Quantitative filter papers, hardened low ash grades, grade 50, Whatman™

供应商: CYTIVA WHATMAN
1450-055 1450-070 1450-090 1450-110 1450-125 1450-150 1450-185 1450-240 1450-320 1450-500 1450-917 1450-042 1450-916 1450-993
WHAT1450-055EA 0 CNY
WHAT1450-055 WHAT1450-070 WHAT1450-090 WHAT1450-110 WHAT1450-125 WHAT1450-150 WHAT1450-185 WHAT1450-240 WHAT1450-320 WHAT1450-500 WHAT1450-917 WHAT1450-042 WHAT1450-916 WHAT1450-993
Quantitative filter papers, hardened low ash grades, grade 50, Whatman™
过滤器 滤纸 Quantitative Filter Paper
These highly glazed filter papers made from high quality cotton linters support vacuum filtration in Büchner funnels or Hirsch funnels and enable strong retention of very fine crystalline precipitates.

  • Thinner filter design (average thickness 115 µm) than most Büchner filter papers
  • Nominal particle retention of 2,7 µm
  • Slow flow rates (Herzberg filtration speed 2685 s)
  • High purity and low ash content (0,015% ash maximum)
  • Acid-treated for high wet-strength and chemical resistance
  • Hardened to minimize fiber shredding

This hard, very thin, high wet-strength Grade 50 quantitative filter paper withstands wet handling and precipitate removal by scraping. With very minimal fiber shedding, they are an especially good choice for use as carriers in integrated circuits.

Whatman low ash hardened filter paper for quantitative analysis is available in three grades. All three are designed for use in gravity and vacuum suction filtration in Buchner and Hirsch funnels. Grade 50 is also available in Smear Tab format for wipe testing, such as surface testing for radionuclide contamination.
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