargo Magnetic Inspection (Updated for 2022)

Magnetic Inspection

Magnetic field will interfere with the aircraft's navigation system and control signals, so magnetic cargo will be restricted in the receipt and shipment, and some cargo with magnetic materials need magnetic inspection to be transported by air. We will tell you more about magnetic inspection this time.




What is Magnetic Inspection?

Magnetic inspection is mainly for the measurement of stray magnetic field strength on the surface of the outer packaging of goods, and based on the measurement results to determine the magnetic hazard of the cargo air transport. If the magnetic material itself may have a magnetizing effect on other items and thus interfere with the aircraft's navigation system and control signals, the magnetic cargo is classified as Class 9 dangerous goods according to the International Air Transport Association (IATA) and must be restricted at the time of receipt and shipment.


Which Goods Need Magnetic Inspection?

Magnetic Materials

Magnets, magnetic pegs, magnetic heads, magnetic strips, magnetic sheets, magnetic blocks, ferrite cores, Alnico, electromagnets, magnetic fluid seals, ferrite, oil break electromagnets, rare earth permanent magnets (motor rotors), coils, etc.


Audio Equipment

Speakers, speakers audio, multimedia speakers, audio, CD, recorder, mini audio combination, speaker accessories, microphone, car speakers, microphone, receiver, buzzer, muffler, projector X-Ray, VCD, DVD, etc.


Other

Hair dryer, TV set, cell phone, motor, motor parts, toy magnet, magnetic toy parts, magnet processing products, magnetic health pillow, magnetic health care products, compass, car inflatable pump, drive, reducer, rotating parts, inductor components, magnetic coil sensor, electric gear, relay, multimeter, magnetron, computer and accessories, etc.


Is the Magnetic Inspection Demagnetized?

Magnetic detection only detects the magnetic size of the goods at a certain distance, and does not eliminate the magnetic properties of the goods. The detection will not damage the original packaging of the goods. Only the surface of each piece of cargo needs to be detected for stray magnetic fields.


What if I fail the inspection?

If the magnetic detection of the goods do not pass the need for us to provide technical services, the staff will be commissioned by the customer to open the goods to view, and then according to the specific circumstances of the relevant reasonable proposals. If the shielding can meet the requirements of air transportation, we can shield the goods according to the customer's commission and charge the relevant fees.


Will the Shield Affect the Export of Goods?

The shielding provided by the testing company is not the magnetic field exceeds the magnetic elimination of the goods, the impact on the performance of the product is not significant, but the specific operation will be communicated with the customer to avoid causing losses to customers. Customers who are in a position to do so can also pick up the goods and handle them on their own before sending them for inspection.


According to IATA DGR packing instruction 902: If the maximum magnetic field strength at 2.1m (7ft) from the surface of the object under test exceeds 0.159A/m (200nT), but the arbitrary magnetic field strength at 4.6m (15ft) from the surface of the object under test is less than 0.418A/m (525nT), then the goods can be received and shipped as dangerous goods. If this requirement cannot be met, then the goods cannot be transported by air (only by sea).


What is the Magnetic Inspection Fee?

Magnetic inspection is calculated by the smallest unit of measurement of SLAC (usually the number of boxes). In import and export logistics, magnetic inspection fee belongs to the airport miscellaneous fees, so except for the terms of EXW, magnetic inspection fee is generally the responsibility of the shipper.


From STU Supply Chain: A Guide to Air Cargo Magnetic Inspection


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