This is British Standard BS 882:1201 Part 2, 1973, covering aggregates from natural sources for conc..

This is British Standard BS 890:1972, covering building limes.

This is a 200mm diameter BS test sieve with a 1.00mm mesh aperture, used for finer aggregate/sand gr..

This is a 200mm diameter BS test sieve with a 2.00mm mesh aperture, used for finer aggregate/sand gr..

This is a 200mm diameter BS test sieve with a 300 micron mesh aperture, for fine sand/silt separatio..

This is a 200mm diameter BS test sieve with a 425 micron mesh aperture, a standard size in silt/sand..

This is a 200mm diameter BS test sieve with a 500 micron mesh aperture, used for fine sand grading t..

This is a 200mm diameter BS test sieve with a 600 micron mesh aperture, used for fine sand grading t..

This is a 200mm diameter BS test sieve with a 75 micron aperture, the conventional silt/clay boundar..

This is a 200mm diameter BS test sieve pair at 0.425mm and 0.075mm apertures, used for fine aggregat..

This is a 200mm diameter BS test sieve set spanning 2, 1, 0.6, 0.5, 0.425, 0.3, 0.15 and 0.075mm ape..

This is a 200mm BS sieve lid, a flat cap used to close the top of a sieve stack and prevent sample l..

This is a 200mm BS sieve receiver, a solid-bottom collection pan placed at the base of a sieve stack..

This is a 300mm diameter BS test sieve with a 10mm aperture, used for grading coarse aggregate fract..

This is a 300mm diameter BS test sieve with a 14mm aperture, used for grading coarse aggregate fract..

This is a 300mm diameter BS test sieve with a 20mm aperture, used for grading coarse aggregate fract..

This is a 300mm diameter BS test sieve with a 28mm aperture, used for grading coarse aggregate fract..

This is a 300mm diameter BS test sieve with a 37.5mm aperture, used for grading coarse aggregate fra..

This is a 300mm diameter BS test sieve with a 5mm aperture, used for grading coarse aggregate fracti..

This is a 300mm diameter BS test sieve with a 50mm aperture, used for grading coarse aggregate fract..