KS M ISO 1689:2017 Sodium and potassium silicates for industrial use — Calculation of the ratio: silicon dioxide/sodium oxide or silicon dioxide/potassium oxide
2017KS M ISO 1689:2017 Sodium and potassium silicates for industrial use — Calculation of the ratio: silicon dioxide/sodium oxide or silicon dioxide/potassium oxide
2007KS M ISO 1689:2007 Sodium and potassium silicates for industrial use-Calculation of the ratio:silicon dioxide/sodium oxide or silicon dioxide/potassium oxide