This standard specifies the test method for the surface hardness of polarizing films used in flat panel displays. This standard is applicable to the test of the surface hardness of the polarizing film of the flat panel display.
GB/T 31378-2015 Referenced Document
ISO 15184 Paints and varnishes — Determination of film hardness by pencil test*, 2020-01-08 Update
GB/T 31378-2015 history
2015GB/T 31378-2015 Test method for surface hardness of flat panel display (FPD) polarizing film
GB/T 31378-2015 Test method for surface hardness of flat panel display (FPD) polarizing film was changed to GOST R ISO 13485-2004 Medical devices. Quality management systems. System requirements for requlatory purposes.