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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: S12-100Y

MULTI-STANDARD S12, 12 ELEMENTS AT 100UG/G (100G)

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  • Brand Spex
  • Matrix Base Oil 75
  • Concentration 100UG/G
SKU: QCI-145C

Hardness QC (4 x 250 mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: QCI-145B

Hardness - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: QCI-145

Hardness QC

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: QCI-137C

Hardness QC CRM (4 x 250 mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: QCI-137B

Hardness - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: QCI-137

Hardness QC CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: IS-017

Total Hardness CRM, 1000mg

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  • Brand NSI
  • Concentration 1000mg
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: BFS-10Y

Sulfur Biodiesel Standard, 10 µg/g (100 mL)

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  • Brand Spex
  • Matrix B100 Biofuel
  • Concentration 10 µg/g
SKU: QCI-197

Low Level Fluoride QC CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: QCI-195B

Nitrate-N Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: QCI-195

Nitrate-N QC Concentrate

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