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Standards [CURRENT]

DIN EN 12120

Chemicals used for treatment of water intended for human consumption - Sodium hydrogen sulfite; German version EN 12120:2022
Edition 2023-03

Standards [CURRENT]

DIN EN 12121

Chemicals used for treatment of water intended for human consumption - Sodium disulfite; German version EN 12121:2022
Edition 2023-03

Draft standard

DIN EN 12122

Chemicals used for treatment of water intended for human consumption - Ammonia solution; German and English version prEN 12122:2023
Edition 2023-04

Standards [CURRENT]

DIN EN 12122

Chemicals used for treatment of water intended for human consumption - Ammonia solution; German version EN 12122:2005
Edition 2005-08

Standards [CURRENT]

DIN EN 12123

Chemicals used for treatment of water intended for human consumption - Ammonium sulfate; German version EN 12123:2022
Edition 2022-10

Standards [CURRENT]

DIN EN 12124

Chemicals used for treatment of water intended for human consumption - Sodium sulfite; German version EN 12124:2022
Edition 2022-10

Standards [CURRENT]

DIN EN 12125

Chemicals used for treatment of water intended for human consumption - Sodium thiosulfate; German version EN 12125:2022
Edition 2022-10

Standards [CURRENT]

DIN EN 12126

Chemicals used for treatment of water intended for human consumption - Liquefied ammonia; German version EN 12126:2022
Edition 2022-10

Standards [CURRENT]

DIN EN 12127

Textiles - Fabrics - Determination of mass per unit area using small samples; German version EN 12127:1997
Edition 1997-12

Standards [CURRENT]

DIN EN 12128

Biotechnology - Laboratories for research, development and analysis - Containment levels of microbiology laboratories, areas of risk, localities and physical safety requirements; German version EN 12128:1998
Edition 1998-05

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