ISO 5379:1983
Starches and derived products — Determination of sulfur dioxide content — Acidimetric method and nephelometric method
Reference number
ISO 5379:1983
ISO 5379:1983
Edición 1
1983-08
1983-08
© ISO 2024
Retirada
Resumen
Entrainment in a current of nitrogen of the gas extracted from the acidified and heated product, and fixing and oxidation of the gas by bubbling through a dilute solution of neutral hydrogen peroxid. Titration of the sulphuric acid formed with standard volumetric sodium hydroxide solution of nephelometric determination in the case of low contents.
Ciclo de vida
-
Ahora
-
Revisada por
PublicadoISO 5379:2013
¿Tiene alguna duda?
Consulte nuestras Ayuda y asistencia
Atención al cliente
+41 22 749 08 88
Horario de asistencia:
De lunes a viernes - 09:00-12:00, 14:00-17:00 (UTC+1)