TCVN 6614-1-4-2008 Common test methods for insulating and sheathing materials of electric cables and optical cables.Part 1-4: Methods for general application.Test at low temperature
2008TCVN 6614-1-4-2008 Common test methods for insulating and sheathing materials of electric cables and optical cables.Part 1-4: Methods for general application.Test at low temperature