Harmonized System Code Classification

The first two digits of the HS code starting with 90 typically represent optical, photographic, cinematographic, measuring, testing, analyzing, and control instruments and their parts and accessories.

Specifically, the 90 category includes the following main categories:

• Optical instruments: Including glasses, telescopes, microscopes, prisms, lenses, etc.
• Photographic and cinematographic instruments: Including cameras, video cameras, film, negatives, developing equipment, etc.
• Measuring and testing instruments: Including instruments for measuring length, weight, angle, temperature, pressure, flow, and other variables.
• Analyzing instruments: Including spectrometers, chromatographs, analytical balances, etc.
• Control instruments: Including automatic control systems, industrial automation equipment, etc.
• Medical, surgical, and dental instruments: Including some precision optical and electronic instruments.

Why is it category 90?

These products share common characteristics of high precision, high technical content, and reliance on optical, electronic, or mechanical principles, and are mainly used in scientific research, industrial production, healthcare, safety inspection, and other fields. Therefore, customs classify them into category 90 for easier management and statistics.

In summary, HS codes starting with 90 represent precision instruments and meters, typically used in situations requiring precise measurement, analysis, control, or observation.

First four digits explanation: 9026:

Instruments and devices for measuring or checking the flow of liquids or gases, level, pressure, or other variables (e.g., flow meters, level meters, pressure gauges, heat meters), excluding instruments and devices under headings 9014, 9015, 9028, or 9032; their parts and accessories.

6-digit explanation: Classification: 9026.20

Meaning: Instruments and devices for measuring or checking the flow of liquids or gases, level, pressure, or other variables (e.g., flow meters, level meters, pressure gauges, heat meters), excluding instruments and devices under headings 9014, 9015, 9028, or 9032; parts and accessories: --> for measuring or checking pressure: --> other

8-10 digit explanation: hscode: 9026208000 Classification: Instruments and devices for measuring or checking the flow of liquids or gases, level, pressure, or other variables (e.g., flow meters, level meters, pressure gauges, heat meters), excluding instruments and devices under headings 9014, 9015, 9028, or 9032; parts and accessories: --> for measuring or checking pressure: --> other Explanation: This HS code belongs to instruments and devices for measuring or checking the flow of liquids or gases, level, pressure, or other variables. Specifically, it refers to other types of instruments and devices used for measuring or checking pressure. It excludes instruments and devices under headings 9014, 9015, 9028, or 9032 and their parts and accessories.

Examples of products: * Pressure sensors * Pressure transducers * Pressure gauges * Pressure switches * Pressure regulators * Pressure measuring instruments * Pressure monitoring devices * Pressure testing equipment * Pressure control valves * Pressure calibration devices