BC1 B4

[Music]

I thought that the self-study section I went to before, the one where I practiced at home, would now be a test where the teacher would give us a piece to try. G1, G2, G3, G4, G5 are filters with filter media. Filter media are the materials of the filter media; the filter media examples from G1 to G5 are examples of filtration applications

here. What material is it made of? What does G stand for? [Music] everyone. Oh, I'm waiting to ask what the symbol on the filter paper means ? What are the symbols used to indicate the incoming filters? L1, L2, L3, right? Which filter can filter out incompetent people ? L1 is something like that. And what does G stand for? The

number is correct, the letter G stands for class. Oh my god, it's so easy to learn! I'll take the exam with these questions, I'll filter without thinking! Uh, those porous filter papers... which filter paper is the filter media? Which filter hole is the filter pellet? What G is the G4 filter? Simple filtration. [clears throat] No, it's

like they'll ask something similar. Then, what kind of filters are there in a mechanical filter? Which filter is the minib satorius genm, right? Can it filter bacteria? No, no, no filter can filter bacteria. What is the size of the milligon? Those are the questions of this type, you know. Then they ask, what are the filter papers called?

Which filter papers are the sizes of the filters? Which filters can filter pellets? Which filters can filter clear particles? In the filter pellets, the standard must be higher than 100%. Then, besides filtration, we have auxiliary substances to filter. What are those auxiliary substances? Name a few auxiliary substances to support the filtration process.