SGS Test Report Sunisok

Transmittance or Blocking of Erythemally Weighted Ultraviolet Radiation through Fabrics

AATCC 183-2010(2014)e2

Test conditions

  1. Air temperature: 21+1°C
  2. Relative humidity: 65+2% R.H.
  3. Orientation of test specimen: Specimens were clamped on sample holder. Fabric face side is facing the incident UV
  4. Test was conducted in wavelength range : 280 - 400 nm
  5. Instrument : UV-Vis Spectrophotometer
  6. No. of Scans : 6

Test results

 
 Dry Evaluation
 Wet Evaluation
Specified Requirement
Percent Transmittance, T (UV-A) :
0.14
0.05
 
 
 
 
 
/
Percent Transmittance, T (UV-B) :
0.08
0.05
The Percent Blocking, UV-A :
99.86
99.95
The Percent Blocking, UV-B :
99.92
99.95
Mean Ultraviolet Protection Factor (UPF) :
1107.78
1979.4
Standard Deviation :
391.86
10.79
Standard Error :
645.02
17.76
Rated UPF
50+
50+
Protection Category :
Excellent
Excellent
UPF Label Recommendation
50+
  • Refer to ASTM D6603, the UV protection category is determined by the UPF values,

UPF 40 or greater

Excellent UV Protection

UPF in between 25 to 39

Very Good UV Protection

UPF in between 15 to 24

Good UV Protection

UPF less than 15

Unclassification

  • Ultraviolet Protection Factor (UPF) is the ratio of the average effective ultraviolet radiation (UV-R) irradiance transmitted and calculated through air to the average effective UV-R irradiance transmitted and calculated through
  • The limits of the spectral range of ultraviolet radiation are not well defined and may vary according to the user. Committee E-2.12 of the International Commission on Illumination (CIE) distinguishes in the spectral range between 400 and 100 nm :

UV-A :   315 - 400 nm

UV-B :   280 - 315 nm

UV-R : 280 - 400 nm

  • This method can also be used to determine the UPF of the fabrics in a stretched state. However, the techniques for stretching the specimens are not part of this method and are addressed in a separate test procedure. It must be noted that stretching the specimens could change the UPF properties.
  • The listed protection category is for reference only, the market claims for labeling UV-Protection product shall follow "Standard Guide For Labeling UV-Protection Textiles" as stated in ASTM D6603

 

Quantitative Fiber Analysis

AATCC 20A-2018/AATCC 20-2018 Based on moisture regained weight as per ASTM D1909-13

 

Results

FTC Requirement per proposed

Rayon

93.6%

(95±3%) Bamboo

Spandex

6.4%

(5±3%)

 

Sample Picture

sunisok.com

Selected tests as requested by applicant against specified requirement / test request form / quotation

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