GB/T 11976-2015Graduation and test method of daylighting properties for external windows (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 11976-2002 "of windows lighting performance rating and testing methods" and GB/T 11976-2002 phase Ratio, the main technical changes are as follows:

--- Increased transmission index of windows color grading;

--- Adds color transmission index test equipment requirements and calculation methods;

--- Revised Appendix A, an increase in Appendix B. The standard proposed by the Ministry of Housing and Urban-Rural Development of the People's Republic of China. This standard by the national building curtain wall windows and doors Standardization Technical Committee (SAC/TC448) centralized. Standard drafting unit. China Academy of Building Research, Guangdong Academy of Building Research, Shanghai Institute of Building Sciences (Group) Co. Secretary, Henan Province Construction Quality Testing Center Station Ltd., Beijing Polytechnic University, Beijing High-Tech Building Materials Co., Ltd., Hebei Austrian-run Shunda Window Co., Ltd., Tylenol wind-Thailand (Suzhou) Co., Ltd. insulation materials, Bell Tianjin Construction Engineering Test Detection Technology Co., Secretary of Tianjin Branch EEB Environmental Monitoring Limited, Zhejiang New Century Engineering Testing Co., Ltd. Shenzhen Fu-curtain wall decoration works have Limited, Ningbo University of Technology, Jiangsu Ying Tai Ke Technology Co. EEB. The main drafters. Zhang Jianping, Luo Tao, Liu Huitao, Yang Shi Chao, Wang Shuxiao, Hao Zhihua, Xu Qin, Li Weimin, SUN Shi Bing, healthy, Weihe Dong, Mr Tsang, Wang Xinli, Jiang Chan, Gu Jianying, Cai Xianci, Wang Haibo, Zhang Jianjun, Shang Qing Huan. This standard replaces the standards previously issued as follows: This standard was first published on December 25, 1989, the first amendment April 28, 2002, this is the second revision. Of windows lighting performance classification and test methods

1 Scope

GB/T 11976-2015 is the Chinese national standard on graduation and test method of daylighting properties for external windows, in the field of construction materials and building. The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up - which in practice is how most foreign buyers meet it. It was issued on 15 May 2015 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of China, and has been in force since 1 December 2015. Classification: ICS 91.060.50, CCS P32. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This standard specifies the terms and definitions of windows lighting performance classification and test methods, performance rating and testing. This standard applies for windows and lighting board, a light dome lighting system and conduit transmittance reduction factor and color transmission index points And level detection.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 5702 light color evaluation method

GB/T 5823 building windows and doors term JJG245 light meter

ISO 9050 architectural glass visible light transmittance, solar direct transmittance, total solar energy transmittance, ultraviolet transmittance and glass Determination of the parameters (Glassin building - Determination oflighttransmittance, solar direct transmittance, totalsolarenergytransmittance, ultraviolettransmittanceandrelatedglazingfactors)

3 Terms and Definitions

GB/T 5823 defined by the following terms and definitions apply to this document.

3.1 Lighting performance daylightingproperties Of windows and other lighting systems light transmission capacity under diffuse light irradiation.