GB/T 25965-2010 in English

VALID

Test methods of normal emittance of materials and hemispherical emittance of all-glass evacuated collector tubes

Issued on:2011-01-10
Implemented on:2011-05-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $180.00
$175.00

Standard No:	GB/T 25965-2010
Document status:	VALID
Title in English:	Test methods of normal emittance of materials and hemispherical emittance of all-glass evacuated collector tubes
Title in Chinese:	材料法向发射比与全玻璃真空太阳集热管半球发射比试验方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2011-01-10
Implemented on:	2011-05-01
ICS Classification:	27.160-Solar energy engineering
Chinese Classification:	F01-Technical management
Professional Classification:	GB-National Standard
Related Keywords:	test methods normal emission ratio hemispherical emission ratio test conditions test procedures
Related Topics:	law launch Scattering Ratio and Reflectance Ratio vacuum field emission space discovery than too dry field emission vacuum field emission thermal emission specific heat material shot ratio excitation and emission Collector tube Field Emission and Thermal Emission field emission material thermal field emission launch material thermal emission and field emission Directional Hemispheric Reflection thermal field emission Directional Hemispheric Emissivity specific evaporation test launch branch ratio glass vacuum hemispherical directional reflex GBT25965 GB/T 25965-2010 All glass vacuum solar collector tube Water glass sand proportioning method Methods and uses of test tube agglutination test What are the methods and uses of test tube agglutination test?

《GB/T 25965-2010材料法向发射比与全玻璃真空太阳集热管半球发射比试验方法》由TC402（全国太阳能标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Scope

This standard specifies the equipment, devices and requirements, sample size and requirements, test conditions, test procedures and test methods for measuring the normal emission ratio of the spectrally selective absorbing coating and the hemispherical emission ratio of the all-glass vacuum solar collector tube absorbing coating. This standard is applicable to the screening of process specifications in the development and production of materials and spectrally selective absorbing coatings and the measurement of the normal emission ratio of samples and the hemispherical emission ratio of all-glass vacuum solar collector tubes.

More samples: GB 50021-2001(2009) YD/T 3934-2021 GB 18306-2015

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