EN 985-2001 pdf download.Textile floor coverings – Castor chair test.
6.2.3 Test C
Cut two semicircies from the sample
If testing only one textile floor covering a third specimen is required to fill the gap left by removal of the 10 000 cycle specimen (see 8.8.1).
7 Atmosphere for conditioning and testing
Condition and test the specimens in the standard atmosphere for testing textiles as defined in EN 20139, i.e. relative humidity (65±2) % and temperature (20±2) °C, for at least 24 hours.
8 Procedure
8.1 MountIng of the specimens
Mount two semicircular specimens or four quadrant specimens on the specimen support (5.7) using double sided adhesive tape or adhesive net applying the tape or net over the whole area of the specimen support plate. Ensure that there are no gaps between the specimens and top tape to prevent movement or delamination.
If testing over an underlay or testing loose lay tiles, use the clamping ring (5.8) to hold the specimens in place. Prior to testing clean the specimens with the upright vacuum cleaner (5.9), making four forward and backward passes and ensuring that all the area is covered.
8.2 VerIfication of the castors
Check that the castors rotate and swivel freely and are free of fibre remaining from previous tests.
8.3 Preparing the apparatus
8.3.1 Place the specimen support (on which the test specimens are mounted) onto the testing platform, ensuring that the holes in the specimen support engage the studs on the testing platform.
8.3.2 Lower the castors slowly into contact with the test specimens.
8.3.3 Place the suction device (5.6) as close as possible to the specimens but without touching. Start the Suction device so that it remains running throughout the test except for Test C.
8.4 Test A- stage 1
8.4.1 Set the number of cycles on the counter (5.5) to 5000 and start the machine.
8.4.2 When the machine stops after 5000 cycles of the testing platform inspect the specimen(s) for any delamination and then remove the specimens) intended for assessment after 5000 cycles.
NOTE Inspection prior to removing from the plate is important, as the material can become damaged just by the action of removing the specimen.
8.4.3 Brush vacuum the 5 000 cycle specimen(s) immediately on removal from the machine.
Brush four times both with and against pile lean using a slow movement and ending in the direction of pile lean.
8.4.4 Condition the 5 000 cycle specimen(s) in the standard atmosphere for testing textiles (clause 7) for at least
24 hours before assessing, laying the specimen(s) flat with use surface uppermost, or hanging them freely.
8.5 Test A – Stage 2
8.5.1 Mount unworn specimens of the floor covering on the specimen support in place of the removed 5000 cycle specimens.
8.5.2 Repeat 8,3.1 to 8.3.3, set the number of cycles on the counter (5.5) to 20 000 and start the machine.
8.5.3 When the machine stops, inspect the specimen(s) for any delamination, remove the specimens, discard the 20 000 cycle specimen and proceed with the 25000 cycle specimen(s).
8.5.4 Brush vacuum the 25000 cycle specimen(s) immediately on removal from the machine
Brush four times both with and against pile lean using a slow movement and ending in the direction of pile lean.
8.5.5 Condition the 25000 cycle specimen(s) in the standard atmosphere for testing textiles (clause 7) for at least 24 hours before assessing, laying the specimen(s) flat with use surface uppermost, or hanging them freely.
8.6 Test B
8.6.1 Set the number of cycles on the counter (5.5) to 750 and start the machine.
8.6.2 When the machine stops inspect the specimen(s) for any delamination and remove the specimen(s).
8.6.3 Condition the specimen(s) in the standard atmosphere for testing textiles (clause 7) for at least 24 hours before assessing, laying the specimen(s) flat with use surface uppermost, or hanging them freely.
8.7 Test C – Stage 1
8.7.1 Set the number of cycles on the counter (55) to 10 000 and start the machine the suction device being off
8.7.2 When the machine stops after 10000 cycles of the testing platform, inspect the specimen(s) for any delamination and remove the specimen(s) intended for assessment.EN 985-2001 pdf download.