SDG quantification methodologies
For quantification of the Sustainable Goals associated to the project, the project developers have to either use Life Cycle Assessment or the Global Indicator Framework of the UN.
LCA based SDGs
If the project detains a complet Life Cycle Assessment of its process or products, that demonstrate a positive impact, on other criteria than GWP.
Global indicator Framework
The UN while developing the SDG developed a refined list of measurable goals. Riverse rely on this list to chose relevant indicators, every can consult it here.
As a project developer, to demonstrate the claim of a specific SDG (1 to 17), you will need to select among the global indicators the relevant ones that you can prove.