Skip to Main Content

Select country

Select your country

Scheduled Proficiency Testing & PT Express™ for Wastewater Testing

NSI is a globally trusted brand for laboratory quality control standards and proficiency tests. Routine use of our Certified Reference Materials (CRMs) and Proficiency Testing (PT) standards to monitor analytical performance will defensibly document data quality and support accreditation requirements.

We are laser-focused on developing, manufacturing, and delivering unique ISO-accredited CRMs that are not only stable but also easy to implement into routine testing workflows.

Interested in our GGA Concentrate Snips™? Simply snip open the tube and pour contents directly into a 300 mL BOD bottle. No measurements required, no contamination risk. Watch the demonstration video below to learn more!

Our Wastewater Standards Are Convenient & Easy-To-Use
Some unique wastewater product concepts include:

  • Pre-measured, single-use reference materials that prevent laboratory errors and rework
  • Ready-to-use CRMs requiring no preparatory steps, saving time and effort
  • Cocktailed, multi-parameter CRMs that reduce the number of CRMs needed in typical laboratory testing

Categories and filters

Filter / Sorting

Categories

Brand

Accreditations

Product Type

Regulatory Method

Instrument / Test

Analyte - Single / Multi

CAS #

Analyte / Component

114 Items found

Per Page:
Sort by:
Diesel Range Organics (DRO) Wastewater PT Standard (2 pack) Diesel Range Organics (DRO) Wastewater PT Standard (2 pack)
SKU: PEO-101

Diesel Range Organics (DRO) Wastewater PT Standard (2 pack)

Login to view pricing
  • Brand NSI
  • Matrix Methanol solution
  • Certification Single: Grav. w/Analytical Confirmation
OP Pesticides Wastewater PT Standard (2 pack) OP Pesticides Wastewater PT Standard (2 pack)
SKU: PEO-100

OP Pesticides Wastewater PT Standard (2 pack)

Login to view pricing
  • Brand NSI
  • Matrix Acetone
  • Certification Single: Grav. w/Analytical Confirmation
Herbicides Wastewater PT Standard (2 pack) Herbicides Wastewater PT Standard (2 pack)
SKU: PEO-094

Herbicides Wastewater PT Standard (2 pack)

Login to view pricing
  • Brand NSI
  • Matrix Methyl tert-butyl ether
  • Certification Single: Grav. w/Analytical Confirmation
Toxaphene Wastewater PT Standard (2 pack) Toxaphene Wastewater PT Standard (2 pack)
SKU: PEO-093

Toxaphene Wastewater PT Standard (2 pack)

Login to view pricing
  • Brand NSI
  • Matrix Acetone
  • Certification Single: Grav. w/Analytical Confirmation
PCBs in Oil Wastewater PT Standard (2 pack) PCBs in Oil Wastewater PT Standard (2 pack)
SKU: PEO-072

PCBs in Oil Wastewater PT Standard (2 pack)

Login to view pricing
  • Brand NSI
  • Matrix Hemp Oil
  • Certification Single: Grav. w/Analytical Confirmation
Full Organics Set Full Organics Set
SKU: PEO-062K

Full Organics Set

Login to view pricing
  • Brand NSI
  • Certification Single: Grav. w/Analytical Confirmation
EPA Organics Set EPA Organics Set
SKU: PEO-025K

EPA Organics Set

Login to view pricing
  • Brand NSI
  • Certification Single: Grav. w/Analytical Confirmation
Chlordane (Total) Wastewater PT Standard (2 pack) Chlordane (Total) Wastewater PT Standard (2 pack)
SKU: PEO-024-2

Chlordane (Total) Wastewater PT Standard (2 pack)

Login to view pricing
  • Brand NSI
  • Matrix Acetone
  • Certification Single: Grav. w/Analytical Confirmation
Acids Wastewater PT Standard (2 pack) Acids Wastewater PT Standard (2 pack)
SKU: PEO-022

Acids Wastewater PT Standard (2 pack)

Login to view pricing
  • Brand NSI
  • Matrix Acetone
  • Certification Single: Grav. w/Analytical Confirmation
PCB in Water Wastewater PT Standard (2 pack) PCB in Water Wastewater PT Standard (2 pack)
SKU: PEO-020

PCB in Water Wastewater PT Standard (2 pack)

Login to view pricing
  • Brand NSI
  • Matrix Acetone
  • Certification Single: Grav. w/Analytical Confirmation
FOGs by IR Wastewater PT Standard (2 pack) FOGs by IR Wastewater PT Standard (2 pack)
SKU: PEI-199

FOGs by IR Wastewater PT Standard (2 pack)

Login to view pricing
  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
Salinity Wastewater PT Standard (2 pack) Salinity Wastewater PT Standard (2 pack)
SKU: PEI-198

Salinity Wastewater PT Standard (2 pack)

Login to view pricing
  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
AlertAlertBrowse fileDownload fileFileImagePdfWordTextExcelPowerpointArchiveCsvAudioVideoSpinnerCalendarReturn arrowMinusVisibleInvisibleVisibleInvisibleConfigure