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    after editing promoted formaldehyde to release quantity set limit to to ask namely, unified formaldehyde releases value of quantity set limit to to be 0.124mg/m3, Solid Outdoor Decking mark of set limit to is E1, abolished original E2 scale. Duan Xinfang expresses, this has conformed with international standard. Japan is carried out formally 2007 " build standard method " in, right indoor used the housing materials that releases harmful and

    chemical material to do discount interlocking outdoor wood flooring rigid limitation. In addition, new standard still cancels the formaldehyde of perforative and the desiccator law in original standard, extractive law to release set limit to to be worth, formaldehyde releases a quantity gather into one of traverse test method is " law of case of 1 stere climate " . "Law of case of 1 stere climate " detect duration composite decking in spain is 10 days at least, in constant temperature,

    constant air current action issues Shi Heheng, begin to determine from the 7th day. When the test the frequency exceeds 4 times, and determine 2 times finally result covering cracked concrete patio difference is less than 5% when, just serve as its average determine result. If determine twice,result difference is more than 5% when, determine everyday even. If steady state was not amounted to inside 28 days, use the 28th day determine value. "Rose on May

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