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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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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
Calcium Carbonate Alkalinity Standard at 1,000 µg/mL in H2O (500 mL) Calcium Carbonate Alkalinity Standard at 1,000 µg/mL in H2O (500 mL)
SKU: WQC-ALK-500

Calcium Carbonate Alkalinity Standard at 1,000 µg/mL in H2O (500 mL)

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
  • Top rated
TRACE METALS II (500ML) TRACE METALS II (500ML)
SKU: WP-3-500

TRACE METALS II (500ML)

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  • Brand Spex
  • Matrix 2% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
TRACE METALS II (125 mL) TRACE METALS II (125 mL)
SKU: WP-3

TRACE METALS II (125 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
TRACE METALS 1 (125ml) TRACE METALS 1 (125ml)
SKU: WP-15N

TRACE METALS 1 (125ml)

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  • Brand Spex
  • Matrix 5% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
TRACE METALS  (500ML) TRACE METALS  (500ML)
SKU: WP-15-500N

TRACE METALS (500ML)

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  • Brand Spex
  • Matrix 5% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
TRACE METALS 1 TRACE METALS 1
SKU: WP-15-500

TRACE METALS 1

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  • Brand Spex
  • Matrix 5% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
TRACE METALS I TRACE METALS I
SKU: WP-15

TRACE METALS I

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  • Brand Spex
  • Matrix 5% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
ALTERNATE METALS I (500 mL) ALTERNATE METALS I (500 mL)
SKU: WP-11-500

ALTERNATE METALS I (500 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
ALTERNATE METALS I (125 mL) ALTERNATE METALS I (125 mL)
SKU: WP-11

ALTERNATE METALS I (125 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
SW 846 ReadyCurve w/o Internal Standards SW 846 ReadyCurve w/o Internal Standards
SKU: WL-729B

SW 846 ReadyCurve w/o Internal Standards

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
Appendix IX LCS Spike Mix Appendix IX LCS Spike Mix
SKU: WL-600

Appendix IX LCS Spike Mix

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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