The Whatman® Quartz Filter, Grade QM-H manufactured by Whatman International Ltd. contain low heavy metal content. The filters can be used at temperatures up to 900°C.
Specification
Material: Quartz membrane Packaging: Pack of 50 Diam.: 50 mm Thickness: 430 nm
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Whatman® Quartz Filter, Grade QM-B, 42 mm, Whatman International Ltd. (CAT#: STEM-L-5452-LC)