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Polyethylene closed-cell foam board is a polymer joint waterproof material. According to the sampling standard of synthetic polymer waterproof membrane (sheet) {(GB 50207-2012) (GB 50208-2011) (GB 18173.1-2000) (GB 18173.2-2006/2012)}, the sample polyethylene closed-cell foam board is cut 300mm away from the outer edge and cut longitudinally (directly cut with a wallpaper knife). The required length and width of the test material are 1000mm×1000mm, that is, 2 pieces of foam board of 1 square meter are enough.
One piece is used for physical performance inspection, and the other is reserved (Note: the test items are required: tensile strength at break, elongation at break, impermeability, low-temperature bending; others: density, recovery rate)
Due to different testing institutions, the required samples are also different. For relevant tests, please call Kunming Quality Inspection Center for consultation
