A260

A260 is an alphanumeric designation used in several unrelated fields to label different items. Its meaning is context dependent, and the same code can refer to a road, a scientific measurement, or a product model.

In transportation, A260 denotes a road designation within national or regional road networks. A-roads are typically important routes that connect settlements, and the numeric suffix 260 is part of the local numbering scheme. The exact route and length vary by country.

In science and laboratory work, A260 has a specific meaning in spectrophotometry. It represents the absorbance of a sample at a wavelength of 260 nanometers. This value is commonly used to estimate nucleic acid concentration, with the A260 reading providing a proxy for the amount of DNA or RNA in solution. The ratio of A260 to A280 is often used to assess sample purity, with higher ratios indicating nucleic acid enrichment and possible protein contamination.

As a product or model code, A260 appears in various devices and components, including laboratory instruments, peripherals, or consumer electronics. In such cases, the A260 label helps identify a particular model, revision, or part number within a broader product line.

Because A260 has multiple legitimate meanings, disambiguation is typically required. If you encounter A260, determine the relevant domain (transportation, science, or product labeling) to identify the correct interpretation.