What is the difference between IS 460 Part 1 and Part 2?

Part 1 specifies woven wire cloth test sieves (typically used for finer materials), while Part 2 covers perforated plate test sieves (typically used for coarser aggregates > 4.75mm).

What materials are allowed for manufacturing the sieve wire cloth?

Phosphor bronze, brass, or stainless steel, selected based on the aperture size, chemical requirements, and durability needs.

What are the standard depths for a 200 mm diameter test sieve?

The standard full depth to the wire cloth is 50 mm, and the half depth is 25 mm.

IS 460

: 2000

Test Sieves: Part-I Wire Cloth Test Sieves

CurrentFrequently UsedSpecificationMaterials Science · Sieves, Sieving and Other Sizing Methods

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This standard specifies the requirements for woven wire cloth test sieves used for particle size analysis of granular materials like soils, aggregates, and powders. It details aperture size tolerances, acceptable wire diameters, and standard frame dimensions essential for consistent and standardized laboratory testing.

Test Sieves: Part-I Wire Cloth Test Sieves

Quick Reference Values

Standard frame diameters200 mm and 300 mm

Full depth for 200 mm diameter frame50 mm

Half depth for 200 mm diameter frame25 mm

Wire cloth aperture range32 microns to 125 mm

Practical Notes

Woven wire cloth sieves, especially fine ones (e.g., 75 microns), are susceptible to blinding (clogging) and wire distortion; always use a soft bristle brush rather than sharp objects to clean the mesh.

For highly abrasive materials, specify stainless steel wire cloth rather than brass or phosphor bronze to maintain aperture tolerances and increase the lifespan of the sieve.

Routinely verify that sieve frames nest perfectly with lids and receiver pans to prevent fine material loss during mechanical shaking.