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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: 678

Formaldehyde

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: 675

Cyclohexanone

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  • Brand NSI
  • Matrix Acetonitrile
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 659

2-Methyl-1-propanol

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  • Brand NSI
  • Matrix PT Methanol
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 654

Disulfoton

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  • Brand NSI
  • Matrix Acetone
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 652

2,3,5,6-Tetrachlorophenol

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  • Brand NSI
  • Matrix CH2Cl2
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 644

2,3,4-Trichlorophenol

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  • Brand NSI
  • Matrix CH2Cl2
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 642

3,4-Dichlorophenol

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 623

Diallate

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  • Brand NSI
  • Matrix CH2Cl2
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 622

Endothall

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 611

Dicrotophos

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 596

Dibenz(a,j)anthracene

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  • Brand NSI
  • Matrix MeCl2
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 574

Chlorobenzilate

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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