A comparison between the magnetic field strength estimated from the Zeeman splitting of the CH₃OH maser feature M05 and the critical magnetic field strength if E_rot > E_B and if E_rot < E_B. The hatched area and the dark gray area show the critical magnetic field strength in case κ = 0.47 (Crutcher 1999) and in case κ = 0.65 (Crutcher et al. 2010), respectively. The full box indicates the range of | B_CH3OH | measured by considering km s^-1 G^-1, while the dashed box indicates the range of | B_CH3OH | if km s^-1 G^-1. The ranges are estimated considering both the errors of ΔV_Z and θ.