A GSM (Grams per Square Meter) Template is used in the paper industry to measure the grammage of paper / paperboard sample.

Here’s how it typically works:

1. Place the sample you want to measure on a a flat surface or cutting mat.
2. Position the Template on the paper sample.
3. Use a paper cutter knife to cut along the 4 sides of the template.
4. Remove the cut paper sample.
5. Weigh the cut sample on a precision scale.
6. Calculate the GSM by multiplying the weight of the sample by an appropriate factor (depending upon the size).

The GSM template is a crucial tool for paper quality control and testing of paper / paperboard used in various applications.