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Estimado para ser entregado entre 3-5 días hábiles después del pago en productos disponibles.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Whatman ofrece dos tipos de filtros de microfibra de vidrio fabricados con 100% de vidrio de borosilicato químicamente inerte y totalmente libres de agentes ligantes. Estos filtros en profundidad combinan velocidad de flujo rápida con una gran capacidad de carga y la retención de partículas muy pequeñas; extendiéndose hasta el rango de la submicrónicas. Pueden ser empleados a temperaturas de hasta 500° C.
Son ideales para su uso en aplicaciones de filtración de gases calientes y para análisis de gravimetría de materiales volátiles cuando existe ignición. Tienen una fina estructura capilar y pueden absorber mayor cantidad de agua que un filtro de celulosa equivalente; haciéndolos apropiados para los ensayos in situ y recuento de centelleo de los líquidos. Estos filtros pueden hacerse totalmente transparentes para un posterior examen microscópico.
Grado 934-AH Whatman
La retención de partículas muy finas con este grado es mayor debido a su alta eficacia de retención, velocidad de flujo alta y alta capacidad de carga. Es un filtro de superficie lisa de microfibra de vidrio de borosilicato resistente a temperaturas de hasta 500° C.
Especificado en los protocolos normalizados 2540D para la determinación de sólidos totales en suspensión del agua, eliminación de la turbidez y filtración de cultivos bacterianos. Se utiliza en un amplio rango de aplicaciones de laboratorio.
Es recomendado para el control de contaminación en aguas, clarificación de cultivos celulares, recuento por centelleo de líquidos y control de la contaminación del aire.
Grado | Grado 934-AH |
Propiedades | Rápido, carga alta |
Retención | 1.5 μm |
Tiempo filtración | 47 s |
Velocidad flujo de aire | 3.7 s/100 mL/in2 |
Grosor | 435 μm |
Peso | 64 g/m2 |
Material | Fibra de vidrio borosilicato |
Formato | Círculos |
Presentación | 100 piezas |
Catálogo | Diámetro |
WHA-1827-021 | 21 mm |
WHA-1827-024 | 24 mm |
WHA-1827-032 | 32 mm |
WHA-1827-047 | 47 mm |
WHA-1827-055 | 55 mm |
WHA-1827-070 | 70 mm |
WHA-1827-082 | 82 mm |
WHA-1827-090 | 90 mm |
WHA-1827-110 | 110 mm |
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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