Information
on the resistance of Alnet's UV Ultrablock Shade Cloth: Materials
and Protection against UVRThe
table below relates Ultraviolet Protection Factor (UPF) against the amount of
effective UVR transmitted and blocked out, and will be useful as a reference when
discussing protection against UVR.
|
% UVR Transmitted
|
% UVR Blocked out
|
UPF
|
Protection Category
| |
10 |
90.0 |
10 |
Moderate |
| 5 |
95.0 |
20 |
High |
| 3.3 |
96.7 |
30 |
Very
High | | 2.5 |
97.5 |
40 |
Extremely
High | | 2.0 |
98.0 |
50+ |
Maximum |
UV
Ultrablock and Ultraviolet Radiation Tests
have been conducted by the University of Stellenbosch, Institute of Polymer Science
in South Africa, to evaluate the Absorbance( Blockout ) and transmittance of Ultraviolet
light with Alnet UV Ultrablock Shadenet. The results of these tests are given
below.
|
| Shade
| 313nm
| | 340nm
| | UPF
| |
| %
| Abs(%)
| Trans(%)
| Abs(%)
| Trans(%)
| Factor
| | Terracotta
| 88
| 97.8
| 2.2
| 97.8
| 2.2
| 45
| | Bottle
Green | 83
| 98.8
| 1.2
| 98.8
| 1.2
| +50
| | True
Blue | 86
| 98.1
| 1.9
| 98.0
| 2.0
| 50
| | Plain
Silver | 91
| 98.3
| 1.7
| 98.3
| 1.7
| +50
| | Forest
Green | 90
| 98.2
| 1.8
| 98.2
| 1.8
| +50
| | Midnight
Blue | 86
| 98.8
| 1.2
| 98.8
| 1.2
| +50
| | Navy
Blue / White | 73
| 98.4
| 1.6
| 98.4
| 1.6
| +50
| | Green
/ White | 66
| 98.9
| 1.1 | 98.9
| 1.1
| +50
| | Beige
/ White | 57
| 98.7
| 1.3
| 98.7
| 1.3
| +50
| LEGEND:
Abs = Absorbance (Blockout)
Trans =
Transmission-% Passing through Alnet's
UV Ultrablock is a superior product that offers you great value for money. Do
not settle for anything less! | 
