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Chemplex - Model 325 -Microporous Polypropylene Gas Permeable Film Membrane
Microporous Film is a gas permeable membrane that enables the analysis of non-volatile liquid and powdered sample substances in helium flushes or vacuum. Pressure differentials within the sample cup and sample chamber are equalized while maintaining a taut thin-film sample support plane. The Series 1500 XRF Sample Cups are designed for use with Microporous Film.
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- One of two supplied "Snap-On Rings" included with the 1500 Series Sample Cups is used to attach Microporous Film to the Cell neck of the open end of the sample cup nearest the outer integrated flange.
- The sample cup Cell is designed with the unique "bead-to-indent" geometry that creates taut thin-film sample support planes and effective seals against leakage.
- The second included "Snap-On Ring" is used to affix a thin-film sample support window to the opposite open end of the sample cup.
- In practice, the illustrated assembly procedure is reversed. The thin-film sample support is attached first enabling one or more sample cups to be conveniently filled from the top end; Microporous Film is attached last.
- Microporous Film is also available in Easy-to-Use Precut Circles for elimination of trimming and convenience of attachment to Chemplex XRF Sample Cups.
- Equalizes pressure differentials within sample cups and sample chamber
- Maintains flat thin-film sample support window planes
- Maintains uniform target-to-sample distances
- Roll: 3.0" (76.2mm) dia X 200" (508cm) long
- Precut Circle: 2.5" (63.5mm) dia X 100 sheets