(d) A Filter Holder of Brass, in which the disc of wire mesh
gauze (see 6.1.8.2 (c)) is firmly clamped by a retaining ring
pressed into the filter holder. The diameter of the exposed part
of the gauze shall be 12 + 0.1 - 0.0 mm (see Fig. 8);
(e) A Brass Cylinder, threaded on the outside, that can be
screwed into the cavity of the body (see 6.1.8.2 (a)) to clamp
the filter holder (see 6.1.8.2 (d)) against the O-ring (6.1.8.2
(a)), The lower end shall have four slots to allow the specimen
to flow into the filter unit.
6.1.9 Thermometers, having ranges shown below and conforming to the requirements prescribed in Specification E 1 or
Specifications for IP Standard Thermometers.