ISO 22632:2019 pdf free

ISO 22632:2019 pdf free.Adhesives一Test methods for adhesives for floor and wall coverings一Shear test
Fibre cement substrate, one uncoated fibre cement panel, fully compressed and autoclaved, for each test piece. Five fibre cement panels for each conditioning sequence with a length of approximately 60 mm and a thickness of approximately 8,0 mm. The width is (50±0,5) mm.
NOTE Length and thickness are not critical.
Depending on the source of the fibre cement panels, the surfaces sometimes differ with respect to gloss,absorbency and strength. In this case, it is important to do some preliminary assessment (i.e. peel tests) of the panels to identify the preferred side for testing. The preferred side is referred to as the upper side of the substrate in this document.
Place the test panels (5.7.1) in a heating chamber (5.3) for 6 h at (80±2)°C. Ensure that the test panels are spaced in such a way as to enable a free passage of air over them. At the end of this period, remove the test panels from the heating chamber and store for 48 h in a standard atmosphere of (23±2) °C and (50±5) % relative humidity prior to use.
Place masking tape across one end of the upper side of each substrate leaving a 20 mm length to be coated with adhesive.
Apply the adhesive under test across the full width of the substrate using a notched trowel (5.1), held at an angle of approximately 60°, steadily down the length of the substrate to provide a uniform adhesive application.Remove the masking tape when the adhesive has been applied.
When applying the adhesive, it is essential that the serrated blade is kept clean and free of adhesive build-up. Clean the blade regularly (no more than five substrates to be prepared without cleaning). In addition,regularly check the notch size and depth, especially where non-hardened steel blades are in use.
After the time recommended by the adhesive manufacturer (i.e. minimum open time in accordance with ISO 472), place the test covering (5.6) onto the coated panel (5.7) to provide an overlap of 20 mm such that the unbonded length protrudes from the edge of the panel coated with adhesive (see Figure 3).ISO 22632 pdf free download.