Since the current range hood still uses the old version of the national standard implemented in 1999, after more than ten years of development, the range hood has been extended from the original shallow cover simple hood to the current European, near range hood and many other forms, the application of many new materials. And the design seems to be a bit out of date for the old national standard, so the new national standard will be approved by the National Standardization Administration Committee. The National Hardware Standardization Technical Committee and the Daily Hardware Standardization Center have started the revision of the national standard for range hoods. Fang Tai, Boss, Shuaikang, Vantage, Sakura, Deyi, Supor, Wanxi and many other kitchen appliances have participated in the drafting of the revision of the new national standard.
It is understood that the revision of the new national standard takes into account the production capacity of the vast number of hood manufacturers. Basically, it was basically revised in the original 1999 version, mainly in terms of safety, environmental protection, certification and testing. For example, there is no clear numerical standard for the separation of soot in the national standard of the old hood, and the new version of the national standard of the hood clearly stipulates that the separation degree of the soot should reach more than 85%. The micro-environmental pollution level of the range hood appliance has been newly increased to 3, unless the insulation of the appliance is closed or placed in a place that is not easily contaminated. In terms of safety, the new version of the national standard of the range hood emphasizes the "heat resistance" of the material of the hood: the fan and the lamp holder need to measure the temperature rise; the ball pressure test temperature of the exposed parts at the bottom of the range hood is at least 105 ° C, the external set The smoke device has to withstand a burning test at 550 °C.
For the impact of the new national standard of this hood, there are kitchen manufacturers that have little impact and slightly increased production costs. Currently, they are actively preparing for the implementation of January 1 next year, mainly focusing on 3C certification and Testing work. Wang Jun, who participated in the drafting of the new national standard of the range hood, said that because the new national standard has data regulations on the degree of separation of soot and gasoline, it needs to be tested, and the professional machine for testing needs two sets, and the cost is about 200,000 to 300,000. At present, only Fangtai and Vantage are owned by the company, and the other hood companies can go to relevant institutions for testing and certification. Mao Jiejun, technical engineer of Shuaikang hood, said that the implementation of this new national standard will basically affect all hood manufacturers, because the original flame-retardant plastic exhaust pipe will be changed to be more heat-resistant. Flame-retardant performance, safer aluminum-platinum tube, it is understood that the current aluminum-plated tube is generally equipped with some high-end range hoods such as near range hoods, and some of the brands of kitchen power plants are also equipped, but in the future The implementation of the new national standard aluminum platinum tube will be more extensive. In the production of the hood process, it may be necessary to deploy personnel, which may require an increase in manpower, resulting in a certain increase in production costs.
Due to the close proximity to the cooker, the near range hood can quickly absorb the fumes, and the sleek shape is deeply loved by consumers. After years of market cultivation, and the first-line brand Fangtai, Liu Qian endorsed a near-end range hood. The addition of the big names of the bosses and Shuaikang has made this year's near range hood more powerful. According to incomplete statistics, the near range hood has formed a market size and demand of nearly one million.
The new national standard GB4706.28-2008 of the range hood is defined as “electric appliances installed above the stove for collecting polluted airâ€. For the current hood “big hit†– side suction range hood ( Also known as a near range hood) is also given as a definition of a range hood. The near range hood can also be said to be a range hood, but the installation height of the hood in the new national standard is still 65 centimeters of the original national standard.
According to the new version of the hood national standard instructions, the instructions should be kept: “The minimum distance between the bearing surface of the cooking appliance on the stove and the lowest part of the range hood. If the range hood is installed above the gas stove, the distance should be at least 65 cm. For example, the gas stove installation instructions If a larger installation distance is specified, this should be considered." In other words, the new version has no change in the installation height of the hood. However, it is well known that the range hood capacity of a near range hood has a great relationship with its installation position. The farther away from the stove, the lower the efficiency of the range hood, so many companies have a height of only 10 to 35 cm when actually installed in the user's home. At the same time, the ills of the range hood were exposed.
In this regard, there are kitchen appliances manufacturers that have already joined several other major kitchen appliances brands, and the issue of the installation conditions of the nearest range hood is proposed to the relevant state departments, and is currently awaiting approval.
Zhang Yachen of the China Household Electrical Appliances Research Institute said that under any circumstances, the idea and behavior of trying to lower the standard requirements because they cannot meet the standard requirements are unacceptable. "Side suction" is not suitable for a mounting height of 65 cm, then there must be strong evidence that it is safe to install the appliance at a lower height. Therefore, to propose differences and integrate them into national standards, evidence is needed from the analysis and verification tests of existing “side suction†structures, components, materials, etc.
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