Schedules

ISO 17043-Accredited PT Programs Available:

Environmental PT

  • Matrices: Drinking Water, Wastewater, Soil, Sludge, Hazardous Waste
  • Analytes: Comprehensive, US EPA-centered

Food PT

  • Matrices: Meat, Dairy, Grain
  • Analytes: Nutritional Proximates, Elements, Allergens

Nutraceutical & Cannabis PT

  • Matrices: Plant Material, Oil, Chocolate Edible
  • Analytes: Comprehensive
2024 NSI Proficiency Study Schedule
Non Potable Water (NPW) – Wastewater – Chemistry PT Studies (WP)
Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
21 days after study closure
WP-297*January 16, 2924February 29, 2024March 12, 2024
WP-298March 11, 2024April 24, 2024May 15, 2024
WP-299*April 16, 2024May 30, 2024June 20, 2024
WP-300May 07, 2024June 20, 2024July 11, 2024
WP-301*July 16, 2024August 29, 2024September 19, 2024
WP-3021August 06, 2024September 19, 2024October 10, 2024
WP-303*October 08, 2024November 21, 2024December 12, 2024
WP-304November 05, 2024December 19, 2024January 09, 2025
*Denoted full organic and inorganic PT schemes are available during the study.  All others are inorganic only PT studies.
1This study number complies with NJ DEP September non-potable water PT study schedule.  NJ DEP complaint analysis should occur between September 1-19, 2024.
Non Potable Water (NPW) – Wastewater – Microbiological PT Studies (MP)
Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
21 days after study closure
MP-201January 08, 2024February 21, 2024March 13 2024
MP-2021March 05, 2024April 18, 2024May 09, 2024
MP-203April 08, 2024May 22, 2024June 12, 2024
MP-204July 10, 2024August 23, 2024September 13, 2024
MP-2052September 02, 2024October 16, 2024November 06, 2024
MP-206October 22, 2024December 05, 2024December 26, 2024
1 This study number complies with NJ DEP March non-potable water PT study schedule. NJ DEP complaint analysis should occur between March 1-April 18, 2024.
2This study number complies with NJ DEP September non-potable water PT study schedule.
DMRQA-44 Study
Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
Set by US EPA
DMRQA-44May 17, 2024August 02, 2024August 30, 2024
DMRQA study schedule will be posted on the website when announced by the US EPA.
Potable Water – Drinking Water Chemistry PT Studies (WS)
Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
21 days after study closure
WS-1371January 08, 2024February 21, 2024March 13 2024
WS-138April 03, 2024May 17, 2024June 07, 2024
WS-1392July 02, 2024August 15, 2024September 05, 2024
WS-140October 15, 2024November 28, 2024December 19, 2024
1 This study number complies with NJ DEP March drinking water PT study schedule.
2 This study complies with NJ DEP July drinking water PT study schedule.
Potable Water – Drinking Water – Microbiological PT Studies (MS)
Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
21 days after study closure
MS-2411January 03, 2024February 16, 2024March 08, 2024
MS-242*March 04, 2024April 03, 2024April 24, 2024
MS-243April 02, 2024May 16, 2024June 06, 2024
MS-244*June 05, 2024July 05, 2024July 26, 2024
MS-2452July 08, 2024August 21, 2024September 05, 2024
MS-246*September 04, 2024October 02, 2024October 23, 2024
MS-247October 01, 2024November 14, 2024December 05, 2024
MS-248*November 13, 2024December 11, 2024January 01, 2025
* MIC-002, MIC-006, MIC-007, and MIC-009 are not available during these studies
1 This study number complies with NJ DEP March Drinking Water PT Study Schedule.
2 This study complies with NJ DEP July drinking water PT study schedule.
Soil/Hazardous Waste PT Studies (SM)
Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
21 days after study closure
SM-140February 06, 2024March 21, 2024April 11, 2024
SM-1411March 26, 2024May 09, 2024May 30, 2024
SM-142August 20, 2024October 03, 2024October 24, 2024
SM-143October 21, 2024December 04, 2024December 25, 2024
1 This study number complies with NJ DEP April solid/chemical matrix PT study schedule.  NJ DEP compliant analysis should occur between April 1-May 9, 2024.
Underground Storage Tank (UST) PT Studies
Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
Maximum 30 days after study closure
UST-115February 06, 2024March 21, 2024April 19, 2024
UST-116March 26, 2024May 09, 2024June 07, 2024
UST-117August 20, 2024October 03, 2024November 01, 2024
UST-118October 21, 2024December 04, 2024January 02, 2025
Food Science (FS) PT Studies
Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
Maximum 30 days after study closure
FS-0224February 13, 2024March 28, 2024April 27, 2024
FS-0524May 07, 2024June 20, 2024July 20, 2024
FS-0824August 06, 2024September 19, 2024October 19, 2024
FS-1124November 04, 2024December 18, 2024January 17, 2025
Hemp Cannabis Science PT Studies (HEMP)
Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
Maximum 30 days after study closure
HEMP-0324March 26, 2024May 09, 2024June 08, 2024
HEMP-0924September 24, 2024November 08, 2024December 08, 2024
EMERALD Test PT Studies (Order via Emerald Scientific)
Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
CM-0324March 12, 2024April 05, 2024Announced by
Emerald Scientific
CM-0924September 11, 2024September 27, 2024Announced by
Emerald Scientific