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Analytical Technique

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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6,011 Items found

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SKU: UD-8739

Unit Dose™ Escherichia coli

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: UD-8244

Unit Dose™ Salmonella abaetetuba

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: UD-7973

Unit Dose™ Listeria monocytogenes

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: UD-775

Unit Dose™ Enterococcus faecalis

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: UD-6633

Unit Dose™ Bacillus subtilis

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: UD-6538

Unit Dose™ Staphylococcus aureus

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: UD-6017

Unit Dose™ Salmonella abony

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: UD-2599

Unit Dose™ Bacillus cereus

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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SKU: QCO-104B

Alcohols in Drinking Water PT Express

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  • Brand NSI
  • Matrix Water
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SKU: QCI-197B

Low Level Fluoride in Drinking Water PT Express *ECCN* 2 x 250mL

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  • Brand NSI
  • Matrix Water
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SKU: QCI-079B

Residue in Wastewater PT Express, 2 x 500mL

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  • Brand NSI
  • Matrix Water
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SKU: QCI-083B

Drinking Water pH PT Express, 1 x 250 mL

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  • Brand NSI
  • Matrix Water
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