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18 Gauge x 4
100 env/pk
20G x 120mm
Blue Skin Marker
Filter Circles, 320mm Dia, Hardened Ashless Grade 541, 100/pk (1541-320) 18 Gauge x 4Whatman filter papers are world renowned as the standard for laboratory filtration and are associated with quality, reliability and customer service. Manufactured from high quality cotton linters, which have been treated to achieve a minimum alpha cellulose contact of 98%. Used for general filtration and exhibit particle retention levels down to 2. 5 m. Used in qualitative analytical techniques to determine and identify materials. Offers a wide choice
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