Paragraph 4 Apparatus
The following apparatus shall be used:—
(a)
a Lovibond “all purposes” comparator complete with stand for work in reflected light;
(b)
a Lovibond comparator disc A.P.T.W. or A.P.T.W.7;
(c)
two fused glass cells, 25 mm. depth;
(d)
a water bath or incubator capable of being maintained at 37.5degC. +/-0.5degC.;
(e)
a pipette to deliver 5.0 ml.;
(f)
a supply of 1.0 ml. straight-sided pipettes of an accuracy equal to N.P.L. Grade B;
(g)
a 1,000 ml. graduated flask;
(h)
a 100 ml. measuring cylinder or 100 ml. graduated flask;
(i)
a supply of 150 x 16 mm. test tubes conforming to B.S.3218: 1982, 150/16, with rubber stoppers to fit.