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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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Texas TPH in Water Texas TPH in Water
SKU: TX-1005WQC

Texas TPH in Water

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
Texas TPH in Water Texas TPH in Water
SKU: TX-1005WPT

Texas TPH in Water

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  • Brand NSI
  • Matrix Water
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
Texas TPH in Soil - Blind Texas TPH in Soil - Blind
SKU: TX-1005SQCB

Texas TPH in Soil - Blind

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  • Brand NSI
  • Certification Grav &/ Volumetric w/analytical confirmation
  • Raw Material >95% min; as available
Texas TPH in Soil Texas TPH in Soil
SKU: TX-1005SQC

Texas TPH in Soil

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
Texas TPH in Soil Texas TPH in Soil
SKU: TX-1005SPT

Texas TPH in Soil

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  • Brand NSI
  • Matrix Soil
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
  • Top rated
  • KIT
WP-15N,WP-3,MN-6 WP-15N,WP-3,MN-6
SKU: TM-SETN

WP-15N,WP-3,MN-6

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  • Brand Spex
  • Matrix Multiple
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
SET OF 3; WP-15, WP-3, MN-6 SET OF 3; WP-15, WP-3, MN-6
SKU: TM-SET

SET OF 3; WP-15, WP-3, MN-6

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  • Brand Spex
  • Matrix Multiple
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
4 Component Trihalomethanes Mix, 200 µg/mL 4 Component Trihalomethanes Mix, 200 µg/mL
SKU: THM-LM4C-A1

4 Component Trihalomethanes Mix, 200 µg/mL

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 200 µg/mL
  • Certification Single: Gravimetric
4 Component Trihalomethanes Mix, 2,000 µg/mL 4 Component Trihalomethanes Mix, 2,000 µg/mL
SKU: THM-HM4C-A1

4 Component Trihalomethanes Mix, 2,000 µg/mL

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 2,000 μg/mL
  • Certification Single: Gravimetric
CONDUCTIVITY (TDS AS KCL) 650 PPM  (500 mL) CONDUCTIVITY (TDS AS KCL) 650 PPM  (500 mL)
SKU: TDS-2-500

CONDUCTIVITY (TDS AS KCL) 650 PPM (500 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 650 PPM
CONDUCTIVITY (TDS AS KCL) 65 PPM (500 mL) CONDUCTIVITY (TDS AS KCL) 65 PPM (500 mL)
SKU: TDS-1-500

CONDUCTIVITY (TDS AS KCL) 65 PPM (500 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 65 PPM
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