Table 6.

Coefficients in the equation: $\text{E}={\text{E}}_{0^{°}}+\alpha \text{t}+\beta {\text{t}}^2+\gamma {\text{t}}^3+\delta {\text{t}}^4$

(On V69 and V68 scales)
(to 0.1 μV)
Order	E0	α × 106	β × 106	γ × 109	δ × 1011
4th 3d 2d	1.0189968 1.0189967 1.0190260	9.3415 9.4019 −1.5507	−1.5454 −1.5521 −0.89411	9.7894 10.034	0.27990
(to 0.01 mV or 10 μV)
4th	1.01900	9.9747	−1.6498	13.828	−4.2920
3d	1.1900	9.0481	−1.5469	10.082
2d	1.01903	−1.9569	−0.88584