$\textbf{Proposition}$ Let $(X,\mathcal{U})$ be a uniform space. Then the following are equivalent.
$(X,\mathcal{U})$ is uniformly normal.
If $C_{1},C_{2}\subseteq X$ are disjoint closed sets, then there is a uniformly continuous map $f:X\rightarrow[0,1]$ with $f|_{C_{1}}=0$ and $f|_{C_{2}}=1$.
$X$ is normal and every continuous map $f:X\rightarrow[0,1]$ is uniformly continuous.
$X$ is normal, and for every compact Hausdorff space $C$, every uniformly continuous map $f:X\rightarrow C$ is uniformly continuous.