9. Preparation of Test Specimen
9.1 Filter approximately 50 mL of the sample (see 8.1) at
laboratory ambient temperature, but in any case not at a
temperature less than 15°C, through dry filter paper (see 7.3).
10. Preparation of Apparatus
10.1 Prepare the manual apparatus or the automated apparatus for operation in accordance with the manufacturer’s
instructions for calibrating, checking, and operating the equipment. See Fig. 1 for manual apparatus.
10.2 Before each test, dismantle the filter unit (see 6.1.8.2)
and wash the pieces and the test jar (see 6.1.2), the pipet (see
6.1.8.1) and the thermometer (see 6.1.9 for manual apparatus
and 6.2 for platinum resistance used in automated equipment)
with heptane (see 7.1), then rinse with acetone (see 7.2) and
dry in a stream of filtered air. Check the cleanliness and
dryness of all elements, including the jacket (see 6.1.3).
Examine the wire mesh (see 6.1.8.2(c)) and the joints (see
6.1.8.2(a) and 6.1.8.2(b) for damage; if necessary renew them.
10.3 Check that the screw cap (see 6.1.8.2(b) is tight enough
to prevent leakage.
9. Preparation of Test Specimen
9.1 Filter approximately 50 mL of the sample (see 8.1) at
laboratory ambient temperature, but in any case not at a
temperature less than 15°C, through dry filter paper (see 7.3).
10. Preparation of Apparatus
10.1 Prepare the manual apparatus or the automated apparatus for operation in accordance with the manufacturer’s
instructions for calibrating, checking, and operating the equipment. See Fig. 1 for manual apparatus.
10.2 Before each test, dismantle the filter unit (see 6.1.8.2)
and wash the pieces and the test jar (see 6.1.2), the pipet (see
6.1.8.1) and the thermometer (see 6.1.9 for manual apparatus
and 6.2 for platinum resistance used in automated equipment)
with heptane (see 7.1), then rinse with acetone (see 7.2) and
dry in a stream of filtered air. Check the cleanliness and
dryness of all elements, including the jacket (see 6.1.3).
Examine the wire mesh (see 6.1.8.2(c)) and the joints (see
6.1.8.2(a) and 6.1.8.2(b) for damage; if necessary renew them.
10.3 Check that the screw cap (see 6.1.8.2(b) is tight enough
to prevent leakage.
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