--- product_id: 121189320 title: "1001-042 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100 mL Flow Rate, Grade 1, 42.5 mm Diameter (Pack of 100)" brand: "whatman" price: "โ‚ฌ 20.16" currency: EUR in_stock: true category: "Whatman" url: https://www.desertcart.fr/products/121189320-1001-042-quantitative-filter-paper-circles-11-micron-10-5 store_origin: FR region: France --- # Versatile use across multiple industries 4.25 cm precise diameter Grade 1 purity for lab-grade filtration 1001-042 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100 mL Flow Rate, Grade 1, 42.5 mm Diameter (Pack of 100) **Brand:** whatman **Price:** โ‚ฌ 20.16 **Availability:** โœ… In Stock ## Summary > ๐Ÿงช Elevate your lab game with Whatman โ€“ where precision meets versatility! ## Quick Answers - **What is this?** 1001-042 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100 mL Flow Rate, Grade 1, 42.5 mm Diameter (Pack of 100) by whatman - **How much does it cost?** โ‚ฌ 20.16 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/121189320-1001-042-quantitative-filter-paper-circles-11-micron-10-5) ## Best For - whatman enthusiasts ## Why This Product - Trusted whatman brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - โ€ข **Compact & Lightweight:** At just 4.54g and 4.25cm diameter, it fits seamlessly into any lab setup without bulk. - โ€ข **Educational Essential:** A go-to tool for teaching qualitative analytical separations in classrooms worldwide. - โ€ข **Eco-Friendly Lab Staple:** Made from high-quality paper, combining performance with sustainability. - โ€ข **Cross-Industry Power Player:** Trusted in food, agriculture, air pollution, and gas detection for reliable results. - โ€ข **Precision Filtration Mastery:** Grade 1 Whatman paper ensures crystal-clear liquid clarification every time. ## Overview Whatman Grade 1 filter paper, sized at 4.25 cm diameter and weighing 4.54 g, is a trusted laboratory staple manufactured by GE Healthcare. Renowned for its high purity and reliable filtration, it serves diverse applications from food industry testing to environmental monitoring and educational labs, making it an indispensable tool for professionals seeking consistent, high-quality results. ## Description This Whatman 4.25cm, grade 1, cellulose filter paper is the most widely used filter paper for routine applications with medium retention (11ยตm) and flow rate. Traditionally, this grade is used in qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate. In agriculture, it is used for soil analysis and seed testing procedures. It is also used for numerous routine techniques in the food industry to separate solid foodstuffs from associated liquid or extracting liquid; and is widely used in education for teaching simple qualitative analytical separations. In air pollution monitoring, using circles or rolls, atmospheric dust is collected from airflow and the stain-intensity is measured photometrically. For gas detection, the paper is impregnated with a chromogenic reagent and color formation is quantified by optical reflectance. Retention: 11ยตm. Diameter: 4.25cm. 100/Pack. Whatman #: 1001-042. ## Features - 4.25cm - Grade 1 - Covers a wide range of laboratory applications; frequently used for clarifying liquids - Areas of use include the food industry, agriculture, air pollution monitoring, and gas detection - Widely used in education for teaching simple qualitative analytical separations ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | GE Healthcare | | Part number | 1001-042 | | Item Weight | 4.54 g | | Product Dimensions | 8.89 x 5.84 x 2.54 cm; 4.54 g | | Item model number | F1000-1 | | Material | Paper | | Item Package Quantity | 1 | | Batteries included? | No | | Batteries Required? | No | ## Images ![1001-042 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100 mL Flow Rate, Grade 1, 42.5 mm Diameter (Pack of 100) - Image 1](https://m.media-amazon.com/images/I/612Nq1-V77L.jpg) ## Questions & Answers **Q: What's a good product to use the smaller ones with? Amazon sell anything good?** A: You question makes no sense at all. **Q: If needed, can these be cut to fit a specific size of funnel? Or would I be better off just buying some of the square filters and cutting those?** A: Buy the correct size for your Buckner funnel; if you are using a gravity funnel, look up how to fold round filter paper for this type filter. **Q: Will these tolerate chlorinated solvents or will they dissolve?** A: This filters will tolerate ## Frequently Bought Together - Whatman 1001-042 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100mL/sq inch Flow Rate, Grade 1, 42.5mm Diameter (Pack of 100) - Weigh Boats Medium (100ml, 125 Pack) Disposable Plastic Trays for Scale, Anti-Static Square Tray Weighing Dishes, Polystyrene Lab Dish for Powder Weight, Mixing Epoxy, Food Sample Container, Pour Boat - ALDON Innovating Science 0.1M Hydrochloric Acid, 1L Excellent for Chemistry or Refinement Experiments - The Curated Chemical Collection --- ## Why Shop on Desertcart? - ๐Ÿ›’ **Trusted by 1.3+ Million Shoppers** โ€” Serving international shoppers since 2016 - ๐ŸŒ **Shop Globally** โ€” Access 737+ million products across 21 categories - ๐Ÿ’ฐ **No Hidden Fees** โ€” All customs, duties, and taxes included in the price - ๐Ÿ”„ **15-Day Free Returns** โ€” Hassle-free returns (30 days for PRO members) - ๐Ÿ”’ **Secure Payments** โ€” Trusted payment options with buyer protection - โญ **TrustPilot Rated 4.5/5** โ€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.fr/products/121189320-1001-042-quantitative-filter-paper-circles-11-micron-10-5](https://www.desertcart.fr/products/121189320-1001-042-quantitative-filter-paper-circles-11-micron-10-5) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-04-23*