ASTM G130-2020 Release information
Standard number ASTM G130-2020

Standard test method for calibration of narrow band and wide band ultraviolet radiometers using spectroscopic radiometers

Standard Test Method for Calibration of Narrow- and Broad-Band Ultraviolet Radiometers Using a Spectroradiometer

Release Date 2020

Implementation date

Date of repeal None

International Standard Classification Number 17.180.20 (Colours and measurement of light)

Published by US-ASTM

ASTM G130-2020 Standard Test Method for Calibration of Narrow Band and Wide Band Ultraviolet Radiometers Using Spectroscopic Radiometers

ASTM G130-2020 Scope of application
1.1 This test method covers the calibration of ultraviolet light-measuring radiometers possessing either narrow- or broad-band spectral response distributions using either a scanning or a linear-diode-array spectroradiometer as the primary reference instrument. For transfer of calibration from radiometers calibrated by this test method to other instruments, Test Method E824 should be used.

NOTE 1:Special precautions must be taken when a diode-array spectroradiometer is employed in the calibration of filter radiometers having spectral response distributions below 320-nm wavelength. Such precautions are described in detail in subsequent sections of this test method.

1.2 This test method is limited to calibrations of radiometers against light sources that the radiometers will be used. 1.2 This test method is limited to calibrations of radiometers against light sources that the radiometers will be used to measure during field use.

NOTE 2:For example, an ultraviolet radiometer calibrated against natural sunlight cannot be employed to measure the total ultraviolet irradiance of a fluorescent ultraviolet lamp.

1.3 Calibrations performed using this test method may be against natural sunlight, Xenon-arc burners, metal halide burners, tungsten and tungsten-halogen lamps, fluorescent lamps, etc.

1.4 Radiometers that may be calibrated by this test method include narrow-, broad-, and wide-band ultraviolet radiometers, and narrow-, broad, and wide-band visible-region-only radiometers, or radiometers having wavelength response distributions that fall into both the ultraviolet and visible regions.

NOTE 3:For purposes of this test method, narrow-band radiometers are those with Δλ ≤ 20 nm, broad-band radiometers are those with 20 nm ≤Δλ ≤ 70 nm, and wide-band radiometers are those with Δλ ≥ 70 nm.

ASTM G130-2020 Standard Test Method for Calibration of Narrow Band and Wide Band Ultraviolet Radiometers Using Spectroscopic Radiometers

NOTE 4:For purposes of this test method, the ultraviolet region is defined as the region from 285 to 400-nm wavelength, and the visible region is defined as the region from 400 to 750-nm wavelength. The ultraviolet region is further defined as being either UV-A with radiation of wavelengths from 315 to 400 nm, or UV-B with radiation from 285 to 315-nm wavelength.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

1.1 This test method includes calibration of ultraviolet measurement radiometers with narrow band or wide band spectral response distributions using a scanning or linear diode array spectroradiometer as the primary reference instrument. In order to transfer the calibration of a radiometer calibrated by this test method to another instrument, test method E824 should be used.

ASTM G130-2020 Standard Test Method for Calibration of Narrow Band and Wide Band Ultraviolet Radiometers Using Spectroscopic Radiometers

Note 1: Special precautions are required when diode array spectroradiometers are used to calibrate filtered radiometers with spectral response distributions below 320 nm wavelengths. Such preventive measures are described in detail in subsequent sections of this test method.

1.2 This test method is limited to the calibration of the radiometer for the light source to be used for measurement during field use.

Note 2: For example, a UV radiometer calibrated to natural sunlight cannot be used to measure the total UV irradiance of a fluorescent UV lamp.

1.3 Calibration using this test method can be performed for natural sunlight, xenon arc burners, metal halide burners, tungsten and halogen lamps, fluorescent lamps, etc.

1.4 Radiometers that can be calibrated by this test method include narrowband, wideband and wideband ultraviolet radiometers, as well as radiometers limited to the narrow band, wideband and wideband visible region, or radiometers whose wavelength response distribution is in both the ultraviolet and visible region.

Note 3: For the purposes of this test method, the narrow-band radiometer is Δλ type ≤ 20nm, the wide-band radiometer is 20nm radiometer ≤Δλ ≤ 70 nm, and the wide-band radiometer is Δλ≥ 70 nm.

Note 4: In this test method, the ultraviolet region is defined as the region with a wavelength of 285 to 400 nm, and the visible region is defined as the region with a wavelength of 400 to 750 nm. The ultraviolet region is further defined as UV-A with wavelengths of 315 to 400 nm or UV-B with wavelengths of 285 to 315 nm.

1.5 This standard is not intended to address all safety concerns (if any) associated with its use. Users of this standard are responsible for establishing appropriate safety, health and environmental practices prior to use and for determining the applicability of regulatory restrictions.

1.6 This international standard is based on internationally recognized standardization principles established in the Decision on Principles for the Development of International Standards, Guidelines and Recommendations issued by the WTO Technical Barriers to Trade (TBT) Committee.

ASTM G130-2020 Standard Test Method for Calibration of Narrow Band and Wide Band Ultraviolet Radiometers Using Spectroscopic Radiometers

A reminder: Newer versions of this ASTM G130-2020 may exist. We recommend seeking confirmation from the publisher of ASTM G130-2020.