GB/T 36261-2018 in English
VALIDOn-site test technical condition and calculation for optical and thermal parameters of energy saving glass for building
- Issued on:2018-06-07
- Implemented on:2019-01-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$243.00
《GB/T 36261-2018建筑用节能玻璃光学及热工参数现场测量技术条件与计算方法》由TC255（全国建筑用玻璃标准化技术委员会）归口，主管部门为中国建筑材料联合会。
Introduction
Interpretation of GB/T 36261—2018 National Standard of the People's Republic of China
Overview of the Standard
This standard specifies the technical conditions and calculation methods for on-site testing of optical and thermal parameters of energy-saving glass for buildings, and is applicable to energy-saving glass for buildings that have been installed or are to be installed.
Explanation of key terms
| Terms | Definition |
|---|---|
| Optical and thermal parameters | Including visible light transmittance, solar radiation reflectance, heat transfer coefficient, etc. |
| Basic parameters | Measured parameters used for glass optical and thermal calculations, such as glass thickness and gas spacer concentration. |
Test classification and applicable scope
Divided into two categories according to test capabilities:
- First category test: can directly measure all optical and thermal parameters.
- Second category test: can only measure optical parameters, and thermal parameters calculations need to be performed through small samples.
Implementation suggestions
1. In practical applications, it is recommended to use a spectrophotometer for spectral transmittance and reflectance measurements.
2. For the second type of test, ensure that the small sample is consistent with the characteristics of the finished glass product to ensure the reliability of the alternative test.
Comparison of standard frameworks
| Glass type | Applicability of light and thermal parameters | Test classification | |
|---|---|---|---|
| Single-pane glass | √ Applicable to all light and thermal parameter measurements | First category test | |
| Coated insulating glass | Coated on two or more sides | Second category test | |
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