How do I specify a 10 mm round hole sieve according to this code?

The designation would be 'R 10', where 'R' stands for a round perforation and '10' is the nominal diameter in millimetres.

What does the symbol 'L' mean in a sieve designation?

'L' designates a slotted (oblong) perforation. The designation would also include the width and length, for example 'L 8 x 30'.

Does this standard apply to wire cloth or wire mesh sieves?

No, this code is specifically for industrial plate sieves (perforated plate). Wire mesh sieves are covered by separate standards, such as the IS 460 series.

IS 10483

: 1983

Code for designating perforations of industrial plate sieves (identical with ISO/DIS 7806)

CurrentSpecializedCode of PracticeMaterials Science · Sieves, Sieving and Other Sizing Methods

Download PDF BIS Portal Google

This standard establishes a uniform code for designating the perforations in industrial plate sieves. It provides a system for specifying the shape (round, square, slotted) and size of the openings to ensure consistency in manufacturing and procurement.

Code for designating perforations of industrial plate sieves (identical with ISO/DIS 7806)

Quick Reference Values

Designation Symbol for Round HolesR

Designation Symbol for Square HolesS

Designation Symbol for Slotted (Oblong) HolesL

Designation FormatShape Symbol followed by Nominal Size (e.g., R 10)

Practical Notes

This code is solely for the designation (naming convention) of perforations. It does not cover material specifications, manufacturing tolerances, or testing procedures, which are found in other standards like the IS 460 series.

As this standard is identical to ISO 7806, it facilitates the specification and procurement of industrial sieves in international trade.

The designation applies to the nominal size of the perforation, not the effective screening area or other performance characteristics.