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IEST: Institute of Environmental Sciences and Technology

IEST, the Institute of Environmental Sciences and Technology, is a nonprofit organization that develops and publishes standards in a variety of fields, known primarily for its standards regarding contamination control, reliability testing and nanotechnology. Headquartered near Chicago, United States, IEST has done considerable work revising standards used by United States federal agencies and its military. IEST is the secretariat of ISO/TC 209 (International Organization for Standardization/Technical Committee), as well as serving as the administrator for the U.S. TAG (United States Technical Advisory Group) to ISO/TC 209. Standards from IEST are available both individually, directly through the ANSI webstore, and as part of a Standards Subscription. If you or your organization are interested in easy, managed, online access to standards that can be shared, a Standards Subscription may be what you need - please contact us at: StandardsSubscriptions@ansi.org or 1-212-642-4980 or Request Proposal Price.

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IEST-RP-CC002.4

Unidirectional-Flow, Clean-Air Devices

This Recommended Practice (RP) covers definitions, procedures for evaluating performance, and major require-ments of unidirectional-flow, clean-air devices. The RP may be used to define a basis of agreement between cus-tomer and supplier in the specification, procurement, and certification testing of unidirectional-flow, clean-air devices with self-contained motor-blower(s) and powered terminal units with replaceable filters. This document also presents recommendations for recertification of devices owned by the customer, under direction of the customer.





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