GB/T 18830-2009: Translated English of Chinese Standard (GBT 18830-2009, GB/T18830-2009, GBT18830-2009): Textiles - Evaluation for solar ultraviolet radiation protective properties
https://www.chinesestandard.net, 2017 M02 11 - 12 pages
This standard specifies the test method for the solar UV radiation protective properties of textiles, as well as the presentation, evaluation and marking of the level of protection.
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Preparation and conditioning of test specimen
Assessment and marking
Appendix A Normative Daylight spectral irradiance and erythema effect
Appendix arithmetic average Assessment beam CALCULATE its mean calculate the arithmetic Calculation and result colors or structures conditioning and testing conducted in accordance decimal places effect as calculated equation Erythema Evaluation for solar expressed as UPF fabric GB/T greater than 50 homogeneous material inner surface integrating sphere irradiate the test lowest UPF marked as UPF materials with different monochromatic monochromator nanometers nm nonhomogeneous materials Number of test optical radiation properties of textiles provisions radiation average effect radiation protective properties refers RETAIN two decimal sample is greater skin solar ultraviolet radiation solar UV radiation Spectral bandwidth Standard atmospheres Standard replaces Suitable UV T(UVA)AV Terms and definitions test specimen window total spectral transmittance transmittance of sample transmitted light ultraviolet radiation average ultraviolet radiation protective UPF value UPFAV UV light source UV protection factor UV protective products UV radiation protective UV transmission filter Wavelength interval wavelength of 280 Δλ