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Proficiency Testing Standards


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Supplier:  SPEX CERTIPREP LLC
Description:   Ready to analyze. Use with AA, ICP-OES or ICP-MS methods.
Supplier:  SPEX CERTIPREP LLC
Description:   One liter whole-volume bottle is ready to analyze.

Supplier:  SPEX CERTIPREP LLC
Description:   One liter whole-volume bottle is ready to analyze.

Supplier:  SPEX CERTIPREP LLC
Description:   Yields up to 2 L after dilution.

Supplier:  SPEX CERTIPREP LLC
Description:   One 250 mL whole-volume bottle is ready to analyze. Designed for use with titrimetric methods to a pH endpoint of 8.3.

Supplier:  SPEX CERTIPREP LLC
Description:   Yields up to 1 L after dilution.

Supplier:  SPEX CERTIPREP LLC
Description:   One 5 mL flame-sealed ampule yields up to 4 liters after dilution.

Supplier:  SPEX CERTIPREP LLC
Description:   Yields up to 2 L after dilution. Analyze for total phenolic compounds by 4-AAP methods.

Supplier:  SPEX CERTIPREP LLC
Description:   One 15 mL screw-cap vial yields up to 2 liters after dilution.

Supplier:  SPEX CERTIPREP LLC
Description:   Yields up to 2 L after dilution. Use with titrimetric or colorimetric methods.

Supplier:  SPEX CERTIPREP LLC
Description:   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
Description:   Yields up to 2 L after dilution. Analyze for total organic halides with adsorption pyrolysis titrimetric methods.

Supplier:  SPEX CERTIPREP LLC
Description:   One 60 mL poly bottle yields 1 liter after dilution.

Supplier:  SPEX CERTIPREP LLC
Description:   One 250 mL whole-volume bottle is ready to analyze.

Supplier:  SPEX CERTIPREP LLC
Description:   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
Description:   The end-product of most analytical laboratories is data. It is therefore imperative that the quality of the data produced meet or exceed performance c...
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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
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The original product is no longer available. The replacement shown is available.
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