accurate to 0.1mg / L. (mg / L); f - standard curve slope in milligrams per liter (mg / L); As - the liquid to be measured Absorbance; Ab - absorbance of distilled water. 6.340L dryer method for the determination of formaldehyde emission of decorative wood-based panel 6.3.1.Principle see GB / T17657-1999 4.12.1.6.3.2 reagent according to GB / T17657--1999 in the provisions of 4.12.3. 6.3.3 Solution preparation According to the provisions of 4.12.5 in GB / T17657-1999 6.3.4 Instrument 6.3.4.1 Test container, material: Acrylic resin,
volume 40L. 6.3.4.2 Absorbent container, material: polypropylene or polyethylene, diameter 57mm, depth 50mm ~ 60mm. 6.3.4.3 In addition to metal stents, dryers, crystal containers, the other according to GB / T17657-1999 in the provisions of 4.12.2. 6.3.5 samples on both sides.
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