Thin-Film Sample Support Windows - Precut Circles
Thin-Film Sample Support Windows are available in Pre-Cut Circles interleaved with lint-free tissue carriers.
• Precut Circles
• Interleaved with lint-free tissue
• 2.5" (63.0mm)
• 3.5" (89.0mm)
• 500 sets per package
• Order 12 or more and receive $5.00 off standard price per package
Made in USA
The Precut Circle Thin-Film Sample Support Windows are pre-cut in circular shapes for easy assembly onto XRF sample cups. The Chemplex Precut Circle Thin-FIlm Sample Support windows are also are packaged in a box and interleaved with lint-free tissue carriers so the Thin-Film Sample Support Windows do not adhere to eachother.
Fabrication and storage of all thin-films is performed under environmentally controlled conditions and immediately individually shrink-wrapped in clear plastic to preserve the original integrity. These extra precautionary measures are necessary to avoid the potential possibility of inadvertently introducing trace levels of contaminates that may affect x-ray data.
IMPORTANT: The chemical resistances of thin-films contained in the following table are provided as a matter of informational purposes only. They are not intended to preclude actual testing and suitability of use and applications. The responsibility of acceptance, suitability, testing, evaluation and safety resides totally with the user. Chemplex® Industries, Inc. assumes no liability whatsoever in using any thin-film sample support window substances and assumes no liability whatsoever for any information, advertisement, inferences, reports or any other form of communication written or orally presented.
Our 7.5µm Kapton® thin-film available from Chemplex® exhibits similar properties as the previous traditionally used type: 7.5µm gauge, high sample retention tensile strength, equivalent % Transmittance values of x-rays, chemical resistance and melting points. The difference between the other Kapton® films and the Chemplex® 7.5µm Kapton® thin-film is “it is not subject to the U.S. International Traffic in Arms Regulations (ITAR).” Reportedly, an unknown slight difference between the ITAR controlled and the new 7.5µm Kapton® thin-film may affect the reliance on previously established calibration data. Chemplex® suggests judiciously re-examining this issue for verification prior to implementing an analytical program.
IMPORTANT: Some window materials may not be suitable for analyzing sulfur in diesel fuel, gasoline and other petroleum products containing aromatic hydrocarbons. ASTM D-6445-99 (Reapproved 2004) e1: "Samples of high aromatic content may dissolve polyester and polycarbonate films. In these cases, other materials besides these films may be used for X-ray windows, provided that they do not contain any elemental impurities. ASTM D 4294-08a: "Any film that resists attack by the sample, is free of sulfur, and is sufficiently X-ray transparent can be used. Film types can include polyester, polypropylene, and polycarbonate. However, samples of high aromatic content can dissolve polypropylene, polycarbonate and polyester."
® SpectroCertified, Prolene, Etnom, Ultra-Polyester and Chemplex are registered trademarks of Chemplex Industries, Inc.
® Mylar and Kapton are registered trademarks of E. I. DuPont de Nemours & Co., Inc.