Left: correlation between gas mass-weighted abundance within r₅₀₀ and the total mass M₅₀₀ for all the clusters in the sample. The black curve and shaded area denote the best fit function and the 1σ confidence interval: Z_mw = (0.52 ± 0.08)⋅(M₅₀₀/10¹⁴ M_⊙)^{−0.14 ± 0.09}. Right: correlation between the gas mass and M₅₀₀. The black curve and shaded area denote the best fit function and the 1σ confidence interval: M_gas/10¹⁴ M_⊙ = (0.131 ± 0.012)⋅(M₅₀₀/10¹⁴ M_⊙)^{1.05 ± 0.06}.