ISO 5315:1984
ISO 5315:1984 Fertilizers – Determination of total nitrogen content – Titrimetric method after distillation
CDN $76.00
Description
The method consists in reducing of nitrate to ammonia by chromium powder in acid medium, converting of organic and urea nitrogen into ammonium sulfate by digestion with concentrated sulfuric acid in the presence of a catalyst, distilling of the ammonia from an alkaline solution and absorbing in an excess of standard volumetric sodium hydroxide solution. The method is not recommended for materials containing more than 7 % of organic matter.
Edition
1
Published Date
1984-05-01
Status
PUBLISHED
Pages
5
Language
English
Format
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment
Abstract
The method consists in reducing of nitrate to ammonia by chromium powder in acid medium, converting of organic and urea nitrogen into ammonium sulfate by digestion with concentrated sulfuric acid in the presence of a catalyst, distilling of the ammonia from an alkaline solution and absorbing in an excess of standard volumetric sodium hydroxide solution. The method is not recommended for materials containing more than 7 % of organic matter.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 59004:2024 Circular economy – Vocabulary, principles and guidance for implementation
CDN $351.00 Add to cart -
ISO 32210:2022 Sustainable finance – Guidance on the application of sustainability principles for organizations in the financial sector
CDN $233.00 Add to cart -
ISO 21625:2020 Vocabulary related to bamboo and bamboo products
CDN $76.00 Add to cart -
ISO 16417:2020 Earth-moving machinery – Hydraulic breakers – Terminology and commercial specifications
CDN $115.00 Add to cart
