Difference between qualitative and quantitative filter paper?

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I’m buying filter paper for the first time as I’m getting prepared to start CRC’ing. What’s the difference between the two papers?

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It appears that the Qualitative paper is what we are after, for most applications.

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Qualitative = quality = generally higher quality product, slower flow, higher retention

Quantitative = quantity = quicker flow, lower retention

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God damn. Thank you, so simple

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This link is a guide to the various grades of Whatman qualitative filter paper

https://www.gelifesciences.com/en/us/solutions/lab-filtration/knowledge-center/a-guide-to-whatman-filter-paper-grades

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This site beats out amazon by alot.

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Quantitative filter paper is made so it burns ashless. This is so you can burn the filter paper in thermogravimetric analysis and know exactly how much weight was on it

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Oof sorry for the misinfo might have been recalling on old notes

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I think you were relating it back to data sets. Quantitative data is numeric data That’s usually calculated from qualitative data, which is more of the “why”. I used to work as a market research contractor helping to convert qualitative data into quantitative summaries.

Big companies like Proctor & Gamble, Johnson and Johnson, Ford, etc. don’t care to hear the personalized back story behind why (qualitative) you don’t like a particular item. They just want to know how many (quantitative) people said they did or did not like the same thing about a product.

That’s a really generalized way to sum it up, and has zero relevance to filter paper, but I spent all this time typing so I’m going to post it anyways.

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