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Magnet air transport precautions

by AOMag | post a comment

AOMAG's customers are located in 76 countries around the world. Customers at home and abroad need to send powerful magnets to the customer's place after purchasing strong magnets. Many customers often ask if strong magnets can be transported by air.

The magnet can be transported by air, but it needs to be commissioned by a specialized agency (Technical Supervision Bureau) for degaussing. The so-called degaussing, in fact, the magnetic does not disappear, but the reassembly of the items in the unit package, so that the magnetic display of the unit package is displayed in the country. Prescribed aviation safety transport requirements.

General requirements for the international conditions of air cargo transportation, magnets and magnets;
The shipper shall comply with the IATA Packing Instruction 902. The following requirements are required. To prevent interference with aircraft instruments, especially compass instruments, the shipper shall package the magnetic materials in the following manner: instruments and devices such as magnetrons and illuminometers. The opposite poles must be placed opposite each other. The permanent magnet material must be equipped with a magnetically-loaded armature or a screen to prevent the magnetic field from causing deviation of the compass meter. Each package of magnetic material must be properly marked and labeled in accordance with the provisions of Chapter 7 of the IATA Dangerous Goods Regulations. Ensure that the magnetic field strength measured at 4.6 m (15 ft) from the surface of the package does not exceed 0.418 A/m (0.00525 gauss) before shipment.

The above is the test standard for magnetic materials as dangerous goods. Domestic customers use magnetic materials as non-dangerous goods for air transportation. The shielding requirements: need to ensure that the goods are measured 2.7 meters away from the surface of the package before shipment. The magnetic field strength does not exceed 200 nT (ie equal to 2 mGs = 0.002 Gs). In order to ensure the measurement accuracy of the Gauss meter and to ensure that it is not affected by the geomagnetic field as much as possible, it is generally recommended that the customer measure at a distance of 0.5 m from the surface of the package. According to the theory, the square of the distance is inversely proportional to the strength of the magnetic field, that is, the closer the distance is measured. The greater the strength of the magnetic field. For example, the magnetic field is measured at 2.7 meters and the magnetic field is 0.002 Gs. According to the theoretical formula of 'the square of the distance is inversely proportional to the magnetic field strength', it is strictly measured at a distance of 0.5 m from the surface of the package. The size of the magnetic field should be 0.05832 Gs. . The distance is shortened by 5.4 times, that is, the magnetic field is enlarged by 29.16 times.

Customer case: The customer produces a number of powerful magnets of the N35 model but cannot be transported because it does not meet the packaging requirements of the International Aviation Association. The magnets are transported by air and express, and the items are defined as dangerous goods, and the export encounters difficulties.

However, the delivery date is about to arrive. In fact, it can solve such a problem completely. It is to go to Hong Kong DHL Express. DHL, which has been transferred from a third party to Hong Kong, seems to be able to completely solve this problem. It is also necessary to make magnetic isolation packaging as required.






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