The electrochemical equivalent of a material is dependent upon

According to Faraday's first law of electrolysis, the mass $m$ of a substance deposited at an electrode is given by $m = ZQ$, where $Q$ is the charge and $Z$ is the electrochemical equivalent.

The electrochemical equivalent $Z$ is defined as the mass of the substance deposited by one coulomb of charge. It is given by the relation $Z = \dfrac{E}{F}$, where $E$ is the equivalent weight of the substance and $F$ is Faraday's constant.

Since the equivalent weight depends on the atomic weight and valency of the substance, the electrochemical equivalent is a characteristic property of the material.

Therefore, it depends only on the nature of the material and is independent of the current, total charge, or the quantity of the material present in the electrolyte.