GB/T 25968-2010Test methods of solar transmittance and solar absorptance of materials by spectrophotometry (English PDF)
分光光度计测量材料的太阳透射比和太阳吸收比试验方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
January 10, 2011
Implementation date
April 1, 2011
Scope
GB/T 25968-2010 is the English-translated version of 分光光度计测量材料的太阳透射比和太阳吸收比试验方法.
GB/T 25968-2010 is the Chinese standard "Test methods of solar transmittance and solar absorptance of materials by spectrophotometry".
Its scope clause reads: This standard specifies the cover glass sun all-glass vacuum tube solar collector transmittance and solar selective absorbing coating ratio of absorption measurements Instruments and test methods.
This standard applies to materials and components of solar energy applications. Its clauses include terms and definitions.
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Document preview — GB/T 25968-2010
National Standard of the People's Republic of China
- ICS
- 27.160
- Classification
- F 01
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 3.1 Monochromatic transmittance
- 3.2 Solar transmittance
- 3.3 Monochrome reflectance
- 3.4 Solar Reflectance
- 3.5 Solar absorption ratio
- 3.6 Air Quality 1.5 airmass1.5
1 Scope
This standard specifies the cover glass sun all-glass vacuum tube solar collector transmittance and solar selective absorbing coating ratio of absorption measurements
Instruments and test methods.
This standard applies to materials and components of solar energy applications.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 12936 solar thermal terms
GB/T 17049 all-glass vacuum tube solar collector
Glass surface collector thermal performance and pressure drop measurement. Part 1 ISO 9806-1 solar collector detection method
3 Terms and Definitions
And the following terms and definitions GB/T 12936 apply to this standard established.
3.1 Monochromatic transmittance
taulambda
At a single wavelength lambda, the ratio of power transmission and bin incident.
3.2 Solar transmittance
taus
Bin transmission power ratio and the incident solar radiation.
3.3 Monochrome reflectance
rholambda
At a single wavelength lambda, power ratio bin reflection of the incident light.
3.4 Solar Reflectance
rhos
Power ratio bin reflecting the incident solar radiation.
3.5 Solar absorption ratio
alphas
Bin incident solar radiation absorption and power ratio.
3.6 Air Quality 1.5 airmass1.5
AM1.5
Solar elevation angle was 41.8 ° when the number of air quality, the sun and the solar transmittance than the absorption ratio calculated according AM1.5.
GB 25327-2017 | GB 26920.2-2015 | GB 26920.1-2011 | GB/T 25969-2010 | GB/T 25965-2010 | GB/T 25959-2010 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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