ISO 985:1976
Sodium hydroxide for industrial use; Determination of silica content; Gravimetric method by precipitation of quinoline molybdosilicate

 

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Завершение срока действия 01.08.1990
Опубликован 01.02.1976

Sodium hydroxide for industrial use; Determination of silica content; Gravimetric method by precipitation of quinoline molybdosilicate