Glass filter

Japanese: ガラスフィルター - がらすふぃるたー
Glass filter

...There are two methods for separating precipitates: filtration and centrifugation, but filtration is the most common. Filtration can be done using filter paper or glass filters, with the mesh size being selected appropriately depending on the nature of the precipitate. Filter paper includes No. 5A for rapid quantification, No. 5B for general quantification, No. 5C for particulate quantification, No. 6 for standard quantification, and No. 7 for the highest quality quantification. Glass filters include G1, G2, G3, and G4, with G4 having the finest mesh size, 5 to 10 μm.

*Some of the terminology that refers to "glass filter" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…沈殿の分離には,ろ過法と遠心分離法があるが,ろ過法が一般的である。ろ過には,ろ紙を用いる方法とガラスフィルターを用いる方法とがあるが,沈殿の性質により目の粗さを適当に選択する。ろ紙には迅速定量用のNo.5A,一般定量用のNo.5B,微粒子定量用のNo.5C,標準定量用のNo.6,最高級定量用のNo.7などがあり,またガラスフィルターにはG1,G2,G3,G4があるが,G4が最も目が細かく,5~10μmの大きさである。…

※「ガラスフィルター」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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