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Laboratories Sought for Two Round Robins Supporting Clean Room Standards

ASTM Committee E21 on Space Simulation and Applications of Space Technology is sponsoring a round robin to aid in establishing the accuracy and precision of E 2090, Standard Test Method for Size-Differentiated Counting of Particles and Fibers Released from Clean Room Wipers Using Optical and Scanning Electron Microscopy.

The standard was developed in 2000 by a task group of ASTM Subcommittee E21.05 on Contamination. “This test measures particles and fibers on wipers using vertical and scanning microscopy,” said committee chairman Robert G. Moss, principal engineer, Space Systems/Loral, Palo Alto, Calif. “Participants will be provided with a free copy of E 2090 and will be asked to measure and reprint particles and fibers in at least three and at most five set of wiper samples.” To participate, contact Moss at the phone or e-mail provided below.

Subcommittee E21.05 is again sponsoring a round robin on E 1731, Standard Test Method for Gravimetric Determination of Nonvolatile Residue from Cleanroom Gloves. The subcommittee developed the test method in 1995.

“Participants will be requested to test three or four different gloves for NVR using E 1731,” Moss said. “A free copy of E 1731 will be provided to all participants. The purpose of the round robin is to determine accuracy and precision of the NVR tests.”

Contact Robert G. Moss, Space Systems/Loral, Palo Alto, Calif. (phone: 650/852-6018). Committee E21 meets April 28-29 in Anaheim, Calif. For meeting or membership details, contact Nancy McAvey, ASTM Technical Committee manager (phone: 610/832-9736). //

Copyright 2002, ASTM