Escala de pH (exemplos) Sizes: 150 × 150 / 300 × 122 / 768 × 311 / 1.024 × 415 / 250 × 250 / 600 × 400 / 300 × 200 / 400 × 200 / 130 × 90 / 1.025 × 416 / 1.502 × 609
