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  At ADETEX we rigorously submit all our latex products tests for quality control processes. The following section shows the tests our products have undergone.

  RESISTANCE TO PENETRATION / UNE EN ISO 2439: 2001

  Description: Samples of 380 x 380 x 100 mm (each sample containing ten 1 cm thick foam sheets) and 380 x 380 x 50 mm (each sample containing five 1 cm thick foam sheets) were compressed in a Universal Testing machine at a rate of 100 mm/min, using one lower and one upper surface. The lower surface was a flat 50 mm-wide plaque, perforated with 5 mm-diameter holes at 20 mm separation. The upper surface was a 204 mm-diameter circle. Registrations were taken of the force required to compress the foam 25 %, 40 % and 65 % with respect to thickness.


  STATIC FATIGUE AT CONSTANT DEFORMATION / UNE 53 170 : 2002

  Description: Samples of 380 x 380 x 100 mm (each sample containing ten 1cm-thick foam sheets) were compressed using two 500mm-wide plaques up to 75 % deformation and were kept compressed for 22 hours at 23ºC and 50 % relative humidity. After this, the foam was left to repose for 30 min and then loss of height and resistance to penetration were measured as above.


  COMPRESSION SET / UNE EN ISO 1856 : 2001

  Description: Samples of 50 x 50 x 25 mm (each sample containing one 1.5 mm-thick and one 1.0 mm-thick sheet) were measured for thickness and then compressed using two 100 mm-wide plaques to 50 % deformation and kept compressed for 72 hours at 23ºC. After this, the foam was left to repose for 30 min and then loss of thickness was measured.


  FATIGUE BY CONSTANT-LOAD POUNDING / UNE EN ISO 3385: 1996

  Description: Samples of 380 x 380 x 50 mm (each sample containing 5 1 cm-thick foam sheets) were subjected to 80.000 continuous load cycles of dynamic fatigue with a constant force of 750 N. Loss of height and resistance to penetration were then calculated. After this, the foam was left to repose for 30 min and then loss of height and resistance to penetration were measured as above.



  TENSILE STRENGHT / UNE EN ISO 1798 : 2001

  Description: Traction was exerted on samples die-stamped in a given shape pursuant to the standard at a rate of 50 mm/min, the break point was registered and the break pressure was calculated as force per unit of surface area. Sample elongation was also registered at break, expressed as a percentage of the initial length.


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