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  • Certified for environmental methods — plate counts, MPN
  • COA includes expected values for multiple methods
  • Robust — lyophilized technique ensures strong recovery, even for 44.5 ºC coliform methods
  • Unique — multi-organism CRM covers six methods in a single pellet (MIC-UNV-10)

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Wastewater

Manufactured from the highest purity water and analytically verified neat source materials. Our certified reference materials are ISO 17034 accredited.

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MBAs QC Concentrate CRM MBAs QC Concentrate CRM
SKU: QCI-124

MBAs QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Total Chlorine Accuracy Check Snip™ 1.00ppm Total Chlorine Accuracy Check Snip™ 1.00ppm
SKU: QCI-123

Total Chlorine Accuracy Check Snip™ 1.00ppm

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  • Brand NSI
  • Concentration 1.00 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Ultra Low Chlorine Accuracy Check Snip™ 0.100ppm Ultra Low Chlorine Accuracy Check Snip™ 0.100ppm
SKU: QCI-118

Ultra Low Chlorine Accuracy Check Snip™ 0.100ppm

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  • Brand NSI
  • Concentration 0.100 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Total Chlorine Accuracy Check Snip™ 2.50ppm Total Chlorine Accuracy Check Snip™ 2.50ppm
SKU: QCI-117

Total Chlorine Accuracy Check Snip™ 2.50ppm

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  • Brand NSI
  • Concentration 2.50 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Perchlorate Concentrate - Blind Perchlorate Concentrate - Blind
SKU: QCI-108B

Perchlorate Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Perchlorate QC Concentrate Perchlorate QC Concentrate
SKU: QCI-108

Perchlorate QC Concentrate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
TOX Concentrate - Blind TOX Concentrate - Blind
SKU: QCI-104B

TOX Concentrate - Blind

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
TOX QC Concentrate CRM TOX QC Concentrate CRM
SKU: QCI-104

TOX QC Concentrate CRM

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Silica Concentrate - Blind Silica Concentrate - Blind
SKU: QCI-101B

Silica Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Silica QC Concentrate CRM Silica QC Concentrate CRM
SKU: QCI-101

Silica QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Nitrite-N Concentrate - Blind Nitrite-N Concentrate - Blind
SKU: QCI-100B

Nitrite-N Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Nitrite-N QC Concentrate CRM Nitrite-N QC Concentrate CRM
SKU: QCI-100

Nitrite-N QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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