Loading...
HSChapter 90
U.S. imports of physical & chemical analysis instruments — other (viscosity, porosity, nmr, electrochemical, etc.) (HS 902789) totaled $120.7M in June 2026, traded with 75 countries.
Importers of Physical & Chemical Analysis Instruments — Other (Viscosity, Porosity, NMR, Electrochemical, etc.) paid $7.3M in duties in June 2026 — an effective duty rate of 11% on $67.7M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Nuclear magnetic resonance instruments (9027892500), electrochemical analyzers (9027893100), and a wide array of instruments measuring viscosity, porosity, surface tension, and thermal or acoustic properties are consolidated in this residual analytical-instrument heading. Malaysia leads US import supply — a notable feature driven by the presence of major semiconductor and life-science instrument manufacturing operations there — followed by Germany, China, and Switzerland. The heading's breadth and the high unit values of NMR systems and electrochemical workstations make correct 10-digit classification critical, as several lines carry different Section 301 exposure depending on origin.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
A benchtop NMR used for chemical analysis or quality control classifies under 9027.89 (specifically 9027892500), not heading 9018. Heading 9018 is reserved for instruments used in medical, surgical, dental, or veterinary practice. An NMR marketed and used exclusively for clinical diagnostic imaging (MRI) would fall under 9018, but laboratory and industrial NMR spectrometers belong in Chapter 90 under 9027.89.
To support classification under 9027893100 (electrochemical instruments), importers should provide manufacturer specifications confirming the instrument operates by measuring electrical properties of a chemical system — such as potentiostats, galvanostats, pH meters with analytical output, or conductivity analyzers. Instruments that measure physical properties (viscosity, surface tension) without an electrochemical operating principle belong in the physical analysis lines. A technical datasheet and, for high-value entries, a binding ruling are the recommended documentation strategy.
Supplier Network
Get discovered by U.S. importers searching for HS 902789 — Physical & Chemical Analysis Instruments — Other (Viscosity, Porosity, NMR, Electrochemical, etc.). Be the first supplier listed.
Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| NETHERLANDS | $2.2M | $65.5M | +$63.3M |
| MALAYSIA | $28.3M | $744K | -$27.6M |
| GERMANY | $11.7M | $12.9M | +$1.3M |
| CHINA | $8.7M | $12.2M | +$3.5M |
| TAIWAN | $3.7M | $14.5M | +$10.8M |
ELECTROCHEMICAL INSTRUMENTS AND APPARATUS
HS 9027893100
ELEC CHEMICAL ANALYSIS INST,EXC USE OPT RADIATIONS
HS 9027894530
PHYS ANALYSIS INST, EXC OPTICAL RADIATIONS, NESOI
HS 9027893500
INST, MEASURING/CHECKING VISCOSITY ETC, NESOI
HS 9027898000
OTH INST, MEASURING/CHECKING VISCOSITY ETC,NESOI
HS 9027898090
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 9027894530 | ELEC CHEMICAL ANALYSIS INST,EXC USE OPT RADIATIONS | $67.6M | 3.12% | 28.95% | $2.1M |
| 9027898090 | OTH INST, MEASURING/CHECKING VISCOSITY ETC,NESOI | $23.5M | 10.89% | 91.15% | $2.6M |
| 9027894560 | ELEC PHYSICAL ANALYSIS INST,EXC USE OPT RADIATIONS | $8.4M | 11.45% | 98.13% | $961K |
| 9027894590 | OTH ELEC INST,MEASURING/CHECKING VISCOSITY, ETC | $8.3M | 8.56% | 77.30% | $708K |
| 9027892500 | NUCLEAR MAGNETIC RESONANCE INST EXC HEADING 9018 | $6.9M | 6.01% | 98.43% | $414K |
| 9027898030 | OTHER CHEMICAL ANALYSIS INSTRUMENTS, NESOI | $3.3M | 9.31% | 81.57% | $309K |
| 9027898060 | OTHER PHYSICAL ANALYSIS INSTRUMENTS, NESOI | $2.7M | 9.21% | 94.31% | $253K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
INSTR & APPL F MEDICAL SURGICAL DENTAL VET, NESOI
HS 901890
MED NEEDLES. NESOI, CATHERERS ETC AND PARTS ETC
HS 901839
ELECTRO-DIAGNOSTIC APPARATUS NESOI, AND PARTS ETC.
HS 901819
OZONE,OXYGEN,ETC THERAPY, RESPIRATION APPARATUS,PT
HS 901920
ARTIFICIAL JOINTS & PARTS & ACCESSORIES THEROF,NES
HS 902139
MEAS CHECKNG INSTRUMENT & MACH, NOT OPTICAL, NESOI
HS 903180
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $17.0M | $26.2M | +$9.2M |
| Kentucky | -- | $37.1M | +$37.1M |
| Arizona | $21.6M | $6.4M | -$15.2M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| CLEVELAND, OH | $4.7M | $61.7M | +$57.0M |
| JFK INTERNATIONAL AIRPORT, NY | $7.2M | $28.5M | +$21.3M |
| CHICAGO, IL | $15.7M | $14.5M | -$1.2M |