PD IEC TS 62607-6-13:2020 PDF

1   Scope This part of IEC TS 62607 establishes a standardized method to determine the chemical key control characteristic

• oxygen functional group content

for powder consisting of graphene -based material like graphite oxide, graphene oxide, reduced graphene oxide and other types of functionalized graphene by

• Boehm titration method .

In this document, the measured functional groups are carboxyl groups (also in the form of their cyclic anhydrides), lactone groups, hydroxyl groups and reactive carbonyl groups. Oxygen functional groups that exhibit no reactivity such as epoxides cannot be measured. The oxygen functional group content is derived by the difference between NaHCO 3 , Na 2 CO 3 , NaOH and C 2 H 5 ONa consumption of dispersed graphene powders.

– The oxygen functional group content determined according to this document is listed as key control characteristic in the blank detail specification for