T (K),ln(R/A),x_err (K),y_err_lower,y_err_upper,conc (mg/ml)
251.157,1.058,0.250,1.458,0.569,1
250.192,1.918,0.250,0.546,0.351,1
249.864,2.235,0.250,0.296,0.228,1
249.202,3.947,0.250,0.194,0.162,1