--- product_id: 41935936 title: "F-100, Fluoride Test Paper, Box of 200 Strips" brand: "ctl scientific" price: "€ 94.53" currency: EUR in_stock: true reviews_count: 4 category: "Ctl Scientific" url: https://www.desertcart.hr/products/41935936-f-100-fluoride-test-paper-box-of-200-strips store_origin: HR region: Croatia --- # Detects fluoride β‰₯20 mg/L 200 strips per box for bulk testing Sensitive to fluoride & H2F2 gases F-100, Fluoride Test Paper, Box of 200 Strips **Brand:** ctl scientific **Price:** € 94.53 **Availability:** βœ… In Stock ## Summary > πŸ”¬ Stay ahead in fluoride analysis with lab-grade precision! ## Quick Answers - **What is this?** F-100, Fluoride Test Paper, Box of 200 Strips by ctl scientific - **How much does it cost?** € 94.53 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/41935936-f-100-fluoride-test-paper-box-of-200-strips) ## Best For - ctl scientific enthusiasts ## Why This Product - Trusted ctl scientific brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Bulk Testing Capacity:** 200 strips per box to keep your lab fully stocked and ready - β€’ **Clear Visual Indicator:** Instant color change for quick, reliable fluoride ion identification - β€’ **Interference-Resistant:** Engineered to minimize false positives from chlorates, bromates, and sulfates - β€’ **Professional Grade Only:** Designed exclusively for trained chemists and industrial use, ensuring lab-grade accuracy - β€’ **Precision Fluoride Detection:** Pinpoints fluoride presence with a clear color shift from pink-red to yellow-white ## Overview The F-100 Fluoride Test Paper offers a professional-grade solution for detecting fluoride ions and gaseous hydrogen fluoride with a sensitivity threshold of 20 mg/L. Featuring 200 strips per box, this pinkish-red paper changes color distinctly in the presence of fluoride, while minimizing interference from other chemicals. Intended strictly for industrial and scientific use, it requires expert handling and is not suitable for home water testing. ## Description This paper is used for the determination of fluoride ions and gaseous hydrogen fluoride (H2 F2). The pinkish-red paper turns yellowish-white in the presence of fluorides. Substantial amounts of chlorates, bromates and sulphates cause white discolorations of the paper. These interferences are readily circumvented. Limit of sensitivity: 20 mg/l fluoride *This paper is not suitable for testing fluoride levels in tap/drinking water* Product not intended for use by homeowners. Please request instruction sheet if further information is required. Review: It Works - What else do you need to know. It turns yellow when there’s fluorine. Don’t forget it needs to be activated with an acid below pH-2. Review: Not a stand alone product. - You need to be a chemist to use these strips, and just having having the strips is not enough. You need other testers (Ph) and other chemicals. This should not be sold at all or it should be sold with everything you need to test for fluoride. ## Features - Fluoride Test Paper , Box Of 200 Strips - Product not intended for use by homeowners. Please request instruction sheet if further information is required. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00S1UOLFQ | | Best Sellers Rank | #107,087 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #171 in pH Test Strips | | Brand | CTL Scientific | | Brand Name | CTL Scientific | | Customer Reviews | 4.4 out of 5 stars 16 Reviews | | Item Weight | 52 Grams | | Manufacturer | CTL Scientific | | Material | Pinkish-Red Paper | | Material Type | Pinkish-Red Paper | | Part Number | F-100 | ## Product Details - **Brand:** CTL Scientific - **Recommended Uses For Product:** Fluoride Test - **Manufacturer:** CTL Scientific - **Material:** Paper" or "Cellulose ## Images ![F-100, Fluoride Test Paper, Box of 200 Strips - Image 1](https://m.media-amazon.com/images/I/41J6YDdxk6L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ It Works *by F***. on March 30, 2022* What else do you need to know. It turns yellow when there’s fluorine. Don’t forget it needs to be activated with an acid below pH-2. ### ⭐ Not a stand alone product. *by S***Y on October 16, 2015* You need to be a chemist to use these strips, and just having having the strips is not enough. You need other testers (Ph) and other chemicals. This should not be sold at all or it should be sold with everything you need to test for fluoride. ### ⭐⭐ Two Stars *by A***R on May 25, 2018* Didn't indicate known fluoride samples dont work ## Frequently Bought Together - CTL Scientific, F-100, Fluoride Test Paper, Box of 200 Strips - Macherey-Nagel, 90757, Potassium Iodide Starch Paper Mn 260 He Highly Sensitive Paper, Box of 200 Strips - CTL Scientific, M8-100, M8 Paper - Chemical Agents Liquid Detectors, Booklet of 25 Strips --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/41935936-f-100-fluoride-test-paper-box-of-200-strips](https://www.desertcart.hr/products/41935936-f-100-fluoride-test-paper-box-of-200-strips) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-21*