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Analytical Reference Materials

Organic, Inorganic, Microbiology & PT Reference Materials

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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9,912 Items found

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SKU: 370L

2,4,5-Trichlorophenoxyacetic acid

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 368M

1,2,3-Trichloropropane

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 360L

Carbon Tetrachloride

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
  • Concentration 100 ug/mL
  • Raw Material >95% min
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SKU: 35-M

1,2-Diphenylhydrazine

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 34-A

2,6-Dinitrotoluene

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 346L

Dichlorodifluoromethane

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 345-M

Dimethoate

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 345-HA

Dimethoate

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
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SKU: 54860-AC

Naled in Acetonitrile

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  • Brand NSI
  • Matrix Acetonitrile
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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SKU: 54500-1

Methiocarb in Acetone

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  • Brand NSI
  • Matrix Acetone
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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SKU: 8244

Salmonella abaetetuba

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: 8237

Clostridium perfringens

  • CCL
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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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