WHA10300045
Whatman® prepleated quantitative filter paper, ashless, Grade 589/1 1/2 black ribbon
circles, diam. 150 mm, pack of 100
Sinônimo(s):
10300045, Whatman filter, Whatman paper, Z695343, paper filter
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About This Item
Código UNSPSC:
41104900
NACRES:
NB.24
Produtos recomendados
Materiais
cellulose filters
circles
embalagem
pack of 100
fabricante/nome comercial
Whatman 10300045
Whatman Article No. 28414103 (US reference)
Parâmetros
25 sec/100 mL speed (Herzberg)
Diâmetro
150 mm
espessura
190 μm
cinzas
≤0.01%
tamanho de poro
12-25 μm (Particle retention)
peso base
80 g/m2
Categorias relacionadas
Descrição geral
Whatman quantitative filters are designed for gravimetric analysis and the preparation of samples for instrumental analysis. They are available in three formats designed to meet your specific needs.
Ashless: 0.007% ash maximum for Grades 40 to 44 and a maximum of 0.01% for the 589 Grades-very pure filters suitable for a wide range of critical analytical filtration procedures.
Hardened low ash: 0.015% ash maximum-treated with a strong acid to remove trace metals and produce high wet strength and chemical resistance. These filters are particularly suitable for Büchner filtration where the tough smooth surface of the filter makes it easy to recover precipitates.
Hardened ashless: 0.006% ash maximum-acid hardened to give high wet strength and chemical resistance with extremely low ash content. The tough surface makes these filters suitable for a wide range of critical filtration procedures.
Grade 589/1 ½ : 12-25 μm (fast filter paper)
Prepleated ′Black Ribbon Filter′, the established standard in quantitative analysis for the filtration of coarse precipitates (class 2a acc. to DIN 53 135). Ashless filter paper with very high flow rate. Used for many quantitative standard methods, especially for gravimetric applications (e.g., determination of the ash content in foodstuffs), or for the Blaine test in the cement industry.
Ashless: 0.007% ash maximum for Grades 40 to 44 and a maximum of 0.01% for the 589 Grades-very pure filters suitable for a wide range of critical analytical filtration procedures.
Hardened low ash: 0.015% ash maximum-treated with a strong acid to remove trace metals and produce high wet strength and chemical resistance. These filters are particularly suitable for Büchner filtration where the tough smooth surface of the filter makes it easy to recover precipitates.
Hardened ashless: 0.006% ash maximum-acid hardened to give high wet strength and chemical resistance with extremely low ash content. The tough surface makes these filters suitable for a wide range of critical filtration procedures.
Grade 589/1 ½ : 12-25 μm (fast filter paper)
Prepleated ′Black Ribbon Filter′, the established standard in quantitative analysis for the filtration of coarse precipitates (class 2a acc. to DIN 53 135). Ashless filter paper with very high flow rate. Used for many quantitative standard methods, especially for gravimetric applications (e.g., determination of the ash content in foodstuffs), or for the Blaine test in the cement industry.
Características e benefícios
- Herzberg filtration speed of 50 s*
- Black ribbon filter′ for Fast filtration of coarse precipitates
- High purity (< 0.01% ash)
- Blaine test and ash content test compatible
- Also available prepleated as Grade 589/1 ½
Outras notas
Field of Use: For internal research use only. Products are not intended for diagnostic use or resale.
Informações legais
Whatman is a registered trademark of Cytiva
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