a$.25mL$ of a sludge sample was filtered through a standard filter paper weighing $1\mathrm{.}1234g$ and dried at $105C$ in an oven. The weight of the filter paper after drying in the oven was $1\mathrm{.}2345g.$ The filter paper was then ignited in a muffle furnace at $550C$ and the weight of the residue after ignition was $0\mathrm{.}0234m\frac{g}{L}.$

i$.$ Determine the TSS$,$ VSS and fixed suspended solid in the sample in $m\frac{g}{L}.(7$ marks$)$

ii$.$ Comment on the impact on the test results if the muffle furnace temperature was set at $900C$ by mistake. $(3$ marks$)$