1.1 This standard ( Part 2 ) covers test sieves, with screening medium of perforated plate having either round or square apertures, for use in testing in the classification of materials according to particle size.
1.2 It applies to test sieves having:
a) round holes from 125 mm down to 1 mm aperture size;
b) square holes from 125 mm down to 4 mm aperture size; and
c) round holes from 200 mm down to 140 mm aperture size ( non-ISO sizes ).
IS 460 Pt.2-1985 history
1985IS 460 Pt.2-1985 Specification for test sieves Part 2 Orifice plate test sieves