WHA10300143
Whatman® prepleated quantitative filter paper, ashless, Grade 589/2 1/2 white ribbon
circles, diam. 110 mm, pack of 100
Synonyme(s) :
Whatman filter, Whatman paper, White ribbon filter, Z695416, paper filter
About This Item
Produits recommandés
Matériaux
cellulose filters
circles
Conditionnement
pack of 100
Fabricant/nom de marque
Whatman 10300143
Whatman Article No. 28414122 (US reference)
Paramètres
70 sec/100 mL speed (Herzberg)
Diamètre
110 mm
Épaisseur
180 μm
Cendres
≤0.01%
Dimension de pores
4-12 μm (Particle retention)
Poids de base
85 g/m2
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Catégories apparentées
Description générale
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 589/2 1/2: 4-12 μm
′White Ribbon Filter′, prepleated ashless standard filter paper for medium fine precipitates (class 2b acc. to DIN 53 135) offering medium filtration speed. Applied in a variety of routine methods in quantitative analysis, e.g., determination of the sand content in foodstuffs; determination of the grade of flour; or analysis of aqueous suspensions in the paper 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 589/2 ½ : 4-12 μm (medium fast filter paper)
′White Ribbon Filter′, prepleated ashless standard filter paper for medium fine precipitates (class 2b acc. to DIN 53 135) offering medium filtration speed. Applied in a variety of routine methods in quantitative analysis, e.g., determination of the sand content in foodstuffs; determination of the grade of flour; or analysis of aqueous suspensions in the paper industry.
Caractéristiques et avantages
- High purity (< 0.01% ash)
- Retention of medium fine precipitates, such as grains of sand
- Herzberg filtration speed of 140 s*
- White ribbon filteR
Autres remarques
Informations légales
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