ISO 5318:1983 PDF
Fertilizers — Determination of potassium content — Potassium tetraphenylborate gravimetric method (Reference method)
Название (английский):
ISO 5318:1983
Fertilizers — Determination of potassium content — Potassium tetraphenylborate gravimetric method (Reference method)
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 3
- Дата публикации:
- 1 декабря 1983 г.
- Издание:
- ISO IS 5318 edition 1 version 1
- ICS:
- 65.080
Описание (английский):
The method consists in preparing of a test solution as specified in ISO 5317, precipitating of potassium ions by sodium tetraphenylborate in a weakly alkaline medium in the presence of disodium ethylenediaminetetraacetate dihydrate (EDTA, disodium salt) and formaldehyde, followed by filtrating of the precipitate, drying and weighing.
Технические детали
- Технический комитет
- ISO/TC 134 - Fertilizers, soil conditioners and beneficial substances
- SKU
- ISO 5318:1983