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SGS provides unrivalled fertilizer testing.


Our global laboratories feature state-of-the-art instrumentation to provide accurate results with the optimum turn-around time. Our fertilizer analysis capabilities include nutrients such as nitrogen, phosphates and potassium. Our professionally staffed laboratories use the latest in instrumental methodology as well as classical wet chemistry methods.

SGS provides the following tests on phosphate rock:

  • Acid, insoluble (CLA10E)
  • Aluminum analysis 
  • Cadmium analysis
  • Calcium analysis 
  • Fluoride analysis 
  • Iron analysis 
  • Loss on Ignition
  • Magnesium analysis 
  • Water analysis (moisture content)
  • Organic matter
  • Potassium analysis 
  • Silica analysis
  • Sodium analysis 
  • Phosphorous analysis 
  • Forms of Sulfur analysis
  • ICP Trace Metals
  • Specific Gravity 
  • Total Nitrogen analysis 
  • Total Suspended Solids (TSS) 
  • Viscosity

All global SGS fertilizer laboratories have standardized methods, method codes and sample preparation techniques. SGS has an intensive, ongoing 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. Contact us today for complete, accurate and timely fertilizer analysis.