Magnetic inspection, abbreviated as magnetic inspection, is mainly aimed at measuring the stray magnetic field strength on the surface of the outer packaging of goods, and judging the air transportation magnetic hazard of the goods based on the measurement results. If the magnetic substance itself may cause magnetization effects on other items, thereby interfering with the navigation system and control signals of the aircraft, according to the International Air Transport Association (IATA), magnetic goods are classified as Class 9 dangerous goods and must be restricted during transportation.

Magnet, magnet, magnet steel, magnetic nail, magnetic head, magnetic strip, magnetic sheet, magnetic block, ferrite core, aluminum nickel cobalt, electromagnet, magnetic fluid seal ring, ferrite, oil cut electromagnet, rare earth permanent magnet (motor rotor), coil, etc.

Speaker, Loudspeaker, Loudspeaker Sound System/Speaker, Multimedia Speaker, Sound System, CD, Recorder, Mini Sound System Combination, Speaker Accessories, Microphone, Car Speaker, Microphone, Receiver, Buzzer, Muffler, Projector Sounder, VCD, DVD, etc.

Hair dryers, televisions, mobile phones, motors, motor accessories, toy magnets, magnetic toy parts, magnetic processed products, magnetic health pillows, magnetic health products, compasses, car inflators, drivers, reducers, rotating parts, inductor components, magnetic coil sensors, electric gearboxes, relays, multimeters, magnetrons, computers and accessories, etc.

Magnetic detection only detects the magnetic strength of goods at a certain distance and does not eliminate the magnetism of the goods. The original packaging of the goods will not be damaged during inspection. Just need to detect the stray magnetic field on the surface of each item of goods.。。。。。。。

If the magnetic detection of the goods is not qualified and we need to provide technical services, the staff will conduct an unpacking inspection of the goods under the customer's commission, and then provide relevant reasonable suggestions based on the specific situation. If the shielding can meet the requirements of air transportation, the goods can be shielded according to the customer's commission and relevant fees can be charged.

The shielding provided by the testing company does not eliminate the magnetism of goods with excessive magnetic fields, which has little impact on the performance of the product. However, the specific operation will be communicated with the customer to avoid causing losses to the customer. Conditional customers can also retrieve the goods and handle them themselves before sending them for inspection.

According to IATA DGR packaging instruction 902, if the maximum magnetic field strength at a distance of 2.1m (7ft) from the surface of the tested object exceeds 0.159A/m (200nT), but any magnetic field strength at a distance of 4.6m (15ft) from the surface of the tested object is less than 0.418A/m (525nT), the goods can be transported as dangerous goods. If this requirement cannot be met, the item cannot be shipped by air (only sea freight can be arranged).

For magnetic inspection, the cost is calculated based on the minimum measurement unit of SLAC (usually the number of boxes). In import and export logistics, magnetic inspection fees belong to airport miscellaneous fees, so except for EXW terms, magnetic inspection fees are generally borne by the shipper.