The following URL is an example link for the 'ink cartridge' product type (SET 114):
As a starting point, the following considerations could be made when researching cartridge filling volume:
Pseudo sql 'select attributeValue5 from products where productTypeId=144'
The values of the filling volume as shown in the screenshot are not the actual values of the product, but correspond to the attribute clusters that contain the product.
The corresponding conversion to 100ml can then be done accordingly.