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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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625 LCS Spike w/o Benzidines (10mL) 625 LCS Spike w/o Benzidines (10mL)
SKU: WL-396X

625 LCS Spike w/o Benzidines (10mL)

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  • Brand NSI
  • Matrix Methanol/Methylene
  • Concentration 100ug/mL
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
625 LCS Spike (10mL) 625 LCS Spike (10mL)
SKU: WL-396

625 LCS Spike (10mL)

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  • Brand NSI
  • Matrix Methanol/Methylene
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
8270 BNA Surrogates - SW 846 Color Coded 8270 BNA Surrogates - SW 846 Color Coded
SKU: WL-371C

8270 BNA Surrogates - SW 846 Color Coded

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
8270 BNA Surrogates - SW 846 8270 BNA Surrogates - SW 846
SKU: WL-371

8270 BNA Surrogates - SW 846

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
BNA Surrogates Solution (CLP SOW) Color Coded BNA Surrogates Solution (CLP SOW) Color Coded
SKU: WL-316C

BNA Surrogates Solution (CLP SOW) Color Coded

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
BNA Surrogates Solution (CLP SOW) BNA Surrogates Solution (CLP SOW)
SKU: WL-316

BNA Surrogates Solution (CLP SOW)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
ICP Standard in 2% HCl (100 mL) ICP Standard in 2% HCl (100 mL)
SKU: WAVECAL

ICP Standard in 2% HCl (100 mL)

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  • Brand HPS
  • Matrix 2% HCl
  • Concentration Multiple
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
15 Component ICP Standard in 5% HNO3 15 Component ICP Standard in 5% HNO3
SKU: WAVECAL-2

15 Component ICP Standard in 5% HNO3

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  • Brand HPS
  • Matrix 5% HNO3
  • Concentration Multiple
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
3 Component Surrogate Standard Mix, 2,000 µg/mL 3 Component Surrogate Standard Mix, 2,000 µg/mL
SKU: VOC-SURR-M3C-A1

3 Component Surrogate Standard Mix, 2,000 µg/mL

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 2,000 μg/mL
  • Certification Single: Gravimetric
76 Component Base Neutral & Acid Combination Calibration Standard 76 Component Base Neutral & Acid Combination Calibration Standard
SKU: VOC-M76C-A1

76 Component Base Neutral & Acid Combination Calibration Standard

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  • Brand HPS
  • Matrix Methylene Chloride
  • Concentration 1,000 µg/mL
  • Certification Single: Gravimetric
60 Component Volatile Organic Combination Mix at 200 µg/mL 60 Component Volatile Organic Combination Mix at 200 µg/mL
SKU: VOC-M60C-A1

60 Component Volatile Organic Combination Mix at 200 µg/mL

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 200 µg/mL
  • Certification Single: Gravimetric
60 Component Volatile Organic Combination Mix at 1,000 µg/mL 60 Component Volatile Organic Combination Mix at 1,000 µg/mL
SKU: VOC-M60C-1000-A1

60 Component Volatile Organic Combination Mix at 1,000 µg/mL

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 1,000 µg/mL
  • Certification Single: Gravimetric
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