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VWR玻璃纤维滤纸28297-976/1820-110/1827-055/9907-042
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VWR® Glass Fiber Filters

Binder-free VWR® glass fiber filters feature fast flow rates， high-loading capacity， wide thermal tolerance， and excellent precipitate retention. Available in three grades: Grade 691 is an ideal filter for radioimmunoassay of weak beta emitters by scintillation counting， and for filtration of precipitated proteins， cells， and cell debris. Also used for gravimetric determination of airborne particulates. Grade 693 is recommended for use in dissolved and suspended solids testing in sanitary water analysis procedures. Grade 696 is used for monitoring specific pollutants (e.g.， Hg in water)， and in marine chemistry to filter particulate components in seawater. Also used in RIA procedures and for harvesting lymphocytes during incorporation trials.

Flow Rate

Fast
Grade691693691696
Particle Retention1.5 μm1.1 μm1.5 μm1.2 μm
PorosityFine

货号

Grade
DiameterVWR Catalog NumberUnit
6912.1 cm28297-976Pack of 100
6912.4 cm28297-978Pack of 100
6914.2 cm28297-982Pack of 100
6914.7 cm28333-129Pack of 100
6915.5 cm28297-984Pack of 100
6919.0 cm28297-289Pack of 100
69111.0 cm28297-974Pack of 100
69112.5 cm28333-127Pack of 100
69115.0 cm28333-125Pack of 100
6932.4 cm28297-500Pack of 100
6934.2 cm28297-504Pack of 100
6935.5 cm28297-506Pack of 100
6937.0 cm28297-508Pack of 100
6939.0 cm28297-510Pack of 100
6962.4 cm28333-143Pack of 100
6964.7 cm28333-139Pack of 100
6965.5 cm28333-137Pack of 100
6969.0 cm28333-135Pack of 100
69611.0 cm28333-133Pack of 100
69612.5 cm28333-131Pack of 100

Grade GF/A Glass Microfiber Filters， Whatman®

Used in biochemistry for the filtration of precipitated proteins， cells， and cell debris. An ideal filter for radio-immunoassay of weak beta emitters by scintillation counting. A standard for gravimetric determination of airborne particulates. Binder-free.

Flow Rate

Fast
Particle Retention1.6 μm
PorosityFine
货号

Size
Supplier No.VWR Catalog NumberUnit
11 dia. cm1820-11028497-222Pack of 100
12.5 dia. cm1820-12528497-244Pack of 100
15 dia. cm1820-15028497-255Pack of 100
2.1 dia. cm1820-02128497-084Pack of 100
2.4 dia. cm1820-02428497-109Pack of 100
2.5 dia. cm1820-02528497-110Pack of 100
3.7 dia. cm1820-03728497-120Pack of 100
4.25 dia. cm1820-04228497-142Pack of 100
4.7 dia. cm1820-04728497-153Pack of 100
46 x 57 cm1820-91583009-312Pack of 25
5.5 dia. cm1820-05528497-164Pack of 100
7 dia. cm1820-07028497-186Pack of 100
9 dia. cm1820-09028497-200Pack of 100

Grade 934-AH™ Glass Microfiber Filters， Whatman®

Binder-free， high-purity borosilicate glass microfiber filters are used in the determination of total suspended solids， removal of turbidity， and filtration of bacterial cultures as well as in a wide range of water monitoring applications. High loading capacity allows processing of very turbid samples. Provide superior fine particle retention (1.5μm) at high flow rates. Withstand temperatures up to 550°C (1022°F).

Ordering Information: For grade 934-AH glass microfiber filters in a RTU (ready-to-use) format， see 97040-974 series.

Basis Weight

64 g/m2
Filtration speed47 sec./100 mL (Herzberg)
Particle Retention in Liquid1.5 μm (Particle retention rating at 98% efficiency)
Typical Thickness435 μm
Wet Burst17 in. (water)

货号

Size
Supplier No.VWR Catalog NumberUnit
11 dia. cm1827-11028496-955Pack of 100
12.5 dia. cm1827-12528496-966Pack of 100
18.5 dia. cm1827-18528496-968Pack of 100
2.1 dia. cm1827-02128496-751Pack of 100
2.4 dia. cm1827-02428496-773Pack of 100
2.5 dia. cm1827-02528297-418Pack of 100
24 dia. cm1827-24028496-970Pack of 100
3.2 dia. cm1827-03228496-795Pack of 100
3.5 dia. cm1827-03528496-809Pack of 100
3.7 dia. cm1827-03728496-853Pack of 100
30.5 x 38.1 cm1827-88928497-991Pack of 100
3 dia. cm1827-03028496-785Pack of 100
4.25 dia. cm1827-04228496-875Pack of 100
4.7 dia. cm1827-04728496-886Pack of 100
5.5 dia. cm1827-05528496-897Pack of 100
7 dia. cm1827-07028496-911Pack of 100
9 dia. cm1827-09028496-933Pack of 100

Grade 934-AH™ RTU Glass Microfiber Filters， Whatman®

Ready-to-use (RTU) filters are supplied pre-washed and weighed according to standard method 2540D， eliminating the need for pre-treating the product prior to use. Each RTU filter is packaged within an aluminum pan with the filter weight clearly printed on a heat-resistant label.

Binder-free， high-purity borosilicate glass microfiber filters are used in the determination of total suspended solids， removal of turbidity， and filtration of bacterial cultures as well as in a wide range of water monitoring applications. High loading capacity allows processing of very turbid samples. Provide superior fine particle retention (1.5μm) at high flow rates. Withstand temperatures up to 550°C (1022°F).

Basis Weight

64 g/m2
Filtration speed47 sec./100 mL (Herzberg)
Particle Retention in Liquid1.5 μm (Particle retention rating at 98%)
Typical Thickness435 μm
Wet Burst17 in. (water)

货号

Diameter
Supplier No.VWR Catalog NumberUnit
4.3 cm97040-974Case of 1200
Pack of 100
4.7 cm9907-04797040-976Case of 1200
Pack of 100
5.5 cm9907-05597040-978Case of 1200
Pack of 100

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tel：010-56420050、88482632

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mail：vivian.li**********

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