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Proficiency Testing - Analytical Technique

We offer Proficiency Testing products for a variety of testing schemes for both quantitative and qualitative test performance.
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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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Minerals - Blind Minerals - Blind
SKU: QCI-136B

Minerals - Blind

  • CCL
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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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Wastewater Bromide Concentrate - Blind Wastewater Bromide Concentrate - Blind
SKU: QCI-134B

Wastewater Bromide Concentrate - Blind

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  • Brand NSI
  • Concentration 1.0 - 10 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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Drinking Water Color - Blind Drinking Water Color - Blind
SKU: QCI-131B

Drinking Water Color - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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Wastewater Color - Blind Wastewater Color - Blind
SKU: QCI-130B

Wastewater Color - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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SGT - HEM (TPH) Concentrate - Blind SGT - HEM (TPH) Concentrate - Blind
SKU: QCI-129B

SGT - HEM (TPH) Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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Hexavalent Chromium Concentrate - Blind Hexavalent Chromium Concentrate - Blind
SKU: QCI-128B

Hexavalent Chromium Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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Volatile Solids - Blind Volatile Solids - Blind
SKU: QCI-127B

Volatile Solids - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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Settleable Solids - Blind Settleable Solids - Blind
SKU: QCI-126B

Settleable Solids - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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MBAs Concentrate - Blind MBAs Concentrate - Blind
SKU: QCI-124B

MBAs Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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Perchlorate Concentrate - Blind Perchlorate Concentrate - Blind
SKU: QCI-108B

Perchlorate Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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TOX Concentrate - Blind TOX Concentrate - Blind
SKU: QCI-104B

TOX Concentrate - Blind

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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