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ISO 5378

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

Số trang: 3
Ngày phát hành: 1978-06-00

Liên hệ
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.
Số hiệu tiêu chuẩn
ISO 5378
Tên tiêu chuẩn
Starches and derived products; Determination of nitrogen content by the Kjeldahl method; Spectrophotometric method
Ngày phát hành
1978-06-00
Trạng thái
Có hiệu lực
Tiêu chuẩn tương đương
DIN 10303-3 (1980-12), IDT * DIN EN ISO 5378 (1994-10), IDT * BS EN ISO 5378 (1994-11-15), IDT * prEN 25378 (1994-01), IDT * EN ISO 5378 (1994-08), IDT * NF V03-608 (1970-10-01), NEQ * NF V03-608 (1979-11-01), IDT * NF V03-608 (1994-10-01), IDT * SN EN ISO 5378 (1994), IDT * OENORM EN ISO 5378 (1994-11-01), IDT * OENORM ISO 5378 (1993-04-01), IDT * PN-EN ISO 5378 (2000-03-16), IDT * SS-EN ISO 5378 (1995-02-03), IDT * UNE-EN ISO 5378 (1995-12-29), IDT * GOST 7698 (1993), IDT * STN EN ISO 5378 (2001-11-01), IDT * CSN EN ISO 5378 (1996-09-01), IDT * DS/EN ISO 5378 (1995-02-13), IDT * NEN-EN-ISO 5378:1994 en (1994-10-01), IDT
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Lịch sử ban hành
ISO 5378 (1978-06)
Starches and derived products; Determination of nitrogen content by the Kjeldahl method; Spectrophotometric method
Số hiệu tiêu chuẩn ISO 5378
Ngày phát hành 1978-06-00
Mục phân loại 67.180.20. Tinh bột và sản phẩm chế biến
Trạng thái Có hiệu lực
Từ khóa
Chemical analysis and testing * Chemicals * Definitions * Derivatives * Determination * Determination of content * Distillation * Food products * Hydrolysis * Instruments * Kjeldahl * Kjeldahls method * Mathematical calculations * Nitrogen * Nitrogen content * Proteins * Spectrometry * Spectrophotometry * Starch products * Starches * Test performance * Testing * Procedures * Bushings * Interpretations * Methods * Content * Processes
Số trang
3