有做过EN717-3甲醛测试的吗 甲醛计算公式Fv = (As - Ab) x f x 50 x 10 (100 + H)/m As is the absorbance of the analysed solution from the containers; Ab is the absorbance of an analysis with distilled water; f is the slope of the calibration curve, in milligrams per millilitre; H is the moisture content of the test pieces, in percent; m is the mass of the test pieces, in grams.