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SGS provides an unrivaled range of analytical testing procedures to meet the requirements of the fertilizer industry.


SGS’s laboratory analyses are performed in accordance with the Association of Fertilizer & Phosphate Chemists (AFPC), the Association of Analytical Chemists (AOAC), The Fertilizer Institute (TFI), ISO, CEN and/or other international or national methods as prescribed by your own corporate guidelines. This allows us to provide you with complete, accurate and timely fertilizer analysis.

Globally SGS provides the following tests for ammonium sulfate:

  • Color, visual
  • Bulk density
  • Free acid analysis
  • Water analysis (moisture content)
  • Ammonium nitrogen analysis
  • Total Nitrogen analysis
  • Screening
  • Size Guide Number (SGN)
  • Forms of Sulfur analysis
  • Uniformity Index (UI)
  • Forms of Carbon analysis
  • Solubility

SGS’s comprehensive global laboratory capabilities include elemental analysis as well as complete physical analysis. We have an intensive, on-going program to monitor quality in all our labs. Dozens of our labs carry internationally and industry recognized certifications and/or accreditations. Scopes vary among laboratories.

This service is not currently available in this country. However, we have an unrivalled global network. Please contact us to discuss the delivery of this service.