What size sieve is 120 mesh?

Types and specifications of drug sieve, and the corresponding relationship between drug sieve and sieve purpose;

There are perforated screens and mesh screens. The national standard R40/3 series is adopted, and the screen number is 1-9. 1No. sieve ≈ 10 mesh; No.5 sieve ≈80 mesh; No.6 sieve ≈ 100 mesh; No.7 sieve ≈ 120 mesh; No.9 sieve ≈200 mesh.

Classification of powder:

The powder is divided into six grades by 1-9 sieve: coarsest powder, coarse powder, medium powder, fine powder, finest powder and superfine powder. Among them, the coarsest powder refers to the powder that can completely pass through the 1 sieve, but no more than 20% of it can pass through the No.3 sieve; Fine powder refers to powder that can completely pass through No.5 sieve, and the content of powder that can pass through No.6 sieve is not less than 95%.

Terms:

According to the provisions of China Pharmacopoeia, 1-9 (also known as standard pharmacopoeia sieve) and 1 have larger mesh numbers, and the mesh numbers of No.2, No.3, No.4, No.5, No.6, No.7, No.8 and No.9 decrease in turn.

The mesh numbers are: 10 mesh, 24 mesh, 50 mesh, 65 mesh, 80 mesh, 100 mesh, 120 mesh, 150 mesh and 200 mesh respectively. Pharmacopoeia sieve refers to the stainless steel sieve with uniform specifications used for drug production according to the provisions of Pharmacopoeia. Used in pharmaceutical enterprises to screen liquids, powders, solid particles, etc.