About this item
Whatman Grade 50 quantitative hardened low ash filter paper is highly glazed to enable recrystallization of very fine precipitates using Büchner funnel or Hirsch funnel filtration.
- 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.
To order chemicals, medical devices, or other restricted products please provide ID that includes your business name & shipping address via email [email protected] or fax 484.881.5997 referencing your VWR account number. Acceptable forms of ID are:
- • State issued document with your organization's Federal Tax ID Number
- • State issued document with your organization's Resale Tax ID Number
- • City or County issued Business License
- • State Department of Health Services License
- • Any other ID issued by the State that includes the business name & address
* ATTN: California Customers may require additional documentation as part of the CA Health & Safety Code. Products that fall under this regulation will be placed on a mandatory 21-day hold after documentation is received. VWR will not lift restrictions for residential shipping addresses.
Specifications
- Catalog No:
- CA11013-760
- CA28485-165
- CA28485-143
- CA28485-121
- CA28485-100
- CA28485-085
- CA28485-063
- CA28485-041
- CA28485-020
- CA28485-019
- CA76419-604
- CA70240-144
- CA11013-644
- CA11013-358
- CA11013-356
- Thickness:
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- 115 µm (nominal)
- Particle retention:
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- 2.7 µm (Particle retention rating at 98% efficiency), in liquid max.
- Basis weight:
- 96 g/m²
- 96 g/m²
- 96 g/m²
- 96 g/m²
- 96 g/m²
- 96 g/m²
- 96 g/m²
- 96 g/m²
- 96 g/m²
- 96 g/m²
- 96 g/m²
- 96 g/m²
- 96 g/m²
- 96 g/m²
- 96 g/m²
- Burst strength:
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- 0.627 bar, wet burst; 2.275 bar, dry burst
- Flow rate:
- Slow
- Slow
- Slow
- Slow
- Slow
- Slow
- Slow
- Slow
- Slow
- Slow
- Slow
- Slow
- Slow
- Slow
- Slow
- Recommended flow rate:
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- 10 ml/min (Water)
- Tensile strength:
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
- 84 N/15 mm, Tensile M/D Dry
Specifications
Related Information
Certificates
Search by Lot Number10035-276_16813301 28485-019_16981411 28485-019_17083561 28485-020_17244617 28485-063_16965998
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