9027.30 - Spectrometers, spectrophotometers and spectrographs using optical radiations (ultraviolet, visible, infrared):

This category encompasses spectrometers, spectrophotometers, and spectrographs that utilize optical radiations across the ultraviolet, visible, and infrared spectrums. These instruments are designed for the analysis of physical or chemical properties by measuring the interaction of light with a sample. Examples include instruments used for quantitative and qualitative analysis of chemical substances, identifying molecular structures, and monitoring chemical reactions.

Distinguishing this category from its siblings, 9027.10 covers apparatus specifically for gas or smoke analysis, while 9027.20 pertains to chromatographs and electrophoresis instruments, which separate and analyze components of a mixture. This HTS code, 9027.30, is specifically for instruments that rely on optical radiation for their analytical function, differentiating them from other analytical instruments covered elsewhere.

The subcategories within 9027.30 further refine the classification based on specific characteristics: 9027.30.40 applies to electrical variants of these optical radiation instruments, typically those with integrated electronic components for operation and data processing. The residual category, 9027.30.80, covers all other spectrometers, spectrophotometers, and spectrographs using optical radiations that do not fall under the electrical classification.