ISO-3415-1986.pdf
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1、International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATION*MEYHAPOfiHAR OPI-AHM3ALWlfl n0 CTAHAPTbl3ALWlORGANISATlON INTERNATIONALE DE NORMALISATION Textile floor coverings - Determination of thickness loss after brief, moderate static loading Revetements de sol textiles - D Conduct the t
2、est in the Standard atmosphere for testing textiles. Make all determinations of thickness to the nearest 0,l mm. b) the thickness loss after recovery as the differentes be- tween the initial thickness and the three values of thickness after recovery for 15, 30 and 60 min. In Order to ensure that the
3、 specimen is held flat, place a guard ring centrally on the specimen so that its centre coincides with that of the presser foot. Keep the guard ring in the same posi- tion throughout the entire test procedure. The ability of recovery of a textile floor covering tan be indicated by a diagram showing
4、the remaining compression after the removal of pressure at the various times of recovery. 8.2 Measurement of initial thickness 9.3 Example Determine the initial thickness in the centre of the specimen under the Standard pressure before the application of the specified pressure using the method speci
5、fied in ISO 1765. Initial thickness under Standard pressure the 10,3 mm 83 . Measurement of thickness under pressure Thickness under the pressure of 220 kPa 5,6 mm Immediately after the determination of the initial thickness (see 8.2) apply a pressure of 220 kPa to the specimen without shock. Ensure
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- ISO 3415 1986
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