The general purpose hardened ashless filter paper with medium retention and flow rate. Extremely pure and strong with a hard surface. High chemical resistance to strong acid and alkali. Frequently used in the gravimetric analysis of metals in acid / alkali solutions and in collecting hydroxides after precipitation by strong alkalis.
Description:
medium
Particle retention in liquid:
8 µm
Filtration speed Herzberg:
200 s
Ash content:
< 0.006 %
Typical thickness:
160 µm
Basis weight:
88 g / m2
Filter type:
filter circle
Filtration time:
200.00 [s]
Type
Höhe mm
Order No.
PU
Manuf. Prod. No.
Grade 540
21.00
5428661
100
-
1540-321
Grade 540
24.00
5428662
100
-
1540-324
Grade 540
42.50
5428650
100
-
1540-042
Grade 540
55.00
5428651
100
-
1540-055
Grade 540
90.00
5428653
100
-
1540-090
Grade 540
110.00
5428654
100
-
1540-110
Grade 540
125.00
5428655
100
-
1540-125
Grade 540
150.00
5428656
100
-
1540-150
Grade 540
185.00
5428657
100
-
1540-185
Grade 540
240.00
5428658
100
-
1540-240
Grade 540
320.00
5428660
1
-
1540-320
Particle Retention Rating at 98 % efficiency.
Ash is determined by ignition of the cellulose filter at 900 °C in air.