FTTS-FA-008 Ultraviolet Protective Textiles
1.Scope
This standard specifies the ultraviolet coefficient performance evaluation, and the basic
requirements of the standards and test methods evaluation for protective clothing (does not
apply to non-from UV Sunlight) for anti-solar ultraviolet textiles, clothing and other apparel
items (such as hats).
2. Definitions:
2.1.Ultraviolet Protection Factor, UPF: is defined as the ratio between "detected average
effective erythemal ultraviolet radiation flow (W/m2) with no skin protection from sample"
and "detected average effective erythemal ultraviolet radiation flow (W/m2) with skin
protection from sample".
2.2.Solar UV-A: solar ultraviolet radiation with wavelength between 315 and 400 nm.
2.3.Solar UV-B: solar ultraviolet radiation with wavelength between 280 and 315 nm.
2.4.Effective UVR transmission: ratio between "detected average effective erythemal ultraviolet
radiation flow (W/m2) with skin protection from sample" and "detected average effective
erythemal ultraviolet radiation flow (W/m2) with no skin protection from sample", expressed
in percentages.
3.Grades:
Washing resistance test conducted according to provisions 5.2 in CNS 15001 “Performance
evaluation of UV fabric”:
|
UPF
|
Erythemal ultraviolet
penetration rate (%)
|
Grade
|
|
40-50、50+
|
≦2.5
|
A
|
|
25-39
|
2.5~4.1
|
B
|
|
15-24
|
6.7~4.2
|
C
|
|
