Differential Scanning Calorimeter (DSC) from China

A differential scanning calorimeter measures heat flow differences between a sample and reference as a function of temperature, used for analyzing phase transitions and thermal stability in materials like polymers. It falls under HTS 9027.50.8020 as a thermal analysis instrument employing optical radiation for precise temperature and heat capacity measurements. Commonly used in quality control for pharmaceuticals and plastics.

Duty Rate — China → United States

35%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]

Import Tips

Verify CE marking or FDA compliance if destined for medical research applications to avoid customs holds

Include detailed technical specifications and calibration certificates in documentation to confirm classification as thermal analysis apparatus

Beware of misclassification as general lab equipment under 9027.80; ensure optical radiation use is documented