Papel Filtro Qualitativo Gr 1 - 90 Mm - 100 Unid - Whatman
Código: 16922
Whatman® qualitative filter paper, Grade 1
circles, diam. 90 mm, pack of 100
Sinônimo(s):
Whatman filter, Whatman paper, paper filter, Z240079
material
cellulose filters
circles
embalagem
pack of 100
manufacturer/tradename
Whatman 1001-090
Whatman Article No. 28413914 (US reference)
parâmetro
0.25 psi wet burst
150 sec/100 mL speed (Herzberg)
diâmetro
90 mm
espessura
180 μm
cinzas
≤0.06%
tamanho de poro
11 μm (Particle retention)
peso base
87 g/m2
Descrição geral
These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
Grade 1: 11 μm (medium flow filter paper)
The most widely used filter paper for routine applications with medium retention and flow rate. Extended range of sizes includes 10 to 500 mm diameter circles and 460 x 570 mm sheets.
This grade covers a wide range of laboratory applications and is frequently used for clarifying liquids. Traditionally the grade is used in qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate.
In agriculture, it is used for soil analysis and seed testing procedures. In the food industry, Grade 1 is used for numerous routine techniques to separate solid foodstuffs from associated liquid or extracting liquid and is widely used in education for teaching simple qualitative analytical separations.
In air pollution monitoring, using circles or rolls, atmospheric dust is collected from airflow and the stain-intensity measured photometrically. For gas detection, the paper is impregnated with a chromogenic reagent and color formation quantified by optical reflectance.
Grade 1: 11 μm (medium flow filter paper)
The most widely used filter paper for routine applications with medium retention and flow rate. Extended range of sizes includes 10 to 500 mm diameter circles and 460 x 570 mm sheets.
This grade covers a wide range of laboratory applications and is frequently used for clarifying liquids. Traditionally the grade is used in qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate.
In agriculture, it is used for soil analysis and seed testing procedures. In the food industry, Grade 1 is used for numerous routine techniques to separate solid foodstuffs from associated liquid or extracting liquid and is widely used in education for teaching simple qualitative analytical separations.
In air pollution monitoring, using circles or rolls, atmospheric dust is collected from airflow and the stain-intensity measured photometrically. For gas detection, the paper is impregnated with a chromogenic reagent and color formation quantified by optical reflectance.
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
