How to automatically set the drawing to load acadiso.lin linetype?

Worked on: AutoCAD 2019 
Date: 26 March 2020

Problem

Trying to load linestyles, in the layer dialog box for a metric drawing, but the imerpial linetype file is set as a deafult (acad.lin). How can I change this so the metric one (acadiso.lin) is the default  linetype?

Solution

Set MEASUREMENT and MEASUREINIT to 1

Screen Shots

Layer linetype default set to imperial – acad.lin

Layer linetype default set to metric- acadiso.lin

About System Variables Uses

Controls whether the current drawing uses imperial or metric hatch pattern and linetype files.
Initial value: 0 (imperial) or 1 (metric)

0 =  Imperial; uses the hatch pattern file and linetype file designated by the ANSIHatch and ANSILinetype registry settings

1 =  Metric; uses the hatch pattern file and linetype file designated by the ISOHatch and ISOLinetype registry settings

MEASUREINIT (System Variable)
Controls whether a drawing you start from scratch uses imperial or metric default settings.
Initial value: Varies by country/region
Specifically, MEASUREINIT controls which hatch pattern and linetype files are used. The Drawing1.dwg that opens when you start the program is a drawing that is started from scratch.

0 =  Imperial; uses the hatch pattern file and linetype file designated by the ANSIHatch and ANSILinetype registry settings
1 =  Metric; uses the hatch pattern file and linetype file designated by the ISOHatch and ISOLinetype registry settings