DIN 38409-20 PDF
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German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of substances that react with disulfine blue (H 20)
Published by | Publication Date | Number of Pages |
DIN | 07/01/1989 | 6 |
DIN 38409-20 – German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of substances that react with disulfine blue (H 20)
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