9027.90.54.00 - Of electrophoresis instruments not incorporating an optical or other measuring device

This HTS classification, 9027.90.54.00, specifically covers parts and accessories that are integral to electrophoresis instruments, provided these parts and accessories do not incorporate optical or other measuring devices themselves. Electrophoresis is a technique used to separate molecules based on their size and charge by applying an electric field. Therefore, items falling under this subheading would include components like electrophoresis chambers, power supply connections, gel casting accessories, or buffer solution containers that are designed for use with electrophoresis apparatus but do not perform any independent measurement functions.

This category is distinguished from its sibling categories by its explicit exclusion of components that include optical or other measuring capabilities. For instance, sibling category 9027.90.56 covers parts and accessories for a broader range of instruments listed in subheadings 9027.20, 9027.30, 9027.50, 9027.81, or 9027.89, which may include instruments with integrated measurement devices. Category 9027.90.59, "Other," would encompass parts and accessories not specifically covered by the other "parts and accessories" subheadings within 9027.90.

As a leaf node, 9027.90.54.00 does not have further subdivisions. Classification into this subheading relies on accurately identifying the part or accessory as pertaining to electrophoresis instruments and confirming the absence of integrated measuring or optical functionalities within the component itself. This ensures that only fundamental, non-measuring accessories for electrophoresis are categorized here, maintaining a precise distinction within the broader "parts and accessories" for analytical instruments.