ISO 3332:1975
ISO · 1975-07
Ammonium sulphate for industrial use; Determination of ammoniacal nitrogen content; Titrimetric method after distillation
ICS 71.060.50
Cited by 2
1Key Takeaways
Based on dissolution of a test sample in water, distillation of the ammonia after displacement by an alkali solution. Absorption in an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of methyl red/methylene blue mixed indicator.…
2Scope / Description
Based on dissolution of a test sample in water, distillation of the ammonia after displacement by an alkali solution. Absorption in an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of methyl red/methylene blue mixed indicator. A typical distillation apparatus is shown in a figure.
3Version History
ISO 3332:1975
1975-07
5Citation Network
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6Frequently Asked Questions
What is ISO 3332:1975?
ISO 3332:1975 — Ammonium sulphate for industrial use; Determination of ammoniacal nitrogen content; Titrimetric method after distillation is an international standard developed by International Organization for Standardization (ISO). Based on dissolution of a test sample in water, distillation of the ammonia after displacement by an alkali solution. Absorption in an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide...
What does ISO 3332:1975 cover?
This standard covers: Based on dissolution of a test sample in water, distillation of the ammonia after displacement by an alkali solution. Absorption in an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of methyl red/methylene...
Who should use this standard?
This standard is intended for organizations, professionals, and stakeholders involved in various industries and sectors. It is applicable to manufacturers, service providers, regulatory bodies, and certification organizations.
What is the latest version of ISO 3332:1975?
The current published version is ISO 3332:1975, published on 1975-07. Always check for amendments or pending revisions.
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