Quality Control and Proficiency Samples
SPEX CERTIPREP LLC 3P TRACE METALS PT
(NSI by Zeptometrix) Wastewater Trace Metals PT Sample, 2 x 21 mL amber vial set
ERA WATERS CORP HARDNESS POTABLE WATER STANDAR
Hardness, PotableWatR One 250 mL whole-volume bottle is ready to analyze.
ERA WATERS CORP HEXAVALENT CHROMIUM PT SAMPLE
One 15 mL screw-cap vial yields up to 2 liters after dilution. Use with IC or colorimetric methods.
ERA WATERS CORP HETEROTROPHIC PLATE COUNT
Each sample is one lyophilized standard containing a Heterotrophic bacteria present in the range 5-500 CFU/mL or MPN/mL. Use with the Standard Methods 9215B - Pour Plate Method, and Most Probable Number (MPN) Method (simplate).
ERA WATERS CORP PH
One 15 mL screw-cap vial yields up to 1 liter after dilution. Use with nephelometric methods.
ERA WATERS CORP TURBIDITY
One 15 mL screw-cap vial yields up to 1 liter after dilution. Use with nephelometric methods.
ERA WATERS CORP FLUORIDE STD 1000MG/L 500ML
One 500 mL standard containing Fluoride at 1000 mg/L in H2O. This CRM is covered by ERA's ISO Guide 34 accreditation.
ERA WATERS CORP QC METALS
One 15 mL screw-cap vial yields up to 2 liters after dilution. Use with ICP-OES, ICP-MS and AA methods.