Buy this standard

Abstract Preview

The method consists in distilling of the ammonia from an alkaline solution, absorbing in an excess of standard volumetric sulphuric acid solution and back-titrating with standard volumetric sodium hydroxide solution. It is applicable only in the absence of urea or its derivatives, of cyanamide and of organic nitrogenous compounds.


General information

  • Status :  Published
    Publication date : 1981-05
  • Edition : 1
    Number of pages : 4
  • Technical Committee
    :
    ISO/TC 134
    Fertilizers, soil conditioners and beneficial substances
  • ICS :
    65.080
    Fertilizers

Buy this standard

Format Language
PDF
Paper
  • CHF38

Life cycle

A standard is reviewed every 5 years



Revisions / Corrigenda

  • Now confirmed
    ISO 5314:1981

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information