Quantitative filter papers, ashless grades, grade 589/2 and 589/2 ½, Whatman™

Whatman Grade 589/2 filters from Cytiva 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 cm² at a constant pressure of 5 cm water column.

Whatman quantitative filters from Cytiva's business are designed for gravimetric analysis. Grade 589/2 Whatman ashless filter paper can also be purchased as pre-pleated 589/2½ sheets.

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.

Catalog No:
WHAT10300103
WHAT10300109
WHAT10300102
WHAT10300108
WHAT10300120
WHAT10300107
WHAT10300114
WHAT10300106
WHAT10300112
WHAT10300145
WHAT10300111
WHAT10300143
WHAT10300110

Grade:
589/2
589/2
589/2
589/2
589/2
589/2
589/2
589/2
589/2
589/2 ½
589/2
589/2 ½
589/2

Weight:
85 g/m²
85 g/m²
85 g/m²
85 g/m²
85 g/m²
85 g/m²
85 g/m²
85 g/m²
85 g/m²
85 g/m²
85 g/m²
85 g/m²
85 g/m²

Thickness:
180 µm
180 µm
180 µm
180 µm
180 µm
180 µm
180 µm
180 µm
180 µm
180 µm
180 µm
180 µm
180 µm

Particle retention:
4 - 12 µm
4 - 12 µm
4 - 12 µm
4 - 12 µm
4 - 12 µm
4 - 12 µm
4 - 12 µm
4 - 12 µm
4 - 12 µm
4 - 12 µm
4 - 12 µm
4 - 12 µm
4 - 12 µm

Filtration speed:
70 s (Herzberg)
70 s (Herzberg)
70 s (Herzberg)
70 s (Herzberg)
70 s (Herzberg)
70 s (Herzberg)
70 s (Herzberg)
70 s (Herzberg)
70 s (Herzberg)
70 s (Herzberg)
70 s (Herzberg)
70 s (Herzberg)
70 s (Herzberg)

Ash content:
0,010%
0,010%
0,010%
0,010%
0,010%
0,010%
0,010%
0,010%
0,010%
0,010%
0,010%
0,010%
0,010%