8540.60.00.20 - Not exceeding 30 cm

This HTS category, 8540.60.00.20, specifically classifies "Other cathode-ray tubes" that have a video display diagonal not exceeding 30 centimeters. These are typically smaller cathode-ray tubes (CRTs) used in various electronic devices. Examples include CRTs found in older portable televisions, small monitors, or specialized industrial viewing equipment where a compact display size is required. The defining characteristic for this classification is the physical dimension of the viewable screen.

This subcategory is distinguished from its sibling categories by its precise measurement of the video display diagonal. HTS 8540.60.00.65 covers similar cathode-ray tubes with a display diagonal exceeding 30 cm but not exceeding 36 cm, while HTS 8540.60.00.80 encompasses those with diagonals greater than 36 cm. Therefore, the critical differentiator for classification under 8540.60.00.20 is that the measurement of the screen's diagonal must be 30 cm or less.

As this is a leaf node within the HTS structure, there are no further subcategories that subdivide this specific classification. The classification is solely determined by the presence of an "other cathode-ray tube" and its video display diagonal measurement falling within the specified range.