Harmonized System Code Classification

90开头 HS 编码的商品 typically belong to Optical, photographic, cinematographic, measuring, checking, analyzing, and controlling instruments and apparatus, and parts and accessories thereof.

Specifically, the 90 class covers the following main categories:

• Optical instruments: Including glasses, telescopes, microscopes, prisms, lenses, etc.
• Photographic and cinematographic instruments: Including cameras, video cameras, film projectors, projectors, etc.
• Measuring instruments: Including instruments for measuring length, weight, capacity, angle, temperature, pressure, and so on.
• Checking and analyzing instruments: Including laboratory equipment, medical diagnostic equipment, chemical analysis instruments, etc.
• Controlling instruments: Including automatic control equipment, industrial automation equipment, etc.

Why is it 90 class?

These products are all related to precise measurement, observation, analysis, and control, and usually require high technical content and professional knowledge. They play an important role in scientific research, industrial production, medical care, environmental protection, and other fields.

Therefore, customs classify these products into the 90 class to facilitate specialized management and statistics of these high-tech, high-value-added products.

In short, the core characteristics of products with HS codes starting with 90 are precise measurement, observation, analysis, and control.

The first four digits explain: 9030 represents:

Oscilloscopes, spectrum analyzers, and other instruments and apparatus for measuring or checking electrical quantities, excluding instruments under heading 9028; instruments and apparatus for measuring or detecting α, β, γ, X-rays, cosmic rays, or other ionizing radiation; their parts and accessories.

The six-digit explanation: HS code: 9030.40

Classification: Oscillators, spectrum analyzers, and other instruments and apparatus for measuring or checking electrical quantities, excluding instruments under Chapter 9028; instruments and apparatus for measuring or detecting α, β, γ, X-rays, cosmic rays, or other ionizing radiation; their parts and accessories.

Meaning: Instruments and apparatus specially designed for telecommunications (e.g., crosstalk meters, gain meters, distortion factor meters, audiometers).

Eight to ten digits explanation: HS code: 9030400000 Classification: Oscillators, spectrum analyzers, and other instruments and apparatus for measuring or checking electrical quantities, excluding instruments under Chapter 9028; instruments and apparatus for measuring or detecting α, β, γ, X-rays, cosmic rays, or other ionizing radiation; their parts and accessories. Explanation: Instruments and apparatus specially designed for telecommunications (e.g., crosstalk meters, gain meters, distortion factor meters, audiometers).

Product examples:

• Oscilloscope
• Spectrum analyzer
• Audio analyzer
• Distortion meter
• Gain meter
• Crosstalk meter
• Audiometer
• Radiation detection instrument
• Telecommunications testing equipment
• Network analyzer