Filtry ilościowe bezpopiołowe Grade 589/2

Filtry Grade 589/2 firmy są stosowane w rutynowych analizach ilościowych, w tym w analizie zawiesiny wodnej w analizie mąki i papieru, oraz w oznaczaniu zawartości piasku.
Whatman Grade 589/2 filters are used in routine quantitative analyses, including analysis of aqueous suspension in paper, flour analysis, and sand content quantification.

• High purity (< 0.01% ash)
• Retention of medium fine precipitates, such as grains of sand
• Herzberg filtration speed of 140 s*
• ‘White ribbon filter’

*The time taken to filter 100 ml water (20°C) through a filter area of 10 cm˛ at a constant pressure of 5 cm water column

Whatman quantitative filters are designed for gravimetric analysis. Grade 589/2 Whatman ashless filter paper can also be purchased as pre-pleated 589/2 ˝ sheets.

General filtration with quantitative papers
Grade 589/2 ashless filter paper can be used when medium fine precipitates are being collected and papers must be ashed to support analysis. Grade 589/2 is suitable for a variety of routine quantitative analysis methods, such as determination of the sand content in foodstuffs, flour analysis, and aqueous suspension analysis in the paper industry.
Grade Grade 589/2
Type Ashless 
Typical Thickness 180 µm
Basis Weight 85 g/m2
Filtration Time to Herzberg 140 s
Filtration Speed (Herzberg) 70 s
Ash Content 0.01% 
Material High-quality cotton linters 
Alpha Cellulose Content Min. 98
Ribbon Filter Color White 
Application Designed for gravimetric analysis and the preparation of samples for instrumental analysis. For medium fine precipitates 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. 
Product Product Name Grade Dimensions
10300102 Grade 589/2 Medium Fine Precipitate Filter; 12.7 mm circle (1000 pcs) Grade 589/2 12.7 mm
10300103 Grade 589/2 Medium Fine Precipitate Filter; 40.5 mm circle (100 pcs) Grade 589/2 40.5 mm
10300106 Grade 589/2 Medium Fine Precipitate Filter; 50 mm circle (100 pcs) Grade 589/2 50 mm
10300107 Grade 589/2 Medium Fine Precipitate Filter; 55 mm circle (100 pcs) Grade 589/2 55 mm
10300108 Grade 589/2 Medium Fine Precipitate Filter; 70 mm circle (100 pcs) Grade 589/2 70 mm
10300109 Grade 589/2 Medium Fine Precipitate Filter; 90 mm circle (100 pcs) Grade 589/2 90 mm
10300110 Grade 589/2 Medium Fine Precipitate Filter; 110 mm circle (100 pcs) Grade 589/2 110 mm
10300111 Grade 589/2 Medium Fine Precipitate Filter; 125 mm circle (100 pcs) Grade 589/2 125 mm
10300112 Grade 589/2 Medium Fine Precipitate Filter; 150 mm circle (100 pcs) Grade 589/2 150 mm
10300114 Grade 589/2 Medium Fine Precipitate Filter; 185 mm circle (100 pcs) Grade 589/2 185 mm
10300120 Grade 589/2 Medium Fine Precipitate Filter; 240 mm circle (100 pcs) Grade 589/2 240 mm
10300143 Grade 589/2 Medium Fine Precipitate Filter; 110 mm 1/2 folded (100 pcs) Grade 589/2 1/2 110 mm
10300145 Grade 589/2 1/2 Medium Fine Precipitate Filter; 150 mm folded (100 pcs) Grade 589/2 1/2 150 mm