ISO 6491:1998
Animal feeding stuffs — Determination of phosphorus content — Spectrometric method
Animal feeding stuffs — Determination of phosphorus content — Spectrometric method
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 7
- Дата публикации:
- 17 декабря 1998 г.
- Издание:
- ISO IS 6491 edition 2 version 1
- ICS:
- 65.120
This International Standard specifies a spectrometric method for the determination of the phosphorus content of animal feeding stuffs. The method is applicable to animal feeding stuffs with a phosphorus content less than 50 g/kg. It is particularly appropriate for the analysis of products with low phosphorus content. For products with higher phosphorus content, application of a gravimetric method is advised, using for instance quinoline phosphomolybdate.
Abstract
Overview
ISO 6491:1998 specifies a spectrometric method for the determination of phosphorus content in animal feeding stuffs. The method is intended primarily for feeds with low phosphorus content (below 50 g/kg) and describes sample preparation, chemical digestion routes, color development with a molybdovanadate reagent and spectrophotometric measurement. For very high phosphorus levels the standard recommends a gravimetric approach (for example, quinoline phosphomolybdate).
Key topics and technical requirements
- Scope and applicability: Designed for animal feeding stuffs with phosphorus
Технические детали
- Технический комитет
- ISO/TC 34/SC 10 - Animal feeding stuffs
- SKU
- ISO 6491:1998
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