Which attribute is used to identify sieve openings when openings are smaller than 1/4 inch?

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Multiple Choice

Which attribute is used to identify sieve openings when openings are smaller than 1/4 inch?

When sieve openings are very small, the size is identified by how many openings occur in one inch of mesh. This openings-per-inch designation (the sieve number) uniquely defines the aperture because the actual hole size depends on the wire thickness and how the wires are woven, which can vary between manufacturers. Using the number of openings per inch provides a standardized way to specify fine sieve sizes, like those you’ll see in No. 60 or No. 200 sieves, so the classification remains consistent across sets. The other attributes aren’t used for identifying these small openings: labeling by inches is used for coarser sieves, the wire gauge affects the construction but isn’t the labeling method for the aperture, and the total stack size doesn’t indicate the individual opening size.

When sieve openings are very small, the size is identified by how many openings occur in one inch of mesh. This openings-per-inch designation (the sieve number) uniquely defines the aperture because the actual hole size depends on the wire thickness and how the wires are woven, which can vary between manufacturers. Using the number of openings per inch provides a standardized way to specify fine sieve sizes, like those you’ll see in No. 60 or No. 200 sieves, so the classification remains consistent across sets. The other attributes aren’t used for identifying these small openings: labeling by inches is used for coarser sieves, the wire gauge affects the construction but isn’t the labeling method for the aperture, and the total stack size doesn’t indicate the individual opening size.

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