Cytiva Whatman™ Binder-Free Glass Microfiber Prefiters, Grade GF/D

Functions as a prefilter when used with GF/B microfiber filters. Whatman™ Binder-Free Glass Microfiber Prefilters, Grade GF/D provide efficient membrane protection, especially during liquid scintillation counting.

Catalog Number	Mfr. No.	Diameter (Metric)	Diameter (English)
09-874-40B	Cytiva 1823010	10 mm	0.3 in.
09-927-767	Cytiva 1823007	7 mm	0.27 in.
09-874-41	Cytiva 1823021	21 mm	0.82 in.
09-874-42A	Cytiva 1823024	24 mm	0.9 in.
09-874-44	Cytiva 1823025	25 mm	0.98 in.
09-874-47A	Cytiva 1823090	90 mm	3.5 in.
09-874-46B	Cytiva 1823042	42.5 mm	1.67 in.
09-874-48	Cytiva 1823047	47 mm	1.8 in.
09-874-46C	Cytiva 1823055	55 mm	2.1 in.
09-874-47	Cytiva 1823070	70 mm	2.7 in.
09-874-47B	Cytiva 1823110	110 mm	4.33 in.
09-874-47C	Cytiva 1823125	125 mm	4.92 in.
09-874-47H	Cytiva 1823142	142 mm	5.59 in.
09-874-47D	Cytiva 1823150	150 mm	5.9 in.
09-874-47E	Cytiva 1823257	257 mm	10.1 in.
09-924-543	Cytiva 1823035	35 mm	13.7 in.

Description

Functions as a prefilter when used with GF/B microfiber filters. Whatman™ Binder-Free Glass Microfiber Prefilters, Grade GF/D provide efficient membrane protection, especially during liquid scintillation counting.

Whatman glass microfiber filters without binder feature low resistance to fluid flow and high particle-loading capacity. These filters can be used at temperatures up to 500ºC. The fine capillary structure of glass fiber filters can absorb large quantities of water, enabling spot tests and liquid scintillation counting methods.

Glass microfiber filters are mainly used in applications such as air or water monitoring and can be used as pre-filters for membranes.

• Thick and offer high loading capacity 
• Function as a prefilter when used with GF/B.
• Fits most filter holders
• Nominal particle retention of 2.7µm
• Fast filtration speed

Specifications

• Autoclavable: Autoclavable
• Description: GE’s Whatman Grade GF/D fine membrane filters are thick and offer good loading capacity. GF/D can also function as a prefilter when used with GF/B, and it comes in many sizes to fit most filter holders.
• Material: Borosilicate Glass
• Flow Rate: 2.6 s/100mL/in²
• Shape: Circle
• Temperature (Metric) Max: 500°C
• Thickness (Metric): 675 μm
• Waterflow Rate: 681 mL/min

• Basis Weight: 121 g/m²
• Format: Circle
• Particle Retention: 2.7μm
• Grade: Grade GF/D
• Temperature (English) Max.: 932°F
• Thickness (English): 0.02 in.
• Type: Prefilter