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Whatman Membranes WCA
C7-67
Cellulose acetate membrane filters exhibit very low protein binding capacity. They are hydrophilic making them suitable for aqueous and
alcoholic media
Pack 100
Code
Description
Pore Size
Diameter
Pack
FIL3046
White/Plain
0.45µm
47 mm
100
Whatman Membranes WCN, Plain
C7-67
Higher strength and flexibility
Most membranes are inherently brittle and difficult to handle; it is not uncommon for filters to be damaged during loading into holders or while in use. Whatman cellulose nitrate membrane
filters have a noticeably improved flexibility and are made to tolerate abuse during handling, loading and autoclaving without sacrificing integrity. These membranes are among the
strongest of their type available, as measured and compared by burst pressure tests.
Low extractable levels
The level of extractables in membrane filters has become more important with advances in filtration or adsorption techniques. In particular, pharmaceutical, immunological and biomedical
tissue culture and trace analysis applications can be adversely affected by high extractable levels. Whatman cellulose nitrate membrane filters have a low level of extractables, generally
below that of other membranes of a similar type.
Code
Pore Size, µm
Diam. mm
Alt Ref
Pack
FIL3060
0.45
13
7184-001
100
FIL3398
0.2
13
7182-001
100
FIL3050
0.1
25
7181-002
100
FIL3054
0.2
25
7182-002
100
FIL3064
0.45
25
7184-002
100
FIL3088
0.8
25
7188-002
100
FIL3092
1
25
7190-002
100
FIL3096
5
25
7195-002
100
FIL3052
0.1
47
7181-004
100
FIL3056
0.2
47
7182-004
100
FIL3068
0.45
47
7184-004
100
FIL3086
0.65
47
7186-004
100
FIL3090
0.8
47
7188-004
100
FIL3094
1
47
7190-004
100
FIL3098
5
47
7195-004
100
FIL3082
0.45
90
7184-009
25
FIL3400
0.2
90
7182-009
25
FIL
TRA
TION, FIL
TER MEMBRANES
FILTRATION, FILTER MEMBRANES
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