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We offer ISO-accredited microbiological certified reference materials. Validated and traceable cultures are no more than two passages from the primary reference culture, ensuring genetic traceability to the primary cell line. Each lyophilized culture is preserved in our proprietary Microgel-Flash™ quick dissolve matrix. Pellets dissolve instantly once hydrated. Manufactured and tested under ISO 17034 and 17025 accreditations.

Downloadable Certificates of Analysis are available from our website. Sold in packs of 10 individually vacuum-sealed microorganism pellets. Stores in the freezer at -20°C to -10°C, with a product shelf life of 18 months from the manufacture date.

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Environmental

Robust — lyophilized technique ensures strong recovery even for 44.5 ºC coliform methods.

Pharmaceutical

Stable — hydrated samples can be used for up to 8 hours.

Food & Agriculture

Our organic standards, designed around analytical needs and international methodologies, range from pesticide testing to target fragrance and flavor compounds.

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Leave a review by July 31, 2026 and you’ll be entered for a chance to win a $400 Amazon® gift card, courtesy of SelectScience®.

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  • Brand HPS
  • Matrix H2O
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ Wet Chem
  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
  • Brand Spex
  • Matrix 2% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Brand Spex
  • Matrix 2% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Brand Spex
  • Matrix 5% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Brand Spex
  • Matrix 5% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Brand Spex
  • Matrix 5% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Brand Spex
  • Matrix 5% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Brand Spex
  • Matrix 2% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Brand Spex
  • Matrix 2% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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