Standards pharmacopoeia sieve, referred to as pharmacopoeia sieve, is an instrument used by pharmaceutical preparation manufacturers and pharmacopoeia units to detect and classify traditional Chinese medicine/western medicine powder, traditional Chinese medicine/western medicine liquid, and pharmaceutical granules and pills according to the "Chinese Pharmacopoeia". Introduce the standards pharmacopoeia sieve.
Standards pharmacopoeia sieve is used for sieving, testing and analysis of pharmaceutical powders, pharmaceutical granules and pharmaceutical liquids in traditional Chinese medicine and western medicine industries.
Standards pharmacopoeia sieve has two main specifications, namely Φ200*50 and Φ200*25.
The pharmacopoeia sieve stipulated by the Chinese Pharmacopoeia has a total of No. 1-9 sieves, the No. 1 sieve has the largest mesh number, and No. 9 sieve has the smallest mesh number, decreasing in turn. The mesh numbers of No. 1-9 Standards pharmacopoeia sieve are: 10 mesh, 24 mesh , 50 mesh, 65 mesh, 80 mesh, 100 mesh, 120 mesh, 150 mesh, 200 mesh.
Wire woven mesh: a widely used type of mesh, mesh size: 2.36mm-0.02mm, only square mesh.
Punching plate screen: mainly used for large mesh, the screen frame has two kinds of round holes and square holes, mesh size: 0.2 mm to several hundred mm.
Electroforming screen: mainly used in high-precision occasions, each screen can be within the average error range.
Mesh number (mesh) | Aperture | Mesh number (mesh) | Aperture | Mesh number (mesh) | Aperture | Mesh number (mesh) | Aperture |
5 | 4mm | 40 | 0.45mm | 180 | 88μm | 325 | 34μm |
6 | 3.2mm | 50 | 0.355mm | 190 | 80μm | 360 | 40μm |
8 | 2.5mm | 60 | 0.3mm | 200 | 76μm | 400 | 38.5μm |
10 | 2mm | 70 | 0.25mm | 220 | 70μm | 500 | 30.8μm |
12 | 1.6mm | 80 | 0.2mm | 240 | 65μm | 600 | 25μm |
14 | 1.43mm | 100 | 0.15mm | 250 | 63μm | 800 | 15μm |
16 | 1.25mm | 120 | 0.125mm | 260 | 57μm | 900 | 10μm |
18 | 1mm | 140 | 0.105mm | 280 | 55μm | 1000 | 8μm |
20 | 0.9mm | 150 | 0.1mm | 300 | 50μm | 1200 | 5μm |
30 | 0.6mm | 160 | 97μm | 320 | 48μm | Bottom cover | Nonporous |
"Chinese Pharmacopoeia" stipulates 6 kinds of powder grades and 9 kinds of sieves, and the powder classification is as follows:
Coarse powder: All can pass through No. 1 sieve, but mix no more than 20% of the powder that can pass through No. 3 sieve.
Coarse powder: All can pass through No. 2 sieve, but mix no more than 40% of the powder that can pass through No. 4 sieve.
Medium powder: All can pass through No. 4 sieve, but mix no more than 60% of the powder that can pass through No. 5 sieve.
Fine powder: all can pass through No. 5 sieve, and the content of powder that can pass through No. 6 sieve is not less than 95%.
Fine powder: all can pass through the No. 6 sieve, and the content of the powder that can pass through the No. 7 sieve is not less than 95%.
Very fine powder: refers to the powder that can pass through No. 8 sieve, and contains no less than 95% of the powder that can pass through No. 9 sieve.
Standards pharmacopoeia sieve is introduced here. I hope the above content can help you. For more detailed information, please consult Dahan Machinery.
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