Grade 113: 30µm Ultra high loading capacity with a particle retention making it ideal for use with coarse or gelatinous precipitates. Fastest flow rate of the qualitative grades. Creped surface. Thickest filter paper in the Whatman range. This filter is also available in the Whatman FilterCup. This is a convenient, disposable 70mm filter funnel with a 250mL capacity moulded from polypropylene with an integral, heat bonded filter.whatman grade 113/30μm湿性定性滤纸
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