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Organic, Inorganic, Microbiology, & PT for Cannabis & Hemp Testing

We offer the broadest selection of cannabis analytical reference materials and proficiency testing for cannabis and hemp to ensure accuracy in your analyses. ZeptoMetrix—together with Spex®, NSI, and Chiron—provides ISO 17034–certified reference materials (CRMs) for common contaminants (residual solvents, pesticide residues, heavy metals) and qualitative analyses. As the industry evolves, we continuously update our offerings to match its pace.

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Conductivity Standard at 25 ?ºC at 100 µmhos in H2O (500 mL) Conductivity Standard at 25 ?ºC at 100 µmhos in H2O (500 mL)
SKU: WQC-COND-500

Conductivity Standard at 25 ?ºC at 100 µmhos in H2O (500 mL)

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  • Brand HPS
  • Matrix H2O
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ Wet Chem
Unit Dose™ Pseudomonas paraeruginosa Unit Dose™ Pseudomonas paraeruginosa
SKU: UD-9027

Unit Dose™ Pseudomonas paraeruginosa

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
Unit Dose™ Escherichia coli Unit Dose™ Escherichia coli
SKU: UD-9001

Unit Dose™ Escherichia coli

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
Unit Dose™ Escherichia coli Unit Dose™ Escherichia coli
SKU: UD-8739

Unit Dose™ Escherichia coli

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
Unit Dose™ Salmonella abaetetuba Unit Dose™ Salmonella abaetetuba
SKU: UD-8244

Unit Dose™ Salmonella abaetetuba

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
Unit Dose™ Listeria monocytogenes Unit Dose™ Listeria monocytogenes
SKU: UD-7973

Unit Dose™ Listeria monocytogenes

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
Unit Dose™ Enterococcus faecalis Unit Dose™ Enterococcus faecalis
SKU: UD-775

Unit Dose™ Enterococcus faecalis

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
Unit Dose™ Bacillus subtilis Unit Dose™ Bacillus subtilis
SKU: UD-6633

Unit Dose™ Bacillus subtilis

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
Unit Dose™ Staphylococcus aureus Unit Dose™ Staphylococcus aureus
SKU: UD-6538

Unit Dose™ Staphylococcus aureus

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
Unit Dose™ Salmonella abony Unit Dose™ Salmonella abony
SKU: UD-6017

Unit Dose™ Salmonella abony

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
Unit Dose™ Bacillus cereus Unit Dose™ Bacillus cereus
SKU: UD-2599

Unit Dose™ Bacillus cereus

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
Unit Dose™ Escherichia coli Unit Dose™ Escherichia coli
SKU: UD-25922

Unit Dose™ Escherichia coli

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
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