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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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WS - Regulated VOCs - Blind WS - Regulated VOCs - Blind
SKU: QCO-007-12B

WS - Regulated VOCs - Blind

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Regulated VOCs WS - Regulated VOCs
SKU: QCO-007-12

WS - Regulated VOCs

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Regulated SOCs - Blind WS - Regulated SOCs - Blind
SKU: QCO-006B

WS - Regulated SOCs - Blind

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  • Brand NSI
  • Matrix Acetone
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Regulated SOCs WS - Regulated SOCs
SKU: QCO-006

WS - Regulated SOCs

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Toxaphene (Total) - Blind WS - Toxaphene (Total) - Blind
SKU: QCO-005-6B

WS - Toxaphene (Total) - Blind

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  • Brand NSI
  • Matrix Acetone
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Toxaphene (Total) WS - Toxaphene (Total)
SKU: QCO-005-6

WS - Toxaphene (Total)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Chlordane (Total) - Blind WS - Chlordane (Total) - Blind
SKU: QCO-005-5B

WS - Chlordane (Total) - Blind

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  • Brand NSI
  • Matrix Acetone
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Chlordane (Total) WS - Chlordane (Total)
SKU: QCO-005-5

WS - Chlordane (Total)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Organonitrogen Pesticides - Blind WS - Organonitrogen Pesticides - Blind
SKU: QCO-005-3B

WS - Organonitrogen Pesticides - Blind

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  • Brand NSI
  • Matrix Acetone
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Organonitrogen Pesticides WS - Organonitrogen Pesticides
SKU: QCO-005-3

WS - Organonitrogen Pesticides

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Organochlorine Pesticides - Blind WS - Organochlorine Pesticides - Blind
SKU: QCO-005-12B

WS - Organochlorine Pesticides - Blind

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  • Brand NSI
  • Matrix Acetone
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Organochlorine Pesticides WS - Organochlorine Pesticides
SKU: QCO-005-12

WS - Organochlorine Pesticides

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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