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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: 51-00053

A. brasiliensis NCPF 2275

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: 51-00026

Pseudomonas paraeruginosa NCTC 12924 for USP 51 (1x10^8 CFU)

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: 51-0001k

USP 51 Sample Kit

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
  • Raw Material >95% min; as available
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SKU: 10K-0012

Escherichia coli NCTC 12933 (10 Pack)

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: 10K-00054

Candida albicans NCPF 3179 (10 Pack)

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: 10K-00029

Salmonella enterica Abony NCTC 6017 (10 Pack)

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: 10K-00026

Pseudomonas aeruginosa NCTC 12924 (10 Pack)

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: 100071-9

Carbon from Potassium Hydrogen Phthalate at 1,000 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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SKU: 69

Dimethyl phthalate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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SKU: 68

Diethyl phthalate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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SKU: 67

Di-n-octyl phthalate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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SKU: 66

Di-n-butyl phthalate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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