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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
For Your Every Summer RSVP, with Code: SUMMER15
Description
PALL 4929 Acrodisc Syringe Filter with wwPTFE Membrane - 0.2 µm, 25 mm (1000/pkg)Syringe filters are used in analytical chemistry applications to remove particulate contamination prior to analysis. Filtering a sample prior to sample injection into analytical instrumentation will help protect sensitive parts of the instrument from particulate build up and reduce system downtime. Sample filtration using syringe filters containing 0. 45 m (HPLC) or 0. 2 m (UHPLC) pore size membranes will also extend the life of chromatography columns
Syringe filters are used in analytical chemistry applications to remove particulate contamination prior to analysis. Filtering a sample prior to sample injection into analytical instrumentation will help protect sensitive parts of the instrument from particulate build-up and reduce system downtime. Sample filtration using syringe filters containing 0.45 μm (HPLC) or 0.2 μm (UHPLC) pore size membranes will also extend the life of chromatography columns by preventing particulate from blocking the flow path between the column packing. Pall’s Acrodisc Syringe Filters with wwPTFE membranes have been designed to protect analytical instrumentation and improve the reliability of results. wwPTFE membrane devices are chemically compatible with a wide variety of common solvents and are suitable for use in both aqueous and organic applications. These syringe filters are constructed with solvent compatible polypropylene material. The polypropylene plastic provides the syringe filter with exceptional strength, it is the highest grade of plastic with minimal additives and passes United States Pharmacopeia (USP) Biological Reactivity Test, In Vivo <88> plastics testing. Both the wwPTFE membrane and polypropylene housing are extremely low in levels of potential extractables that can lead to chromatographic interference. The devices are low in protein and API binding which make them ideal for drug studies, such as dissolution testing. Pall provides HPLC certification with these products, ensuring that analytical results will not be compromised by extractable filter materials. Pall membranes are tested for compatibility with common HPLC solvents including water, methanol, and acetonitrile, using established HPLC procedures. In addition, to verify low levels of UV-detectable extractables, samples of the syringe filters are evaluated prior to release. Standard 25 mm Acrodisc syringe filters are designed for the filtration of sample volumes up to 100 mL. They feature an effective filtration area of 2.8 cm2.Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 351 reviews
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Product Reviews
★★★★★ 5
My paper bowls of choice.
Size: 50 Count
I have been a return buyer of these bowls and amazon basics plates, as they are sturdy and well made, even for liquids. I think there is a generous quantity for the price. I use for my to go meals on the way to work, so I dont have my whole kitchen accumulating in my car. They are good sized and you can fit a decent serving. Will keep buying.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Sturdy paper bowls, economical quantity purchase
Size: 300 Count
I previously bought 50 (?) of the paper plates to check the quality and see how well they hold up before making quantity purchases of other paper products. The bowls hold up well though I use them primarily for cut up avocados, sliced tomatoes, cole slaw, etc. I have used them in the microwave under 15 seconds to reheat toasted English muffins with marmalade with no problem. I use Pyrex glass bowls in the microwave for veggies and soups, so I am unable to speak on how well the bowls hold up with hot foods in the microwave.
I resisted buying and using paper bowls and plates for a long time; however, with my 80th birthday fast approaching, the fewer dishes I have to wash means less time standing on my feet.
I am an experienced shopper, and these quality paper products bought in bulk are the best buy I have found. I recommend them.
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Reviewed in the United States on March 18, 2026
★★★★★ 4
My go to.
Size: 50 Count
Nice. Sturdy and good thickness. Nice size. Bought these along with smaller. Leak proof.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Strong and very convenient
Size: 50 Count
These paper bowls are sturdy and hold up well even with hot or liquid foods. They don’t get soggy easily and are microwave safe, which makes them very convenient. The size is also great for soups, cereal, or leftovers. Good quality for disposable bowls and very practical for everyday use.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Sturdy, great value, very utilitarian
Size: 50 Count
Exactly what I wanted. Exact quality thickness and sturdiness. Only small downside is they're coated in a wax like substance and stick together so you have to pry them apart and if you microwave something, it tends to meld together and also stick into the bowl. But I still love them especially the price.
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Reviewed in the United States on March 30, 2026
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