ASTM F 651 : 1980
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Method for Particle Single-Point Calibration by the Median Method (Withdrawn 1988)
31-12-1988
31-12-2010
Describes instrument that counts particles suspended in fluid, within specified size range and random order. For use by skilled operators. Discontinued in 1988.
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