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ZeptoMetrix Environmental Express Cole-Parmer

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2026-2027 Proficiency Study Schedule

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


Non Potable Water - Wastewater - Chemistry PT Studies

Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
21 days after study closure
Last Order Date USA
Last Order Date International
Outside USA
WP-319*Oct 07, 2026Nov 20, 2026Dec 11, 2026Nov 13, 2026Nov 06, 2026
WP-320Nov 04, 2026Dec 18, 2026Jan 08, 2027Dec 11, 2026Dec 04, 2026
WP-321*Jan 20, 2027Mar 05, 2027Mar 26, 2027Feb 26, 2027Feb 19, 2027
WP-322Mar 10, 2027Apr 23, 2027May 14, 2027Apr 16, 2027Apr 09, 2027
WP-323*Apr 14, 2027May 28, 2027Jun 18, 2027May 21, 2027May 14, 2027
WP-324May 05, 2027Jun 18, 2027Jul 09, 2027Jun 11, 2027Jun 04, 2027
WP-325*Jul 14, 2027Aug 27, 2027Sep 17, 2027Aug 20, 2027Aug 13, 2027
WP-3261Aug 04, 2027Sep 17, 2027Oct 08, 2027Sep 10, 2027Sep 03, 2027
WP-327*Oct 06, 2027Nov 19, 2027Dec 10, 2027Nov 12, 2027Nov 05, 2027
WP-328Nov 03, 2027Dec 17, 2027Jan 07, 2028Dec 10, 2027Dec 03, 2027
  • *Denotes Full Organic & Inorganic Studies. The others are Inorganic Only PT Studies.
  • 1This study number complies with NJ DEP September non-potable water PT study schedule.


Non-Potable Water (NPW) Microbiological Proficiency Test Studies

Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
21 days after study closure
Last Order Date USA
Last Order Date International
Outside USA
MP-2171Sep 02, 2026Oct 16, 2026Nov 06, 2026Oct 09, 2026Oct 02, 2026
MP-218Oct 19, 2026Dec 02, 2026Dec 23, 2026Nov 25, 2026Nov 18, 2026
MP-219Jan 13, 2027Feb 26, 2027Mar 19, 2027Feb 19, 2027Feb 12, 2027
MP-2202Mar 08, 2027Apr 21, 2027May 12, 2027Apr 14, 2027Apr 07, 2027
MP-221Apr 07, 2027May 21, 2027Jun 11, 2027May 14, 2027May 07, 2027
MP-222Jul 06, 2027Aug 19, 2027Sep 09, 2027Aug 12, 2027Aug 05, 2027
MP-2231Sep 01, 2027Oct 15, 2027Nov 05, 2027Oct 08, 2027Oct 01, 2027
MP-224Oct 18, 2027Dec 01, 2027Dec 22, 2027Nov 24, 2027Nov 17, 2027
  • 1This study number complies with NJ DEP September non-potable water PT study schedule.
  • 2This study number complies with NJ DEP March non-potable water PT study schedule.


DMRQA-46 Study

Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
21 days after study closure
Last Order Date USALast Order Date International Outside USA
DMRQA-46Oct 13, 2026
Dec 04, 2026Jan 08, 2027Nov 27, 2026Nov 27, 2026
DMRQA-47TBDTBDTBD


Potable Water - Drinking Water Chemistry PT Studies

Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
21 days after study closure
Last Order Date USA
Last Order Date International
Outside USA
WS-148Oct 12, 2026Nov 25, 2026Dec 16, 2026Nov 18, 2026Nov 11, 2026
WS-1491Jan 06, 2027Feb 19, 2027Mar 12, 2027Feb 12, 2027Feb 05, 2027
WS-150Mar 31, 2027May 14, 2027Jun 04, 2027May 07, 2027Apr 30, 2027
WS-1512Jun 30, 2027Aug 13, 2027Sep 03, 2027Aug 06, 2027Jul 30, 2027
WS-152Oct 11, 2027Nov 24, 2027Dec 15, 2027Nov 17, 2027Nov 10, 2027
  • 1This study number complies with NJ DEP March drinking water PT study schedule.
  • 2This study number complies with NJ DEP July drinking water PT study schedule.


Potable Water - Drinking Water - Microbiological PT Studies

Study NumberStudy Open Date
Shipping Samples		Study Close Date
Results due 24:00 EST (GMT-5)		Final Reports Available
21 days after study closure
Last Order Date USA
Last Order Date International
Outside USA
MS-262*Sep 09, 2026Oct 23, 2026Nov 13, 2026Oct 16, 2026Oct 09, 2026
MS-263Oct 05, 2026Nov 18, 2026Dec 11, 2026Nov 11, 2026Nov 04, 2026
MS-264*Nov 09, 2026Dec 23, 2026Jan 13, 2027Dec 16, 2026Dec 09, 2026
MS-265Jan 04, 2027Feb 17, 2027Mar 10, 2027Feb 10, 2027Feb 03, 2027
MS-266*Mar 01, 2027Apr 14, 2027May 05, 2027Apr 07, 2027Mar 31, 2027
MS-267Mar 29, 2027May 12, 2027Jun 02, 2027May 05, 2027Apr 28, 2027
MS-268*Jun 02, 2027Jul 16, 2027Aug 06, 2027Jul 09, 2027Jul 02, 2027
MS-2691Jul 07, 2027Aug 20, 2027Sep 10, 2027Aug 13, 2027Aug 06, 2027
MS-270*Sep 08, 2027Oct 22, 2027Nov 12, 2027Oct 15, 2027Oct 08, 2027
MS-271Oct 04, 2027Nov 17, 2027Dec 08, 2027Nov 10, 2027Nov 03, 2027
MS-272*Nov 08, 2027Dec 22, 2027Jan 12, 2028Dec 15, 2027Dec 08, 2027
  • *MIC-002, MIC-006, MIC-007, and MIC-009 are not available during these studies.
  • 1This study number complies with NJ DEP July drinking water PT study schedule.


Underground Storage Tank 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

Last Order Date USA

Last Order Date International
Outside USA
UST-129Aug 19, 2026Oct 02, 2026Nov 01, 2026Sep 25, 2026Sep 18, 2026
UST-130Oct 21, 2026Dec 04, 2026Jan 03, 2027Nov 27, 2026Nov 20, 2026
UST-131Feb 03, 2027Mar 19, 2027Apr 18, 2027Mar 12, 2027Mar 05, 2027
UST-1321Mar 24, 2027May 07, 2027Jun 06, 2027Apr 30, 2027Apr 23, 2027
UST-133Aug 18, 2027Oct 01, 2027Oct 31, 2027Sep 24, 2027Sep 17, 2027
UST-134Oct 20, 2027Dec 03, 2027Jan 02, 2028Nov 26, 2027Nov 19, 2027
  • 1This study number complies with NJ DEP April solid/chemical matrix PT study schedule.


Soil/Hazardous Waste

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

Last Order Date USA

Last Order Date International
Outside USA
SM-151Oct 21, 2026Dec 04, 2026Dec 25, 2026Nov 27, 2026Nov 20, 2026
SM-152Feb 03, 2027Mar 19, 2027Apr 09, 2027Mar 12, 2027Mar 05, 2027
SM-1531Mar 24, 2027May 07, 2027May 28, 2027Apr 30, 2027Apr 23, 2027
SM-154Aug 18, 2027Oct 01, 2027Oct 22, 2027Sep 24, 2027Sep 17, 2027
SM-155Oct 20, 2027Dec 03, 2027Dec 24, 2027Nov 26, 2027Nov 19, 2027
  • 1This study number complies with NJ DEP April solid/chemical matrix PT study schedule.


Food Science 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
Last Order Date USA
Last Order Date International
Outside USA
FS-1126Nov 16, 2026Dec 30, 2026Jan 29, 2027Dec 23, 2026Dec 16, 2026
FS-0227Feb 10, 2027Mar 26, 2027Apr 25, 2027Mar 19, 2027Mar 12, 2027
FS-0527May 12, 2027Jun 25, 2027Jul 25, 2027Jun 18, 2027Jun 11, 2027
FS-0827Aug 11, 2027Sep 24, 2027Oct 24, 2027Sep 17, 2027Sep 10, 2027
FS-1127Nov 15, 2027Dec 29, 2027Jan 28, 2028Dec 22, 2027Dec 15, 2027


Hemp Cannabis Science 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

Last Order Date USA

Last Order Date International
Outside USA
HEMP-0926Sep 23, 2026Nov 06, 2026Dec 06, 2026Oct 30, 2026Oct 23, 2026
HEMP-0327Mar 17, 2027Apr 30, 2027May 30, 2027Apr 23, 2027Apr 16, 2027
HEMP-0927Sep 22, 2027Nov 05, 2027Dec 05, 2027Oct 29, 2027Oct 22, 2027

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