You searched for: Proficiency Testing Standards

Supplier: SPEX CERTIPREP LLC

Sample preserved with HNO3, yields up to 500 mL after dilution.

Supplier: SPEX CERTIPREP LLC

One 2 mL flame-sealed ampule yields up to 2 liters after dilution. Contains a subset of the analytes in the components list.

Supplier: SPEX CERTIPREP LLC

One 12 mL screw-cap vial with a solid yields 1 liter after dilution.

Supplier: SPEX CERTIPREP LLC

Yields up to 200 mL after dilution.

Supplier: SPEX CERTIPREP LLC

Yields up to 2 L after dilution. Analyze for total organic halides with adsorption pyrolysis titrimetric methods.

Supplier: SPEX CERTIPREP LLC

Yields up to 2 L after dilution.

Supplier: SPEX CERTIPREP LLC

Yields up to 1 L after dilution.

Supplier: SPEX CERTIPREP LLC

Yields up to 2 L after dilution.

Supplier: SPEX CERTIPREP LLC

Ready to analyze. Certified values are provided for IR and gravimetric methods.

Supplier: SPEX CERTIPREP LLC

One 15 mL screw cap vial yields up to 2 liters after dilution.

Supplier: SPEX CERTIPREP LLC

The end-product of most analytical laboratories is data. It is therefore imperative that the quality of the data produced meet or exceed performance criteria. The implementation of Quality Control (QC) processes helps control error and estimate uncertainty. QC can be a tool in method development, regulatory processes, laboratory training, and performance monitoring. QC samples can help an analytical laboratory determine its precision, accuracy, linear range, and methof ruggedness.

Supplier: SPEX CERTIPREP LLC

The end-product of most analytical laboratories is data. It is therefore imperative that the quality of the data produced meet or exceed performance criteria. The implementation of Quality Control (QC) processes helps control error and estimate uncertainty. QC can be a tool in method development, regulatory processes, laboratory training, and performance monitoring. QC samples can help an analytical laboratory determine its precision, accuracy, linear range, and methof ruggedness.

Supplier: SPEX CERTIPREP LLC

One liter whole-volume bottle is ready to analyze.

Supplier: SPEX CERTIPREP LLC

Yields up to 2 L after dilution.

Supplier: SPEX CERTIPREP LLC

One 2 mL flame-sealed ampule yields up to 2 liters of sample after dilution.

Supplier: SPEX CERTIPREP LLC

Yields up to 1 L after dilution. Use with nephelometric methods.

Supplier: SPEX CERTIPREP LLC

Ready to analyze. Use with AA, ICP-OES or ICP-MS methods.

Supplier: SPEX CERTIPREP LLC

One 2 mL flame-sealed ampule yields up to 2 liters after dilution.

Supplier: SPEX CERTIPREP LLC

One 250 mL whole-volume bottle is ready to analyze.

Supplier: SPEX CERTIPREP LLC

Ready to analyze.

Supplier: SPEX CERTIPREP LLC

One unpreserved 60 mL poly bottle yields in excess of 2 liters after dilution. Designed for colorimetric methods.

Supplier: SPEX CERTIPREP LLC

One 2 mL flame-sealed ampule yields up to 2 liters after dilution. Contains a subset of the analytes in the components list.

Supplier: SPEX CERTIPREP LLC

QC Sample containing two lyophilized samples consisting of one negative sample and one positive to be quantitated for total, fecal and E. coli coliforms.

Supplier: SPEX CERTIPREP LLC

Yields in excess of 200 mL after dilution.

Supplier: SPEX CERTIPREP LLC

One 2 mL flame-sealed ampule yields up to 2 liters after dilution. Designed for testing at low µg/L levels. Use with sensitive titrimetric or colorimetric methods.

Supplier: SPEX CERTIPREP LLC

One 15 mL screw-cap vial yields up to 1 liter after dilution. Use with nephelometric methods.

Supplier: SPEX CERTIPREP LLC

Each sample is one lyophilized standard containing a Heterotrophic bacteria present in the range 5-500 CFU/mL or MPN/mL.

Supplier: SPEX CERTIPREP LLC

One 60 mL poly bottle yields 1 liter after dilution.

Supplier: SPEX CERTIPREP LLC

One 15 mL screw-cap vial yields up to 1 liter after dilution. Use with nephelometric methods.

Supplier: SPEX CERTIPREP LLC

Yields up to 2 L after dilution.