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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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8,729 Items found

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Corrosivity QC Corrosivity QC
SKU: QCI-142

Corrosivity QC

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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Orthophosphate-P Concentrate - Blind Orthophosphate-P Concentrate - Blind
SKU: QCI-141B

Orthophosphate-P Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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Orthophosphate-P QC Concentrate Orthophosphate-P QC Concentrate
SKU: QCI-141

Orthophosphate-P QC Concentrate

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  • Brand NSI
  • Matrix Water
  • Concentration 0.5 to 5.5 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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Nitrite-N Concentrate - Blind Nitrite-N Concentrate - Blind
SKU: QCI-140B

Nitrite-N Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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Nitrite-N QC Concentrate Nitrite-N QC Concentrate
SKU: QCI-140

Nitrite-N QC Concentrate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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Complex Nutrients Concentrate - Blind Complex Nutrients Concentrate - Blind
SKU: QCI-139B

Complex Nutrients Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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Complex Nutrients QC Concentrate Complex Nutrients QC Concentrate
SKU: QCI-139

Complex Nutrients QC Concentrate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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Simple Nutrients Concentrate - Blind Simple Nutrients Concentrate - Blind
SKU: QCI-138B

Simple Nutrients Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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Simple Nutrients QC Concentrate CRM Simple Nutrients QC Concentrate CRM
SKU: QCI-138

Simple Nutrients QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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Hardness QC CRM (4 x 250 mL) Hardness QC CRM (4 x 250 mL)
SKU: QCI-137C

Hardness QC CRM (4 x 250 mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
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Hardness - Blind Hardness - Blind
SKU: QCI-137B

Hardness - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
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Hardness QC CRM Hardness QC CRM
SKU: QCI-137

Hardness QC CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/ICP Confirmation
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