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IEC TS 62607-6-1:2020 establishes a standardized method to determine the electrical key control characteristic
. volume resistivity
for powder consisting of graphene-based material like flakes of graphene, few layer graphene and/or reduced graphene oxide after preparation of a sample in pellet form by
. four probe method
using powder resistivity measurement system.
The volume resistivity is a measure of the quality of powder-type graphene products in terms of electrical property and reflects the density-dependency shown in a pellet of powder-type graphene.
The volume conductivity can directly be derived from the volume resistivity.
Typical application areas are industries that use powder-type graphene products for graphene manufacture, potential developers, and users who produce graphene-based products. As the volume resistivity measured according to this document requires the preparation of a sample in the form of a pellet, this document describes in detail
. an apparatus to prepare consistently a test sample, the pellet,
. the preparation of the pellet starting from powder-type graphene,
. the measurement procedure to measure the volume resistivity (or volume conductivity) of the pellet, and
. the data analysis, the interpretation and reporting of the results.