ASTM F 850 : 1983 : R1988
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
31-12-1992
31-12-2010
CONTAINED IN VOL 10.05 1995 Determines whether ingot or section of gadolinium gallium garnet (GGG) is monocrystalline in structure and extent of density of dislocation and nature of other crystal imperfections. Suitable for GGG crystals with defect or dislocation densities, or both, between 1 and 100 cm to the minus 2. Limited to cylindrical crystals grown in a [111] direction.
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