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DIN 38409-5:1989-02

Отменен
German standard methods for the examination of water, waste water and sludge; general measures of effects and substances (group H); determination of permanganate index (H 5); ISO 8467:1986 modified — 11 стр.
DIN 38409-5:1989-02
Отменен
DIN EN ISO 8467:1995-05
Действует