yourwork, so much depends on so little. kAi Whatman

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In your work, so much depends on so little. The success of an experiment depends on many factors, the most important being the purity of your filtrate. Whatman microfiltration devices set a new standard for purity, reliability and excellence. They ensure a purer filtrate because absolutely no sealants, adhesives or releasing agents are ever used. In addition, a variety of filter media and configurations are available to meet the diverse needs

of your laboratory. And, like all Whatman products, Whatman microfiltration devices are 100% guaranteed. No wonder more scientists throughout the world trust their experiments to Whatman filters. Whatman microfiltration devices. They may be small, but think how much depends on them. For more information in the US, call toll-free, 1-800-922-0361, or contact your local Whatman distributor.

The advantages filter through.

Whatman ® CIRCLE 150 ON READER SERVICE CARD