Which of the following is NOT a property of Grassman's Law?

Grassmann's Law describes how the perception of color mixing works, particularly in relation to the additive color model. This law includes several properties that define how colors interact and combine. The properties recognized in Grassmann's Law include the scalar property, which suggests that the impact of a color mix can be adjusted by the intensity or amount of the colors used; the additive property, which states that mixing colors can produce new colors through addition; and the associative property, indicating that the order in which colors are mixed does not affect the overall outcome of the color perceived.

The dissociative property, on the other hand, does not pertain to Grassmann's Law. Dissociation in a color context typically refers to the ability to separate colors from each other, which conflicts with the principles of color mixing that are central to the law. Hence, it does not belong to the foundational characteristics outlined by Grassmann's Law, making it the exception in this context.