Wire Mesh FAQs for Products, Costs & Shipping – TWP Inc.

(6) Technical

It is a unit of length in the metric system. One micron is equivalent to 0.00003937 of one inch.

A square foot is a unit of measurement of area. A piece of material measuring 12 inches by 12 inches is one square foot. To compute the number of square feet in a piece of wire mesh you multiple its width in feet times its length in feet. For example, a piece of wire mesh 4 feet wide and 3 feet long would be 12 square feet. A linear foot is a unit of measurement of length. A piece of material measuring, for example 3 feet wide by 15 feet long would be 15 linear feet. The same piece of material could be described as 45 square feet; 3 feet wide x 15 linear feet which equals 45 square feet. Note: Sometimes the term "running foot is used to mean linear... Read more

This specification covers industrial woven wire fabric, referred to as wire cloth, for general use including the separation of particles. Wire cloth can be made of any primary metal or metal alloy wire that is suitable for weaving.

You may purchase a copy of this certification directly from ASTM (American Society of Testing Materials) from their website

 

Sifting and sizing is generally done using a plain square weave woven mesh or a welded stainless mesh. Archeological digs have used our galvanized meshes for sifting purposes. Twilled weaves are not suitable for sizing or sifting because they do not have straight through holes

A measure of retention, expressed in microns, that specifies the equivalent diameter of the smallest particle from which the filter has a retention of 100%. In actual practice, most manufacturers assign absolute ratings on the basis of retention in the range from 98% - 99.999999%.

There are no straight through square openings in a dutch weave and the filtrate follows a tortuous path through the triangular passages in the mesh.