In simple test-systems, we were able to use the volume-correction to identify the size of the excluded volume and correct the RDFs to provide converged scattering signals across the entire qrange. However, both the volume-correction and the correction provided by Perera and coworkers are reliant on parameters that have to be fitted or estimated, whereas the van der Vegt correction is parameter-free. We have used the isothermal compressibility of water to test the corrections against experimental results, and found the volume-and van der Vegt correction to recover the experimental isothermal compressibility with the best accuracy.