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Description
Ahlstrom Grade 615 Qualitative Filter Paper - 100 CirclesAhlstrom Grade 615 Qualitative Filter Paper 100 Circles Ahlstrom 615 is a fast filter grade with a rough surface that is intermediate in properties between Grade 617 and Grade 631. Low ash grade contains more than 95% super refined alpha cellulose and linter fibers. Standard qualitative filter papers are suitable for quadrant folded or gravity flow applications. These grades contain a high level of alpha cellulose that provides high purity but will
Ahlstrom Grade 615 Qualitative Filter Paper - 100 Circles
Ahlstrom’s qualitative grades of filter paper are, by definition, recommended for use in analytical methods, which determine or identify particulate constituents of a mixture irrespective of the amount present. Qualitative filter papers are often used in routine separation work that still requires high purity and consistent performance.
- Grade: 615
- Retention in µm: 25 µm
- Filtration Speed punch Herzberg sec/100mls: 29 s/100 mL
- Filtration Speed Rapidity mls/min: 235 mL/min
- Loading Capacity: High
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Exchange/Return Notes
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4.4 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Smells great and works great too!
Style: Spray (2 Oz)
Great sunscreen and smells fantastic. Not sticky or greasy feeling, but the bottle seems a bit small for the price. Took it to the beach for the 4th of July week and it was the first time I didn't come back with my "base burn". So it really works well. Great size for carry-on travel, but again a bit pricey for the amount you get.
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Reviewed in the United States on August 5, 2024
★★★★★ 5
Amazing smell amazing feel
Style: Spray (6 Oz)
Product arrived without damage! My absolute favorite sunscreen! If it’s ever on sale, I highly recommend trying as it’s not the most affordable. Never makes me feel greasy and is so lightweight! I never have breakouts with this either. Smell just adds to my obsession more too
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Reviewed in the United States on October 20, 2025
★★★★★ 5
Perfect carryon sunscreen
Style: Spray (2 Oz)
This sunscreen smells so good. It sprays well and is the perfect size for vacationing with only a carryon.
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Reviewed in the United States on November 29, 2025
★★★★★ 4
Great for travel
Style: Spray (2 Oz)
Got through TSA. Perfect for traveling. I like the fact that it has a spray top. Perks is it smells really good while also protecting you. Overall enjoyed the product
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Reviewed in the United States on August 11, 2025
★★★★★ 5
Best spray I’ve tried
Style: Spray (6 Oz)
Great product, worth the cost
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Reviewed in the United States on April 25, 2026