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VHG Labs Water Supply Inorganics QC Check Sample, 500 mL Vial - QWSIN-500

Price: £156.19


Qty. 
+-
Water Supply QC Check Sample for Inorganics

*12 months expiry from shipment*
  • Designed for analyses of drinking water, ground water, and clean surface wat
  • Tested in compliance with appropriate US EPA, NIST, NELAC, and ISO protocols
  • Certificate of Analysis includes two sets of acceptance limits to evaluate your performance
  • Traceable to NIST SRMs (whenever available)
  • For use in analyzing alongside US EPA, NELAC or state accreditation PT samples or as part of your own internal quality control program
VHG Labs QC Check Samples are NIST-traceable and verified by an interlaboratory program. Laboratories using these products as part of their internal quality program can monitor their performance against both EPA acceptance criteria and results from other well-respected laboratories.

QC Reference Standards are useful as controls and/or to represent your real-world samples for method development.

WS and WP certified reference standards offer great values. Many ship as concentrates in screw-topped vials, which can then be diluted to yield a liter or more. Exact directions are included on the Certificate of Analysis.

Specifications

Alkalinity as CaCO3:25-200 mg/L
Chloride: 20-160 mg/L
Fluoride:1-8 mg/L
Nitrate as N:3-10 mg/L
Nitrate + Nitrite, as N:3-10 mg/L
Potassium: 10-40 mg/L
Sodium:10-400 mg/L
Specific Conductance at 25°C: 130-1300 µmhos/cm
Sulfate:25-250 mg/L
Total Filterable Residue (TDS) at 180°C:100-1000 mg/L. 
Size:500mL vial



  • Model: QWSIN-500
  • Manufactured by: VHG Labs

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