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GB/T 614-2021 English PDF (GBT614-2021)

GB/T 614-2021 English PDF (GBT614-2021)

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GB/T 614-2021: Chemical reagent -- General method for the determination of refractive index
This document specifies the general method for measuring the refractive index of liquid organic reagents by the Abbe refractometer method or the automatic digital display refractometer method. This document is suitable for the determination of light-colored and transparent liquid organic reagents with a refractive index ranging from 1.3000 to 1.7000. The automatic digital display refractometer method in this document is also suitable for the determination of dark, translucent and opaque liquid organic reagents.

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