| http://www.w3.org/ns/prov#value | - (1) Test samples are left to stand for 24 hours in a thermostatic chamber maintained at 50???2??? C. (2) The test samples are placed in a weighing bottle in such a manner that the test samples do not come into contact with each other, and left to stand for 24 hours at 25??? C. at 90% RH with the weighing bottle lid (hereinafter simply referred to as the lid) open (dust on the surface of the test s
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