Well the first step is to work out which version of Standard mount lenses you have - whether the lens mount needs to rotate in the camera mount or not. Schneider made both types.
Early Standard mount lenses will have the focus ring and scale solidly connected to the outer cylinder of the mount, with an internal focussing group that is held in position in the camera mount by a protruding tab. So the entire outer part of the lens mount needs to rotate inside the camera mount in order to focus.
If you have that kind of lens, you need an adapter that has the protruding tab and allows the lens to rotate, like this:
Les Bosher and others also used to make them, they're a bit pricy due to the necessary complexity. (Be aware that these sometimes don't work on modern digital PL cameras because the protruding back fouls on interior baffles.)
If you have newer Standard mount lenses where the focus ring rotates independently of the mount (ie you can hold the mount and turn the focus ring) then any adapter that clamps onto the mount will work. This type with an included snap ring is quite reliable, and works for Bayonet mount lenses also:
The Chinese one you linked to is certainly affordable, but as always, you get what you pay for. In my experience many cheap ones are out of tolerance somewhere, occasionally so much so that they don't work properly. The back-focus is rarely exact, the materials are often substandard, and you may need to remove some burrs. But sometimes they're OK. As a technician I also find the grub screw attachment crude and potentially damaging to the lens, but I'm possibly being a bit precious.
None of these options allow you to leave the adapter in the camera mount, you always need to remove the lens to take off the adapter. But the more expensive versions can be quickly swapped over without damaging the lens, and are more likely to be correctly machined for back-focus.