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Journal of Textiles
Table of Contents
Journal of Textiles
/
2013
/
Article
/
Tab 1
/
Research Article
Ultraviolet Protection by Fabric Engineering
Table 1
UPF rating and protection grades.
Protection
grade
Rating
UPF
range
Transmission (%)
Good
No value
20–29
5.0–3.4
Very good
30
30–40
3.3–2.5
Excellent
40
>40
<2.5