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Paragraph 7 EXPRESSION OF RESULTS

Original text. Later amendments are not shown.

Method of calculation and formula

7.1

The oil retention, from each determination (6.1) expressed as a percentage by mass of the sieved test portion, is given by the equation:

Oil retention=m2-m1m1×100

where:

  • m1 is the mass, in grams, of the sieved test portion (6.2);

  • m2 is the mass, in grams, of the test portion according to Section 6.4 or 6.5 respectively as the result of the last weighing.

  • Take as the result the arithmetic mean of the two individual determinations.