2710.19.45 - Mixtures of hydrocarbons not elsewhere specified or included, which contain by weight not over 50 percent of any single hydrocarbon compound

This HTS subheading, 2710.19.45, encompasses mixtures of hydrocarbons that are not specifically classified elsewhere within Chapter 27. The defining characteristic for inclusion here is that these mixtures must contain by weight not over 50 percent of any single hydrocarbon compound. This criterion ensures that the product is a genuine mixture rather than a predominantly single-substance material.

Distinguishing this category from its sibling, 2710.19.90, which is also an "Other" classification, relies on the specific composition rules. While both fall under "Other" petroleum oils and related preparations, 2710.19.45 is reserved for mixtures where no single hydrocarbon compound exceeds 50% by weight. This is in contrast to the broader "Other" classification, which would capture mixtures not meeting this specific compositional threshold or other distinct subheadings.

Within 2710.19.45, further subdivisions exist to refine the classification. The subcategories distinguish between specialized uses. "White mineral oil" represents a distinct subcategory, referring to highly refined mineral oils used in applications such as pharmaceuticals, cosmetics, and food processing. The remaining classifications under 2710.19.45.45 and 2710.19.45.90 further break down the remaining eligible mixtures based on their specific intended use or properties, such as insulating or transformer oils.