CSN 65 9037-1984 Vat dyestuffs. Metods of determination: — point of congelation — stability at centrifuging — concentration of hydrogen ions [pH - value)
1984CSN 65 9037-1984 Vat dyestuffs. Metods of determination: — point of congelation — stability at centrifuging — concentration of hydrogen ions [pH - value)