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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-CC034.4

HEPA and ULPA Filter Leak Tests

This Recommended Practice (RP) covers definitions, equipment, and procedures for leak testing high-efficiency particulate air (HEPA) filters and ultralow-penetration air (ULPA) filters in the factory as they are produced, at the job site before they are installed, and after they are installed in cleanrooms and in unidirectional-flow, clean-air de-vices. When used in conjunction with other RPs, including IEST-RP-CC001, IEST-RP-CC002, IEST-RP-CC006, IEST-RP-CC007, IEST-RP-CC021, IEST-RP-CC028, and IEST-RP-CC036, this RP may be used to define the basis of an agreement between the customer and supplier in the specification and procurement of HEPA and ULPA filters, and in the testing of these filters in unidirectional-flow, clean-air devices and cleanrooms. This RP also includes procedures for measuring the uniformity of the aerosol challenge approaching the filter under test. Although the scanning methods in the factory and in situ (in the field) appear similar, they are not identical, mainly due to increased variability for in-situ testing. In this revision of the RP, the recommended procedures for factory and in-situ testing are separated for ease of use. In factory and in-situ testing, if a leak is detected while scanning a filter, it is recommended that the magnitude of the leak be quantified with the scanning probe stationary over the detected leak.




IEST-RP-CC005.4

Gloves and Finger Cots Used in Cleanrooms and Other Controlled Environments Arlington Place

This Recommended Practice (RP) describes procedures for testing and evaluating gloves and finger cots used in cleanrooms and other controlled environments. Tests are provided for determining cleanliness, physical and chemical integrity, and other relevant properties. Guidelines are also provided to assist users in the proper selection of gloves or finger cots.




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.


IEST-RP-CC005.4

Gloves and Finger Cots Used in Cleanrooms and Other Controlled Environments Arlington Place

This Recommended Practice (RP) describes procedures for testing and evaluating gloves and finger cots used in cleanrooms and other controlled environments. Tests are provided for determining cleanliness, physical and chemical integrity, and other relevant properties. Guidelines are also provided to assist users in the proper selection of gloves or finger cots.



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As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

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