A-A-53856 Base Document:1989
Withdrawn
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Specifies a lightweight, hand-held, monocular refractometer used to measure specific gravity of human urine, serum protein concentration, and refraction.
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