| The solar reflectance/absorptance of opaque materials is an important parameter indicating the ability of a surface material in reflecting/absorbing solar heat. The solar reflectance index (SRI) is a measure of the roof's ability to reject solar heat.Tel: +86 25 8658 3475.
We test the following important properties of your roof materials:
Solar reflectance and absorptance
Emittance
Solar reflectance index (SRI) at three wind conditions (low, medium and high)
Test methods
Sample requirements
ASTM E903-12 Standard test method for solar absorptance, reflectance, and transmittance of materials using integrating spheres
ASTM C1371-04a(2010)e1 Standard test method for determination of emittance of materials near room temperature using portable emissometers or ASTM E408-13 Standard test methods for total normal emittance of surfaces using.
ASTM E1980-11 Standard practice for calculating solar reflectance index of horizontal and low-sloped opaque surfaces
Sample types: metal roof plates, window frame surfaces, roof membranes,coating
Sample quantities: one sample required for each test
Sample size options:
Recommended sample size: any size between 8 cm x 8 cm and 10 cm x 10 cm
Over-sized samples: we can test over-sized samples directly (up to 30 cm x 30 cm, additional surcharge applicable)
Sampling of samples: sampling needs to be done by the client; our test results are only related to the sample tested by us
ASTM 903反射率测试 http://www.fire-test.com/teststandard/usa/7146.html
ASTM E408发射率测试 http://www.fire-test.com/teststandard/usa/7147.html
ASTM E1980反射系数SRI测试 http://www.fire-test.com/teststandard/usa/7148.html
Web: www.fire-test.com
Tel: +86 25 86583475 +86 400 603 6575
Email: info@fire-test.com
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Testing to：
Fire standard
