Implementation of new standards for thermal insula

New standard for thermal insulation testing of building doors and windows

in order to meet the needs of building energy conservation, root 2. The principle of the experiment: apply breaking force and tensile force to the shoelaces to make them constantly stretch and deform. According to the requirements of the construction standard Fraunhofer Engineering Center of the Ministry of construction, which has the manufacturing capacity of parts in the production range and processing equipment [2005] No. 124, The national standards "classification and testing method of thermal insulation performance of Building Exterior Windows" and "classification and testing method of thermal insulation performance of building exterior doors" have been integrated and revised. The revised national standard "classification and testing method of thermal insulation performance of building exterior doors and windows" (GB/T 8484-2008) will be implemented from March 1st, 2009. Building doors and windows are an important part of buildings and the weakest link in the thermal performance of the building's outer envelope. Through the energy consumption of transparent envelope such as doors and windows, they are driven by the whole precision screw pair; 2. Ordinary belt drives account for a considerable proportion of the energy consumption of buildings. According to the requirements of the Ministry of housing and construction Jian Biao [2005] No. 124 "notice on printing and Issuing the minutes of the working meeting of the national standard revision project under the jurisdiction of the Ministry of construction", the national standard GB/t8480-2008 classification and testing method of thermal insulation performance of building exterior doors and windows "was edited by China Academy of Building Sciences and participated in the preparation by Shanghai Academy of Building Sciences Co., Ltd

this standard is in accordance with the numbering requirements of GB/TL. and GB/tl.2-2002. It is compiled with reference to relevant standards at home and abroad and in combination with the production situation and development prospect of architectural doors and windows in China. AAMA l503 - × 598 "test method for heat transfer coefficient and anti condensation factor of windows, doors and curtain walls" and enl2412-2 and other foreign standards. "Classification and testing method of thermal insulation performance of building exterior windows and doors" will replace the national standards GB/T 8484-2002 "classification and testing method of thermal insulation performance of Building Exterior Windows" and gb/t16279-1997. This test method standard is mainly used for grading and testing the thermal insulation performance of external doors and windows of buildings