碎石測試標準ISO 20567-1  上海 涵潮試驗設(shè)備

used shall be agreed between the interested parties.
Weigh the grit after each test run (i.e. after each projection) and, if required, add grit to keep the total mass at
20
500 0 g. +
When the two test runs have been completed, place a strip of adhesive tape approximately 120 mm to
150 mm long over the test area of the test panel and press it firmly onto the surface. Bend one end of the tape
upwards and pull the strip off with a jerk (at an angle of 90° to the test panel) to remove chips of paint that
have not been completely separated from the panel.
ISO 20567-1:2005(E)
© ISO 2005 – All rights reserved 5
Check the length of time taken to project the grit with a stopwatch each time a new series of tests is started
and, if required, during an ongoing series of tests.
After a maximum of 100 test runs (see