ASTM-F661 › Complete Document History
Practice for Particle Count and Size Distribution Measurement in Batch Samples for Filter Evaluation Using an Optical Particle Counter (Withdrawn 2001)


Obsolete Revision Information:
   1992 EDITION - WITHDRAWN - Jan. 15, 1992
   1986 EDITION - Particle Count and Size Distribution Measurement in Batch Sa - June 27, 1986