ISO 7497:1984 PDF
Fertilizers — Extraction of phosphates soluble in mineral acids
Fertilizers — Extraction of phosphates soluble in mineral acids
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 2
- Дата публикации:
- 1 октября 1984 г.
- Издание:
- ISO IS 7497 edition 1 version 1
- ICS:
- 65.080
Specifies two equivalent methodes. They consist in dissolving the wanted substance in a mixture of hydrochloric and nitric acids or in a mixture of sulfuric and nitric acids.
Abstract
Overview
ISO 7497:1984 – Fertilizers - Extraction of phosphates soluble in mineral acids is an internationally recognized standard developed by the International Organization for Standardization (ISO). This standard specifies two equivalent and reliable methods for extracting mineral acid-soluble phosphates from fertilizers and mineral phosphates containing low levels of organic matter. The procedures involve the dissolution of the desired phosphates using blends of hydrochloric and nitric acids or sulfuric and nitric acids. The resulting extraction process is essential for accurate quality control, regulatory verification, and efficient product development within the fertilizer industry.
Похожие стандарты
Стандарты, упомянутые в описании