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Globally, SGS laboratories offer a more comprehensive range of analytical services to the fertilizer industry.


We provide more accurate, cost effective analytical services in accordance with international standards to help you ensure the quality of your product.

Globally, SGS experts perform the following tests on sodium sulfate:

  • Water analysis (moisture content)
  • Screening
  • Size Guide Number (SGN)
  • Uniformity Index (UI)

SGS’s laboratory capabilities include elemental analysis as well as complete physical analysis. We have 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. SGS provides an unrivaled range of analytical testing procedures to meet the requirements of the fertilizer industry.