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Scheduled Proficiency Testing & PT Express™ 

As a leader among proficiency testing providers, we are proud to offer NSI Lab Solutions ISO 17043-accredited proficiency testing to environmental, food science, and cannabis/hemp testing laboratories. Our accredited PTs are also available through our on-demand PT Express version, allowing you to receive your final graded report within 48 hours after submitting results — no scheduled test selection required.

Past report copies and data entry are available 24/7 using our secure online PT Datalink. Scheduled proficiency testing is also available throughout the year. You may also be interested in our analytical reference materials.

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Environmental

Our studies include all analytes required by TNI fields of testing. All quantitative samples are supplied in duplicate.

Food & Agriculture

NSI Lab Solutions Food Microbiology Proficiency Testing (PT) studies are designed for your convenience and success.

Cannabis & Hemp

Cannabis & Hemp proficiency testing studies are designed for your convenience and success.

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NPW - Volatiles - Blind NPW - Volatiles - Blind
SKU: QCO-120B

NPW - Volatiles - Blind

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  • Brand NSI
  • Matrix Methanol solution
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
NPW - Volatiles NPW - Volatiles
SKU: QCO-120

NPW - Volatiles

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  • Brand NSI
  • Certification Grav &/ Volumetric w/analytical confirmation
  • Matrix Methanol
  • Raw Material >95% min; as available
NPW - Supplemental Volatiles - Blind NPW - Supplemental Volatiles - Blind
SKU: QCO-119B

NPW - Supplemental Volatiles - Blind

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  • Brand NSI
  • Matrix Methanol solution
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
NPW - Supplemental Volatiles NPW - Supplemental Volatiles
SKU: QCO-119

NPW - Supplemental Volatiles

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
NPW - Low Level Halocarbons - Blind NPW - Low Level Halocarbons - Blind
SKU: QCO-103B

NPW - Low Level Halocarbons - Blind

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  • Brand NSI
  • Matrix Methanol solution
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
NPW - Low Level Halocarbons NPW - Low Level Halocarbons
SKU: QCO-103

NPW - Low Level Halocarbons

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
NPW -Gasoline Range Organics (GRO) - Blind NPW -Gasoline Range Organics (GRO) - Blind
SKU: QCO-102B

NPW -Gasoline Range Organics (GRO) - Blind

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  • Brand NSI
  • Matrix Methanol solution
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
NPW -Gasoline Range Organics (GRO) NPW -Gasoline Range Organics (GRO)
SKU: QCO-102

NPW -Gasoline Range Organics (GRO)

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
NPW - Diesel Range Organics (DRO) - Blind NPW - Diesel Range Organics (DRO) - Blind
SKU: QCO-101B

NPW - Diesel Range Organics (DRO) - Blind

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  • Brand NSI
  • Matrix Methanol solution
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
NPW - Diesel Range Organics (DRO) NPW - Diesel Range Organics (DRO)
SKU: QCO-101

NPW - Diesel Range Organics (DRO)

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