The method consists in separating of the impurities, by sieving and sorting, into three categories as follows: -fines, -non-oleaginous impurities, - oleaginous impurities, followed by determing of the mass of total impurities or, on request, of the mass of each category of impurity.
Revises
ISO 658:1980
WITHDRAWN
ISO 658:1988
95.99
Withdrawal of Standard
May 2, 2002
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