NA 055
DIN Standards Committee Laboratory Devices and Installations
Technical rule
[CURRENT]
ZELLCHEMING IV/58/80
ZELLCHEMING IV/58/80
Testing of paper, cardboard and paperboard; acid and alkali content in aqueous extracts
Title (German)
Prüfung von Papier, Karton und Pappe; Säure- und Alkaligehalt in wäßrigen Extrakten