Yes, If you took the standard deduction in 2018 your refund should not be taxable in 2019. 

After you enter your refund in TurboTax you will see a 'State and Local Tax Refund Summary' screen. Select 'Done'.

You will then see a screen titled 'Let's See if Your 2018 State Refund Is Taxable'. Select 'I took the standard deduction in 2018'.

You should then see a screen that says; 'Good News! Your 2018 State Refund Is Not Taxable'.

 [Edited 01/21/2020|7:39 PST]

Thank You for your helpful response.  I realized that the previous year's refund will not be counted as income only when I saw the year to year comparison  I think the screen where the refund amount is entered should indicate clearly the conditions under which it would be counted as income.