International Standard
ISO 2164:1975
Pulses — Determination of glycosidic hydrocyanic acid
Reference number
ISO 2164:1975
ISO 2164:1975
Edición 1
1975-09
1975-09
© ISO 2024
International Standard
p
ISO 2164:1975
6958
No disponible en español
Publicado
(Edición 1, 1975)
Esta norma se revisó y confirmó por última vez en 2023.
Por lo tanto, esta versión es la actual.
Resumen
The method consists in steam distillation of the acid liberated after enzymatic or acid hydrolysis of the glycosides, followed by determination of the quantity of acid obtained, either by direct titration in the distillate with silver nitrate solution in an ammoniacal medium and in the presence of potassium iodide, or by back titration of an excess of silver nitrate solution with ammonium thiocyanate solution, in a suffiently diluted nitric acid medium and in the presence of iron(III) ions. An annex describes a determination by the mercurimetric method.
Informaciones generales
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Estado: PublicadoFecha de publicación: 1975-09Etapa: Norma Internacional confirmada [90.93]
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Edición: 1Número de páginas: 4
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Comité Técnico :ISO/TC 34/SC 4ICS :67.060
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