You can create new tables of pre-defined types in the New Data Table dialog. You should take care to specify the units of each data item correctly.
Click New to create a new table. The New Table dialog is displayed.
Select the table Type from the predefined list. This determines the data columns that you see in the bottom section.
Enter the table Name, possibly including the table number or reference in the standard that you are defining.
Set the type of interpolation between the control values as Linear or Step Function.
The table type defines the type of data that each column contains as well as the header text so the only data you can change in a new table definition is the units of the columns.
To change the Units, simply select the required units from the drop-down list in each row of the table.
Click OK to save the table.