ASTM G130 is the standard test method for calibrating narrow- and broad-band ultraviolet radiometers using a spectroradiometer. It provides a practical framework for checking and adjusting UV measurement instruments so their readings are traceable and dependable. This matters whenever ultraviolet output must be measured with confidence, since calibration affects data quality, instrument comparability, and the reliability of test results used in quality control or compliance activities.

ASTM G130 standard overview

The ASTM G130 standard focuses on calibration practices for ultraviolet radiometers that measure either narrow-band or broad-band UV radiation. By using a spectroradiometer as the calibration reference, the method helps align instrument response with known spectral measurements. This makes the standard especially useful for organizations that need consistent UV readings across different instruments or test setups. As an ASTM standard, it supports repeatable measurement practices and helps users document calibration in a technically sound way.

Where is ASTM G130 used?

ASTM G130 is commonly used in laboratory and field settings where ultraviolet radiometers are part of routine measurement workflows. It is relevant to users who evaluate UV exposure, monitor UV sources, or verify instrument performance before testing. Because the title centers on calibration, the standard is a practical fit for organizations that manage measurement equipment and need reliable UV data for testing, maintenance, or product evaluation. It is most useful where instrument accuracy directly affects reported results.

Practical importance of ASTM G130

In practice, ASTM G130 helps reduce uncertainty in ultraviolet measurements by providing a consistent calibration method. That is important for procurement, quality control, and compliance programs that depend on trustworthy radiometer performance. Using a recognized calibration approach can improve consistency between instruments, support internal verification records, and lower the risk of misleading test data. For teams responsible for UV measurement equipment, the standard offers a clear technical basis for calibration decisions and documentation.

• Calibration of UV radiometers
• Narrow-band and broad-band instrument checks
• Spectroradiometer-based reference method
• Measurement consistency and traceability
• Support for quality control workflows