Coating and polyurethane together to create a new situation in China's energy saving architecture
Coating and polyurethane together to create a new situation in China's energy saving architecture
National standardization management committee promulgated on December 31, 2012 approved mandatory national standard GB8624-2012 "building materials and products of combustion performance classification" (hereinafter referred to as "new gb"), implemented since October 1, 2013.
New gb is directly related to energy saving construction in our country can be to carry out national "energy saving is a national policy, fire safety is the big picture" of the decision, right or not to implement the new gb, is directly related to the survival and development of many related enterprises in our country, relationship to the healthy development of energy-saving building can be big problem in our country.
Started in the 1970 s, our country imported from western organic heat preservation material thin plastering exterior insulation system, changed the Chinese for thousands of years "QinZhuanHanWa" best structure of traditional architecture, opened up a new epoch energy saving construction in our country. But Achilles' heel is flammable organic polymer insulation materials, there is a serious fire hazard, especially as China's densely populated, tall dense, public building populated country, a large number of applications will bring more serious security hidden danger.
Since the 21st century, especially on February 9, 2009 China central television in Taipei flats fire, heavy "11.15" fire in Shanghai in 2010 and 2010 NianChuXi shenyang royal wanxin hotel fire extra-large fire to a large number of applications in China, such as launching knock flammable and combustible insulation materials, and the people across the country urged China's energy-saving building insulation materials to the people and the country has a safe quality assurance. National ministry of public security fire department according to China's national conditions and referring to the standard of Europe and the United States and other developed countries, continuously modify inspection of insulation materials combustion performance rating standards, ensure insulation fire prevention level systematic construction, governance from the material source of fire hazards.
In the 1990s, our government officially began to formulate the standards for the performance level of fire-retardant materials. 1997, our country follow Germany DIN4102:1997 "fire characteristics of building materials and components in the first part: requirements and testing of building materials classification standard, and carries on the revision, the released version in China GB8624-1997" building materials combustion performance grading methods, materials are divided into class A noncombustible materials (homogeneous materials), a-class non-combustible materials (composite materials), flame retardant B1 level, combustible B2 level, inflammable B3 level five levels. Later, the European Union was founded, in order to unify the Europe standard formulated the new eu EN13501 1:20-02 reaction to fire the building products and components test data classification, and unified architecture of reaction products in fire combustion performance grading procedures. After the implementation of the standard, eu member states, including the former west Germany's respective material grading standards, shall be repealed simultaneously. In this way, the standard of our country in accordance with west Germany no longer exists
