ISO 8968-3:2004 PDF
Milk — Determination of nitrogen content — Part 3: Block-digestion method (Semi-micro rapid routine method)
Milk — Determination of nitrogen content — Part 3: Block-digestion method (Semi-micro rapid routine method)
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 11
- Дата публикации:
- 1 сентября 2004 г.
- Издание:
- ISO IS 8968 edition 1 version 1
- ICS:
- 67.100.10
ISO 8968-3|IDF 20-3:2004 specifies a method for the determination of the nitrogen content of liquid, whole or skimmed milk. It concerns a semi-micro rapid routine method following the block-digestion principle.
Abstract
Overview
ISO 8968-3:2004 - Milk - Determination of nitrogen content - Part 3: Block‑digestion method (Semi‑micro rapid routine method) specifies a laboratory procedure for measuring the . The method is a semi‑micro, rapid routine variant of Kjeldahl/block digestion that reduces digestion time by using smaller test portions and adding together with and a catalyst. Results are reported as mass fraction of nitrogen calculated from the ammonia liberated and distilled from the digest.
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