Whatman™ Grade 2 Qualitative Filter Papers

: Cytiva

: Cytiva

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.

Each lot is guaranteed to meet the ASTM E 2187-09 specifications
Simplifies testing process by removing lot suitability testing
Just condition and use

Slightly more retentive than Grade 1 with a corresponding increase in filtration time (i.e., slightly slower filtration speed). More absorbent than Grade 1.

In addition to general filtration in the 8 µm particle size range, the extra absorbency is utilized, for example, to hold soil nutrient in plant growth trials. Also used for monitoring specific contaminants in the atmosphere and in soil testing. Also available prepleated as Grade 2V.

Certifications: The paper meets both the conditioned (26.1 ± 0.5 g, SD <0.3 g) and dried (24.7 ± 0.5 g, SD <0.3 g) weight requirements. Tested according to the procedure detailed in ASTM E 2187-09, Sections 9.3.1 and 9.3.2.

Each lot is guaranteed to meet the ASTM E 2187-09 specifications
Simplifies testing process by removing lot suitability testing
Just condition and use

Slightly more retentive than Grade 1 with a corresponding increase in filtration time (i.e., slightly slower filtration speed). More absorbent than Grade 1.

Documents

Manual

Additional Product Details

Cytiva CyDye Licensing Statements
Cytiva General Licensing Statements

Product Literature

Catalog No:
28455-041
28455-063
28455-085
28455-110
28455-121
28455-142
89033-092
28455-164
28455-186
28455-222
82004-046

Thickness:
190 µm (typical)
190 µm (typical)
190 µm (typical)
190 µm (typical)
190 µm (typical)
190 µm (typical)
190 µm (typical)
190 µm (typical)
190 µm (typical)
190 µm (typical)
190 µm (typical)

Particle retention:
8 µm (Particle retention rating at 98% efficiency), in liquid max.
8 µm (Particle retention rating at 98% efficiency), in liquid max.
8 µm (Particle retention rating at 98% efficiency), in liquid max.
8 µm (Particle retention rating at 98% efficiency), in liquid max.
8 µm (Particle retention rating at 98% efficiency), in liquid max.
8 µm (Particle retention rating at 98% efficiency), in liquid max.
8 µm (Particle retention rating at 98% efficiency), in liquid max.
8 µm (Particle retention rating at 98% efficiency), in liquid max.
8 µm (Particle retention rating at 98% efficiency), in liquid max.
8 µm (Particle retention rating at 98% efficiency), in liquid max.
8 µm (Particle retention rating at 98% efficiency), in liquid max.

Filtration speed:
Approx. 240 s (Herzberg)
Approx. 240 s (Herzberg)
Approx. 240 s (Herzberg)
Approx. 240 s (Herzberg)
Approx. 240 s (Herzberg)
Approx. 240 s (Herzberg)
Approx. 240 s (Herzberg)
Approx. 240 s (Herzberg)
Approx. 240 s (Herzberg)
Approx. 240 s (Herzberg)
Approx. 240 s (Herzberg)

Ash content:
0.06%
0.06%
0.06%
0.06%
0.06%
0.06%
0.06%
0.06%
0.06%
0.06%
0.06%

Airflow rate:
21 s/100 ml/in²
21 s/100 ml/in²
21 s/100 ml/in²
21 s/100 ml/in²
21 s/100 ml/in²
21 s/100 ml/in²
21 s/100 ml/in²
21 s/100 ml/in²
21 s/100 ml/in²
21 s/100 ml/in²
21 s/100 ml/in²

Basis weight:
103 g/m²
103 g/m²
103 g/m²
103 g/m²
103 g/m²
103 g/m²
103 g/m²
103 g/m²
103 g/m²
103 g/m²
103 g/m²

Burst strength:
0.048 bar, wet burst; 1.103 bar, dry burst
0.048 bar, wet burst; 1.103 bar, dry burst
0.048 bar, wet burst; 1.103 bar, dry burst
0.048 bar, wet burst; 1.103 bar, dry burst
0.048 bar, wet burst; 1.103 bar, dry burst
0.048 bar, wet burst; 1.103 bar, dry burst
0.048 bar, wet burst; 1.103 bar, dry burst
0.048 bar, wet burst; 1.103 bar, dry burst
0.048 bar, wet burst; 1.103 bar, dry burst
0.048 bar, wet burst; 1.103 bar, dry burst
0.048 bar, wet burst; 1.103 bar, dry burst

Flow rate:
Medium flow
Medium flow
Medium flow
Medium flow
Medium flow
Medium flow
Medium flow
Medium flow
Medium flow
Medium flow
Medium flow

Tensile strength:
44.6 N/15 mm, Tensile M/D Dry
44.6 N/15 mm, Tensile M/D Dry
44.6 N/15 mm, Tensile M/D Dry
44.6 N/15 mm, Tensile M/D Dry
44.6 N/15 mm, Tensile M/D Dry
44.6 N/15 mm, Tensile M/D Dry
44.6 N/15 mm, Tensile M/D Dry
44.6 N/15 mm, Tensile M/D Dry
44.6 N/15 mm, Tensile M/D Dry
44.6 N/15 mm, Tensile M/D Dry
44.6 N/15 mm, Tensile M/D Dry

Product Family Options

Description
Ø
28455-041

Grade 2 Qualitative filter paper standard grade, circle
55 mm

Paquete de 100
Paquete de 100 - $649.69
$649.69
Paquete de 100
$649.69
: 1002-055

Product available on GSA Advantage®

Specifications
Cat. No.
28455-041
Thickness
190 µm (typical)
Particle retention
8 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration speed
Approx. 240 s (Herzberg)
Ash content
0.06%
Airflow rate
21 s/100 ml/in²
Basis weight
103 g/m²
Burst strength
0.048 bar, wet burst; 1.103 bar, dry burst
Flow rate
Medium flow
Tensile strength
44.6 N/15 mm, Tensile M/D Dry
Product available on GSA Advantage®
28455-063

Grade 2 Qualitative filter paper standard grade, circle
70 mm

Paquete de 100
Paquete de 100 - $712.40
$712.40
Paquete de 100
$712.40
: 1002-070

Specifications
Cat. No.
28455-063
Thickness
190 µm (typical)
Particle retention
8 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration speed
Approx. 240 s (Herzberg)
Ash content
0.06%
Airflow rate
21 s/100 ml/in²
Basis weight
103 g/m²
Burst strength
0.048 bar, wet burst; 1.103 bar, dry burst
Flow rate
Medium flow
Tensile strength
44.6 N/15 mm, Tensile M/D Dry
28455-085

Grade 2 Qualitative filter paper standard grade, circle
90 mm

Paquete de 100
Paquete de 100 - $842.92
$842.92
Paquete de 100
$842.92
: 1002-090

Product available on GSA Advantage®

Specifications
Cat. No.
28455-085
Thickness
190 µm (typical)
Particle retention
8 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration speed
Approx. 240 s (Herzberg)
Ash content
0.06%
Airflow rate
21 s/100 ml/in²
Basis weight
103 g/m²
Burst strength
0.048 bar, wet burst; 1.103 bar, dry burst
Flow rate
Medium flow
Tensile strength
44.6 N/15 mm, Tensile M/D Dry
Product available on GSA Advantage®
28455-110

Grade 2 Qualitative filter paper standard grade, circle
110 mm

Paquete de 100
Paquete de 100 - $842.56
$842.56
Paquete de 100
$842.56
: 1002-110

Product available on GSA Advantage®

Specifications
Cat. No.
28455-110
Thickness
190 µm (typical)
Particle retention
8 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration speed
Approx. 240 s (Herzberg)
Ash content
0.06%
Airflow rate
21 s/100 ml/in²
Basis weight
103 g/m²
Burst strength
0.048 bar, wet burst; 1.103 bar, dry burst
Flow rate
Medium flow
Tensile strength
44.6 N/15 mm, Tensile M/D Dry
Product available on GSA Advantage®
28455-121

Grade 2 Qualitative filter paper standard grade, circle
125 mm

Paquete de 100
Paquete de 100 - $1,014.63
$1,014.63
Paquete de 100
$1,014.63
: 1002-125

Product available on GSA Advantage®

Specifications
Cat. No.
28455-121
Thickness
190 µm (typical)
Particle retention
8 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration speed
Approx. 240 s (Herzberg)
Ash content
0.06%
Airflow rate
21 s/100 ml/in²
Basis weight
103 g/m²
Burst strength
0.048 bar, wet burst; 1.103 bar, dry burst
Flow rate
Medium flow
Tensile strength
44.6 N/15 mm, Tensile M/D Dry
Product available on GSA Advantage®
28455-142

Grade 2 Qualitative filter paper standard grade, circle
150 mm

Paquete de 100
Paquete de 100 - $1,331.76
$1,331.76
Paquete de 100
$1,331.76
: 1002-150

Product available on GSA Advantage®

Specifications
Cat. No.
28455-142
Thickness
190 µm (typical)
Particle retention
8 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration speed
Approx. 240 s (Herzberg)
Ash content
0.06%
Airflow rate
21 s/100 ml/in²
Basis weight
103 g/m²
Burst strength
0.048 bar, wet burst; 1.103 bar, dry burst
Flow rate
Medium flow
Tensile strength
44.6 N/15 mm, Tensile M/D Dry
Product available on GSA Advantage®
89033-092

Grade 2 Qualitative filter paper standard grade, circle, certified for IS testing
150 mm

Paquete de 100
Paquete de 100 - $1,510.68
$1,510.68
Paquete de 100
$1,510.68
: 1002-147

Product available on GSA Advantage®

Specifications
Cat. No.
89033-092
Thickness
190 µm (typical)
Particle retention
8 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration speed
Approx. 240 s (Herzberg)
Ash content
0.06%
Airflow rate
21 s/100 ml/in²
Basis weight
103 g/m²
Burst strength
0.048 bar, wet burst; 1.103 bar, dry burst
Flow rate
Medium flow
Tensile strength
44.6 N/15 mm, Tensile M/D Dry
Product available on GSA Advantage®
28455-164

Grade 2 Qualitative filter paper standard grade, circle
185 mm

Paquete de 100
Paquete de 100 - $1,941.05
$1,941.05
Paquete de 100
$1,941.05
: 1002-185

Specifications
Cat. No.
28455-164
Thickness
190 µm (typical)
Particle retention
8 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration speed
Approx. 240 s (Herzberg)
Ash content
0.06%
Airflow rate
21 s/100 ml/in²
Basis weight
103 g/m²
Burst strength
0.048 bar, wet burst; 1.103 bar, dry burst
Flow rate
Medium flow
Tensile strength
44.6 N/15 mm, Tensile M/D Dry
28455-186

Grade 2 Qualitative filter paper standard grade, circle
240 mm

Paquete de 100
Paquete de 100 - $3,165.33
$3,165.33
Paquete de 100
$3,165.33
: 1002-240

Specifications
Cat. No.
28455-186
Thickness
190 µm (typical)
Particle retention
8 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration speed
Approx. 240 s (Herzberg)
Ash content
0.06%
Airflow rate
21 s/100 ml/in²
Basis weight
103 g/m²
Burst strength
0.048 bar, wet burst; 1.103 bar, dry burst
Flow rate
Medium flow
Tensile strength
44.6 N/15 mm, Tensile M/D Dry
28455-222

Grade 2 Qualitative filter paper standard grade, circle
320 mm

Paquete de 100
Paquete de 100 - $6,492.16
$6,492.16
Paquete de 100
$6,492.16
: 1002-320

Specifications
Cat. No.
28455-222
Thickness
190 µm (typical)
Particle retention
8 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration speed
Approx. 240 s (Herzberg)
Ash content
0.06%
Airflow rate
21 s/100 ml/in²
Basis weight
103 g/m²
Burst strength
0.048 bar, wet burst; 1.103 bar, dry burst
Flow rate
Medium flow
Tensile strength
44.6 N/15 mm, Tensile M/D Dry
82004-046

Grade 2 Qualitative filter paper standard grade, sheet
580×680 mm

Paquete de 100
Paquete de 100 - $18,666.75
$18,666.75
Paquete de 100
$18,666.75
: 1002-931

Specifications
Cat. No.
82004-046
Thickness
190 µm (typical)
Particle retention
8 µm (Particle retention rating at 98% efficiency), in liquid max.
Filtration speed
Approx. 240 s (Herzberg)
Ash content
0.06%
Airflow rate
21 s/100 ml/in²
Basis weight
103 g/m²
Burst strength
0.048 bar, wet burst; 1.103 bar, dry burst
Flow rate
Medium flow
Tensile strength
44.6 N/15 mm, Tensile M/D Dry