φ10×4.5cm 24 Mesh 304 Stainless Lab Sieves Economy Test Sieve 304 Stainless Steel Wire Cloth（0.8mm）

Allows characterization of product post milling (bought several sizes). 10-cm diameter is ideal for our use.

Part of a set I bought. All good and work well.

Used in laboratory setting for filtering organic liquids, works great.

I tested five of these sieves to see if they would be suitable for particle-size determination for soil and sediment analysis. They are not. The screen openings (i.e., spacing between wires, or hole sizes) that I measured using a microscope were different from those specified on the labels. For each screen I measured at least ten openings selected at random across the sieve. Here are the labeled screen openings and the mean actual size I measured, with standard deviation.Labeled size, Mean actual size ± std dev (µm)250, 270 ± 10224, 267 ± 5180, 218 ± 12125, 142 ± 10 90, 76 ± 24Some of these are off by a small amount, others by a much greater amount. It's not just a matter of the wrong label being applied because some of the measured sizes don't correspond to any other available sieve listed. Others might be simply mis-labeled; for example, the opening size in the sieves labeled 224 and 250 µm were not distinguishable. The '90 µm' sieve had a large degree of variability across the screen, and the openings were trapezoidal, not square, because the wires were 1-over, 1-under in one direction and 2-over, 2-under in the other direction.Note: I measured space between wires, wire thickness excluded. In other words I'm not measuring from the center of one wire to the center of the next, but measure across the gap only: from the edge of one wire to the nearest edge of the next.I think the manufacturer should be required to indicate clearly that the nominal screen size does not reflect actual values. As it is this is misleading and could result in someone wasting a lot of time or making wrong interpretations based on bad measurements. Does this product violate any sort of "truth in advertising" policy?These screens might be okay for some applications, but if you need precision and accuracy you'll need to measure them yourself or spend the money for a certified sieve. The specification on the label does not reflect actual screen opening size.

The picture made it seem much larger than it really is, but still usable.

I liked the product for experimenting, how it takes almost a month to get the product.

They work fine for the intended purpose of harvesting seeds....

Great quality

Prompt delivery works as described.

my powder is sifted

I bought this one for my incense making,I needed mesh 100 and this sieve works great,great quality.