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ČSN ISO 6557-2 (560296)
Fruits, vegetables and derived products. Determination of ascorbic acid content. Part 2: Routine methods
STANDARD published on 1.5.1996
The information about the standard:
Designation standards: ČSN ISO 6557-2
Classification mark: 560296
Catalog number: 19587
Publication date standards: 1.5.1996
SKU: NS-179734
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
The category - similar standards:
Annotation of standard text ČSN ISO 6557-2 (560296):
Tato část normy ISO 6557 specifikuje dvě běžné metody pro stanovení obsahu kyseliny askorbové v ovoci, zelenině a ve výrobcích z nich.
metoda A: titrace s 2,6-dichlorfenolindofenolem
metoda B: spektrofotometricky 2,6-dichlorfenolindofenolem po extrakci xylenem
Metodu A lze použít pouze v nepřítomnosti interferujících látek (viz 2.6).
Metoda B je vhodná pro výrobky z ovoce a zeleniny v silně zbarvených roztocích
Similar standards:
16.9.1983
16.9.1983
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4.6.1980
1.3.1993
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1.1.1996
1.8.2011
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