These reference presets for setting Subsurface Scatter values are based on the Blender Stack Exchange site and are identical to those found in the Poser Scatter node.

                                                        

I typically verify values using the CombineRGB node; even though these values are derived from linear calculations, the outcomes are consistent. It's important to remember that the value range for each color pixel is from 0 to 1, and using an RGB value above 1 will yield a white color. The following example is provided for demonstration purposes.