Starches and derived products — Determination of nitrogen content by the Kjeldahl method — Spectrophotometric method

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Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

01-06-1978

Publisher

International Organization for Standardization

Destruction of organic matter by sulphuric acid in the presence of a compound catalyst (see ISO 1871), alkalization of the reaction products, destillation of the liberated ammonia and collection in a sulphuric acid solution, followed by measuring of the ammonium salt formed after the addition of Nessler reagent. The method is provided for contents less than 0,025 % (m/m). For greater contents, see ISO 3188.

Committee	ISO/TC 93
DocumentType	Standard
Pages	3
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
NF EN ISO 5378 : 1994	Identical
NBN EN ISO 5378 : 1994	Identical
NEN EN ISO 5378 : 1994	Identical
NS EN ISO 5378 : 1ED 1994	Identical
I.S. EN ISO 5378:1995	Identical
PN EN ISO 5378 : 2000	Identical
SN EN ISO 5378 : 1994	Identical
UNI EN ISO 5378 : 1995	Identical
UNE-EN ISO 5378:1995	Identical
BS EN ISO 5378:1994	Identical
EN ISO 5378:1994	Identical
DIN EN ISO 5378:1994-10	Identical
NFV 03 608 : 1979	Identical

BS EN ISO 3188:1994

Starches and derived products. Determination of nitrogen content by the Kjeldahl method. Titrimetric method

ISO 1871:2009	Food and feed products General guidelines for the determination of nitrogen by the Kjeldahl method
ISO 3188:1978	Starches and derived products — Determination of nitrogen content by the Kjeldahl method — Titrimetric method
ISO 1227:1979	Starch, including derivatives and by-products — Vocabulary

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ISO 5378:1978

Starches and derived products — Determination of nitrogen content by the Kjeldahl method — Spectrophotometric method

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