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HF Scientific™ ProCal™ Primary Turbidity Standards for Hach™ 2100N Laboratory Turbidimeter

Standards not harmful to the environment or to worker safety

Manufacturer:  HF Scientific™ HF52140

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Catalog No. 15-393-600



  • Pre-diluted
  • Do not include formazin
  • Preservative used enhances stability
  • Biodegradable, safe and non-toxic
  • Ready and easy to use
  • Factory certified by HF scientific
  • Custom NTU produced
  • Available in different size bottles