Table 3.

Limited datasets and the scaling parameters that can be determined from theme.

	Types of datasets	Parameters determined
				Core parameters
		$C$ a	${B_{\text{c}2}}^{\ast }(0,0)$	${T_{\text{c}}}^{\ast }(0)$	$\eta$	$s$	$b_{\text{c}2}(\epsilon )$	$p$	$q$
1	$I_{\text{c}}(B,T,\epsilon )$ (unified $T-\epsilon$ apparatus)	✓	✓	✓	✓	✓	✓	✓	✓
2	$I_{\text{c}}(B,T)$) fixed $\epsilon$ (dedicated $T$ rig)	✓	✓	✓	✓			✓	✓
3	$I_{\text{c}}(B,\epsilon )$ fixed $T$ (dedicated $\epsilon$ rig)	✓	✓			✓	✓	(✓)	✓
4	$I_{\text{c}}(T)$ fixed $B,\epsilon$ (dedicated $T$ rig)	✓		✓	✓
5	$I_{\text{c}}(\epsilon )$ fixed $B,T$ (dedicated $\epsilon$ rig)	✓					✓
6	$I_{\text{c}}(B)$ fixed $T,\epsilon$ (routine $I_{\text{c}}$ testing)	✓	✓					(✓)	✓
7	$I_{\text{c}}$ fixed $B,T,\epsilon$ (routine $I_{\text{c}}$ testing)	✓

Notes: ✓ Indicates parameters that can be accurately determined from the indicated dataset.

Blank: Indicates parameters that must be supplied, either with values from other datasets, or with default values (from section 5.5).

(✓) Indicates there is often insufficient data at low magnetic fields and temperatures to determine $p$, in which case it must be assigned a default value. This is particularly the case for high-$J_{\text{c}}$ conductors if data are available only at liquid helium temperatures where transport current heating effects usually prevent measurements at low enough fields to determine $p$ (examples of the lack of sufficient low-field data are seen in the master pinning-force curves illustrated in Part 2, both in section 5 and in the master scaling curves in appendix A). Fortunately, tests show that the precise default values for $p$ (and $q$) do not effectively change the RMS error ($\text{ΔRMSE}=\sim 0.02\text{\%}$), as long as $p$ and $q$ are fixed in a reasonable range $p=\sim 0.4$ to 0.5, or $q=1.5$ to 2.5, and used with corresponding core parameter values.

^aDefinition: $C\equiv K(0,0)$.