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Paints and varnishes - Determination of pH value - Part 1: pH electrodes with glass membrane

Paints and varnishes - Determination of pH value - Part 1: pH electrodes with glass membrane (ISO/DIS 19396-1:2024)

Paints and varnishes - Determination of pH value - Part 1: pH electrodes with glass membrane (ISO/DIS 19396-1:2024); German and English version prEN ISO 19396-1:2024

Air quality - Determination of ozone in ambient air - Ultraviolet photometric method - Amendment 1: Consensus value for the ozone absorption cross-section at room temperature at the mercury-line wavelength (253,65 nm air)

Ambient air - Determination of the mass concentration of ozone - Chemiluminescence method - Amendment 1: Consensus value for the ozone absorption cross-section at room temperature at the mercury-line wavelength (253,65 nm air)

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