Construction and Materials: Test sieves are typically made of stainless steel, which offers durability, resistance to corrosion, and ease of cleaning. The sieving mesh is either woven wire or perforated metal, with the wire mesh being the most common type. The frame is also made of stainless steel or brass, providing a sturdy structure to support the mesh.

Mesh and Aperture Size: The mesh size, or aperture, of a test sieve, is defined by the number of openings per inch (or per millimeter) and determines the size of particles that can pass through. Sieves are available in a wide range of mesh sizes, from coarse to fine, allowing for precise separation and classification of particles according to size.

Standards and Certification: High-quality test sieves conform to international standards, such as ISO 3310, ASTM E11, or BS 410, ensuring consistency and reliability in particle size analysis. Certified sieves come with documentation verifying their compliance with these standards, which is critical for industries requiring traceable and reproducible results.

Applications: Test sieves are used in a variety of applications, including quality control testing, grading, sorting, and sizing of materials. In the pharmaceutical industry, they ensure uniformity in the size of powders and granules. In construction, they are used to test the gradation of aggregates and soils. The food industry uses sieves for checking the consistency of flour, sugar, and other powdered products.

Sieve Shakers: Often used in conjunction with test sieves, sieve shakers provide automated shaking or vibration to assist in the separation process, ensuring consistent and repeatable results.