Chapter 90 covers optical, photographic, cinematographic, measuring, checking, medical or surgical instruments and apparatus, and precision instruments and apparatus; parts and accessories thereof. Goods of this chapter generally have the characteristics of being technology-intensive and high value-added. When classifying, it is necessary to focus on determining whether their function falls under measurement, checking, analysis, or control purposes. Heading 9027 covers various physical and chemical analysis instruments, including chromatographs, spectrometers, spectrophotometers, mass spectrometers, etc.; and instruments for measuring or checking physical quantities such as viscosity, porosity, expansion coefficient, surface tension, etc. Chromatographs are an important subheading therein, using the principle of partition to separate mixtures and conduct analysis. First 2 digits 90 = Chapter 90 (optical, measuring, medical and other precision instruments); digits 3-4 27 = heading 9027 (physical and chemical analysis instruments); digits 5-6 20 = subheading 902720, specifically referring to chromatographs and electrophoresis instruments. Note: subheading 902720 includes gas chromatographs, liquid chromatographs, electrophoresis instruments, etc., but vehicle-mounted chromatographs must meet the conditions for installation and use in motor vehicles. If it is only a laboratory chromatograph, it is classified under other subdivisions within 902720. This commodity is a vehicle-mounted chromatograph, and its core function is chromatographic analysis, which conforms to the description of heading 9027 as 'physical and chemical analysis instruments.' It is not classified under 9025 (densimeters, etc.) or 9026 (flow meters, etc.) because its main use is separation and analysis rather than measuring a single physical quantity; nor is it classified under 8479 (machines) because it is a precision analytical instrument.
Chapter
Chapter 90 covers optical, photographic, cinematographic, measuring, checking, medical or surgical instruments and apparatus, and precision instruments and apparatus; parts and accessories thereof. Goods of this chapter generally have the characteristics of being technology-intensive and high value-added. When classifying, it is necessary to focus on determining whether their function falls under measurement, checking, analysis, or control purposes.
Heading
Heading 9027 covers various physical and chemical analysis instruments, including chromatographs, spectrometers, spectrophotometers, mass spectrometers, etc.; and instruments for measuring or checking physical quantities such as viscosity, porosity, expansion coefficient, surface tension, etc. Chromatographs are an important subheading therein, using the principle of partition to separate mixtures and conduct analysis.
Digit Breakdown
First 2 digits 90 = Chapter 90 (optical, measuring, medical and other precision instruments); digits 3-4 27 = heading 9027 (physical and chemical analysis instruments); digits 5-6 20 = subheading 902720, specifically referring to chromatographs and electrophoresis instruments. Note: subheading 902720 includes gas chromatographs, liquid chromatographs, electrophoresis instruments, etc., but vehicle-mounted chromatographs must meet the conditions for installation and use in motor vehicles. If it is only a laboratory chromatograph, it is classified under other subdivisions within 902720.
Classification Basis
This commodity is a vehicle-mounted chromatograph, and its core function is chromatographic analysis, which conforms to the description of heading 9027 as 'physical and chemical analysis instruments.' It is not classified under 9025 (densimeters, etc.) or 9026 (flow meters, etc.) because its main use is separation and analysis rather than measuring a single physical quantity; nor is it classified under 8479 (machines) because it is a precision analytical instrument.
📝 Declaration Elements
Product name: The specific name of the declared commodity should include 'vehicle-mounted chromatograph' and the brand/model, avoiding the generic writing of 'chromatograph.' Use: Explain the specific application scenario, such as vehicle-mounted environmental monitoring, mobile laboratories, etc., and it is necessary to reflect the vehicle-mounted characteristics. Working principle: Briefly describe the chromatographic separation principle, such as gas chromatography or liquid chromatography, and explain the detector type. Brand: Fill in the manufacturer or brand name, such as Agilent, Shimadzu, etc. Model: The specific model, used to distinguish technical parameters and classification. For motor vehicle use: Clearly state whether it is designed to be installed and used on a motor vehicle. This is the key to classification under this code. Detection target: Explain the type of gas or liquid sample analyzed, such as ambient air, water quality, etc. Main components: List the key components, such as the injection system, chromatographic column, detector, data processing unit, etc. Product name: vehicle-mounted gas chromatograph; Use: installed in an environmental monitoring vehicle for on-site detection of volatile organic compounds; Working principle: gas chromatography, hydrogen flame ionization detector; Brand: Agilent; Model: 990; For motor vehicle use: yes; Detection target: ambient air; Main components: injection port, capillary chromatographic column, FID detector, data acquisition system. Failure to indicate 'vehicle-mounted' leads to classification under the ordinary chromatograph subheading. The working principle is described unclearly, making it impossible to determine it as a chromatograph. Confusing a vehicle-mounted chromatograph with a vehicle-mounted spectrometer, incorrectly classifying it under 902730.
Product name
The specific name of the declared commodity should include 'vehicle-mounted chromatograph' and the brand/model, avoiding the generic writing of 'chromatograph.'
⚠️ Writing only 'chromatograph' without indicating vehicle-mounted, leading to classification disputes.
Use
Explain the specific application scenario, such as vehicle-mounted environmental monitoring, mobile laboratories, etc., and it is necessary to reflect the vehicle-mounted characteristics.
⚠️ Writing the use as 'laboratory analysis' without mentioning vehicle-mounted, which may result in classification under a non-vehicle-mounted subheading.
Working principle
Briefly describe the chromatographic separation principle, such as gas chromatography or liquid chromatography, and explain the detector type.
⚠️ Failure to explain the principle makes it impossible to determine whether it belongs to a chromatograph.
Brand
Fill in the manufacturer or brand name, such as Agilent, Shimadzu, etc.
⚠️ Confusing brand with model, or filling it in incorrectly.
Model
The specific model, used to distinguish technical parameters and classification.
⚠️ Missing or incomplete model.
For motor vehicle use
Clearly state whether it is designed to be installed and used on a motor vehicle. This is the key to classification under this code.
⚠️ Failure to declare vehicle-mounted, resulting in classification as an ordinary chromatograph.
Detection target
Explain the type of gas or liquid sample analyzed, such as ambient air, water quality, etc.
⚠️ The detection target does not match the principle.
Main components
List the key components, such as the injection system, chromatographic column, detector, data processing unit, etc.
⚠️ Omitting key components, affecting the dutiable value.
Example： Product name: vehicle-mounted gas chromatograph; Use: installed in an environmental monitoring vehicle for on-site detection of volatile organic compounds; Working principle: gas chromatography, hydrogen flame ionization detector; Brand: Agilent; Model: 990; For motor vehicle use: yes; Detection target: ambient air; Main components: injection port, capillary chromatographic column, FID detector, data acquisition system.
Common Mistakes：
Failure to indicate 'vehicle-mounted' leads to classification under the ordinary chromatograph subheading.
The working principle is described unclearly, making it impossible to determine it as a chromatograph.
Confusing a vehicle-mounted chromatograph with a vehicle-mounted spectrometer, incorrectly classifying it under 902730.
🎯 Classification Logic
Core basis for classification: 1) whether the commodity's function is chromatographic analysis; 2) whether it is designed for vehicle-mounted use; 3) whether it belongs to the physical and chemical analysis instruments of heading 9027. According to the Explanatory Notes to the Import and Export Tariff, a chromatograph is an instrument that uses the principle of partition to separate mixtures, and the vehicle-mounted type must have vehicle installation adaptability. If it is only movable but not vehicle-mounted, it is still classified under 902720. 902710 Gas or smoke analysis apparatus: 902710 is used for directly analyzing gas composition, such as flue gas analyzers, and does not involve a chromatographic separation process; although a vehicle-mounted chromatograph also analyzes gases, it is based on chromatographic separation, so it is classified under 902720. 902730 Spectrometers, spectrophotometers: 902730 uses spectral principles for analysis, such as infrared spectrometers; a vehicle-mounted chromatograph uses chromatographic separation, which is a different principle and must not be confused. 902750 Other apparatus using optical radiation: 902750 covers analytical instruments based on optical radiation, such as ultraviolet fluorescence instruments; if a chromatograph uses an optical detector, it is still classified under 902720 because the main principle is chromatographic separation. 902780 Other physical and chemical analysis instruments: 902780 is a residual subheading for physical and chemical analysis instruments not otherwise specified; chromatographs are already explicitly named, so they are not classified under 902780. Does the commodity use the principle of chromatographic separation? Is it designed to be installed and used on a motor vehicle? Does it belong to the physical and chemical analysis instruments of heading 9027? Is it confused with subheadings such as 902710 and 902730? Are the declaration elements complete and accurate?
Basis
Core basis for classification: 1) whether the commodity's function is chromatographic analysis; 2) whether it is designed for vehicle-mounted use; 3) whether it belongs to the physical and chemical analysis instruments of heading 9027. According to the Explanatory Notes to the Import and Export Tariff, a chromatograph is an instrument that uses the principle of partition to separate mixtures, and the vehicle-mounted type must have vehicle installation adaptability. If it is only movable but not vehicle-mounted, it is still classified under 902720.
Confused Codes：
902710 - Gas or smoke analysis apparatus
902710 is used for directly analyzing gas composition, such as flue gas analyzers, and does not involve a chromatographic separation process; although a vehicle-mounted chromatograph also analyzes gases, it is based on chromatographic separation, so it is classified under 902720.
902730 - Spectrometers, spectrophotometers
902730 uses spectral principles for analysis, such as infrared spectrometers; a vehicle-mounted chromatograph uses chromatographic separation, which is a different principle and must not be confused.
902750 - Other apparatus using optical radiation
902750 covers analytical instruments based on optical radiation, such as ultraviolet fluorescence instruments; if a chromatograph uses an optical detector, it is still classified under 902720 because the main principle is chromatographic separation.
902780 - Other physical and chemical analysis instruments
902780 is a residual subheading for physical and chemical analysis instruments not otherwise specified; chromatographs are already explicitly named, so they are not classified under 902780.
Self-Check：
✓ Does the commodity use the principle of chromatographic separation?
✓ Is it designed to be installed and used on a motor vehicle?
✓ Does it belong to the physical and chemical analysis instruments of heading 9027?
✓ Is it confused with subheadings such as 902710 and 902730?
✓ Are the declaration elements complete and accurate?
❓ FAQ
Are the HS codes for vehicle-mounted chromatographs and ordinary laboratory chromatographs the same? They are not the same. Ordinary laboratory chromatographs are classified under 902720, but if a vehicle-mounted chromatograph is specially designed for vehicles, it is still classified under 902720 because the subheading does not subdivide whether it is vehicle-mounted or not. However, note that if a vehicle-mounted chromatograph also has other functions, it may affect classification. When declaring, the vehicle-mounted use must be indicated. How can it be determined whether a vehicle-mounted chromatograph is classified under 902720? The key is to look at two points: first, whether the working principle is chromatographic separation; second, whether it is suitable for vehicle-mounted use. If both are satisfied, it is classified under 902720. If it is only movable but not vehicle-mounted, it is also classified under 902720 because the subheading does not distinguish. What is the most error-prone point when declaring a vehicle-mounted chromatograph? The most common error is failure to indicate 'vehicle-mounted,' which leads customs to question the classification; the next is confusing a chromatograph with a spectrometer and incorrectly classifying it under 902730; there is also unclear description of the working principle, making it impossible to determine it as a chromatograph. What is the tariff rate for vehicle-mounted chromatographs? Tariff rates change, so it is recommended to consult the latest 'Customs Import and Export Tariff of the People's Republic of China' or check through the General Administration of Customs website or the single window. Usually the most-favored-nation rate is between 0-5%, but the actual query shall prevail. What import procedures are required for vehicle-mounted chromatographs? Generally, contracts, invoices, packing lists, bills of lading, declaration elements, etc. are required. If compulsory certification (such as CCC) is involved, certificates must be provided. For specifics, consult a customs broker or customs. Can a vehicle-mounted chromatograph be classified under 902780? No. 902780 is a residual subheading for 'other physical and chemical analysis instruments,' while chromatographs are already explicitly named under 902720, so priority should be given to classification under 902720. How can a vehicle-mounted chromatograph be distinguished from a vehicle-mounted spectrometer? A vehicle-mounted chromatograph is based on the principle of chromatographic separation and is used to separate mixtures; a vehicle-mounted spectrometer is based on spectral principles and is used to analyze material composition. The two have different principles and are classified under 902720 and 902730 respectively. If a vehicle-mounted chromatograph is second-hand equipment, does the HS code change? The HS code does not change and remains 902720. However, for the import of second-hand equipment, attention must be paid to customs valuation, inspection and quarantine requirements, and it may be necessary to provide a certificate of origin, pre-shipment inspection certificate, etc.
Q: Are the HS codes for vehicle-mounted chromatographs and ordinary laboratory chromatographs the same?
A: They are not the same. Ordinary laboratory chromatographs are classified under 902720, but if a vehicle-mounted chromatograph is specially designed for vehicles, it is still classified under 902720 because the subheading does not subdivide whether it is vehicle-mounted or not. However, note that if a vehicle-mounted chromatograph also has other functions, it may affect classification. When declaring, the vehicle-mounted use must be indicated.
Q: How can it be determined whether a vehicle-mounted chromatograph is classified under 902720?
A: The key is to look at two points: first, whether the working principle is chromatographic separation; second, whether it is suitable for vehicle-mounted use. If both are satisfied, it is classified under 902720. If it is only movable but not vehicle-mounted, it is also classified under 902720 because the subheading does not distinguish.
Q: What is the most error-prone point when declaring a vehicle-mounted chromatograph?
A: The most common error is failure to indicate 'vehicle-mounted,' which leads customs to question the classification; the next is confusing a chromatograph with a spectrometer and incorrectly classifying it under 902730; there is also unclear description of the working principle, making it impossible to determine it as a chromatograph.
Q: What is the tariff rate for vehicle-mounted chromatographs?
A: Tariff rates change, so it is recommended to consult the latest 'Customs Import and Export Tariff of the People's Republic of China' or check through the General Administration of Customs website or the single window. Usually the most-favored-nation rate is between 0-5%, but the actual query shall prevail.
Q: What import procedures are required for vehicle-mounted chromatographs?
A: Generally, contracts, invoices, packing lists, bills of lading, declaration elements, etc. are required. If compulsory certification (such as CCC) is involved, certificates must be provided. For specifics, consult a customs broker or customs.
Q: Can a vehicle-mounted chromatograph be classified under 902780?
A: No. 902780 is a residual subheading for 'other physical and chemical analysis instruments,' while chromatographs are already explicitly named under 902720, so priority should be given to classification under 902720.
Q: How can a vehicle-mounted chromatograph be distinguished from a vehicle-mounted spectrometer?
A: A vehicle-mounted chromatograph is based on the principle of chromatographic separation and is used to separate mixtures; a vehicle-mounted spectrometer is based on spectral principles and is used to analyze material composition. The two have different principles and are classified under 902720 and 902730 respectively.
Q: If a vehicle-mounted chromatograph is second-hand equipment, does the HS code change?
A: The HS code does not change and remains 902720. However, for the import of second-hand equipment, attention must be paid to customs valuation, inspection and quarantine requirements, and it may be necessary to provide a certificate of origin, pre-shipment inspection certificate, etc.
⚠️ Disclaimer: HS code classification, declaration elements, tariff rates and regulatory conditions on this page are for reference only and do not constitute legal advice on customs classification. Tariff rates and regulations are subject to change; the latest announcements from the General Administration of Customs and on-site determinations shall prevail. Please consult professional customs brokers or customs authorities before import/export.