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Explore the broadest selection of analytical reference materials and proficiency testing (PT) from the leading brands in certified and analytical reference materials: Spex, NSI, HPS, and Chiron.

Our harmonized product development and custom capabilities are tailored to bring you innovative products to help meet your unique application needs.

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SKU: 10662L

P. aeruginosa Low CFU Range (NCTC 12951)

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  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
SKU: TX-1005WQCB

Texas TPH in Water - Blind

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  • Brand NSI
  • Certification Grav &/ Volumetric w/analytical confirmation
  • Matrix Water
  • Raw Material >95% min; as available
SKU: IS-035

Phenols

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: IS-032

Chlorate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: IS-031

Chlorite CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: IS-030

Bromate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: IS-029

Cyanide (free)

  • CCL
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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: IS-027

Perchlorate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: IS-026

TOC CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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