You searched for: standards
Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the reestablished conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.
Potassium Standard Solution
Supplier: Hach
Standard solution for accuracy checks in potassium determinations.
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Manganese Standard Solution
Supplier: Hach
Standard solutions for accuracy checks in manganese determinations.
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NSI Lab Solutions Wastewater QC Knowns
Supplier: SPEX CERTIPREP LLC
We have standards to support your wastewater testing.
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EDTA Standard Solution
Supplier: Hach
For hardness determination by burette titration.
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Regular Unleaded Gas-87 Octane
Supplier: SPEX CERTIPREP LLC
GAS-20 is a standard of Octane 87 gasoline for use in monitoring gasoline intrusion or pollution in the environment including water, soil and other environmental matrices.
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Chloride Standard Solution
Supplier: Hach
For accuracy checks in chloride determinations. Also suitable for standardising conductivity apparatus.
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AB-CHMINACA metabolite M4-d4 (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
An internal standard for the quantification of AB-CHMINACA metabolite M4 by GC- or LC-MS
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NSI Lab Solutions Drinking Water QC Knowns
Supplier: SPEX CERTIPREP LLC
We have standards to support your drinking water testing.
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ICP-MS Analytes B4, SPEX CertiPrep
Supplier: SPEX CERTIPREP LLC
CLP Standards for ICP & ICP-MS
Our Contract Laboratory Program (CLP) standards allow you to Calibrate with Confidence®. The standards are to be used in conjunction with the Statement of Work for Inorganic Analysis; Multi-Media/Multi-Concentration Document Number ILM 05.3/ISM 01.2.
The final ICP check, performed in our own laboratories, is your stamp of assurance. We calibrate our instruments with traceable reference materials and show you the actual found value of the solution you receive, not just an ideal, calculated number as so many other standards manufacturers do. The combination of elements, concentrations and matrices listed have been diagnosed by SPEX CertiPrep for convenience of use and stability.
US EPA SOW ILM 05.3/ISM 01.2 gives specific procedures for the methods of analysis, target elements, and concentrationlevels. Standards are specified not only by the elements present and their relative concentrations, but also the order and frequency of running standards, blanks and samples. Details of these specifications may be found in the US EPA SOW ILM 05.3/ISM 01.2 in the following sections:
• Exhibit C, Inorganic Target Analyte List (TAL)
• Exhibit D, Analytical Methods
• Exhibit E, QA/QC Requirements
CLP ISM 01.2 and ILM 05.2 & 05.3 Standards for ICP-MS
For verification of inter-element and background correction factors at the beginning and the end of each analysis run. In addition, a verification must be done after every 20th sample. Two solutions are required for the most common interference check: Solution A, the interferents alone (CL-INT-A2) and Solution AB, a combination of interferents (CL-INT-A2) and analytes (CL-INT-B3 or CL-INT-B4). Solution A is prepared by diluting CL-INT-A2 10-fold. Solution AB is prepared by diluting CL-INT-A2 10-fold and CL-INT-B3 or CL- INT-B4 100-fold; for example, 10 ml of CL-INT-A2 and 1 ml of CL-INT-B3 or CL-INT-B4 into a 100 ml volumetric flask, brought to volume with a matrix blank. Once prepared, the solutions should be analyzed consecutively, starting with Solution A.
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Precious Metal Impurities B without Os, SPEX CertiPrep
Supplier: SPEX CERTIPREP LLC
ICH Standard
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USP 232 Revision 40, Inhalation Mix 1 Elemental Impurities, SPEX CertiPrep
Supplier: SPEX CERTIPREP LLC
USP Standard.
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USP 232 Revision 40, Oral 2B Mix 2 Elemental Impurities, SPEX CertiPrep
Supplier: SPEX CERTIPREP LLC
USP Standard.
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USP 232 Revision 40, Inhalation Mix 3 Elemental Impurities, SPEX CertiPrep
Supplier: SPEX CERTIPREP LLC
USP Standard.
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USP 232 Revision 40, Oral 3 Mix 2 Elemental Impurities, SPEX CertiPrep
Supplier: SPEX CERTIPREP LLC
USP Standard.
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1,1,2-Trichlorotrifluoroethane (CFC-113), Restek
Supplier: Restek
1,1,2-Trichlorotrifluoroethane (CFC-113), Restek
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Chlordane, Toxaphene Solutions, Restek
Supplier: Restek
5000ug/mL. Solvent: Isooctane. Packaged 1mL/ampule.
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Iodomethane, Restek
Supplier: Restek
2000ug/mL. Solvent: Purge and Trap Grade Methanol. Packaged 1mL/ampule.
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Decachlorobiphenyl (BZ #209), Restek
Supplier: Restek
200ug/mL in acetone, 5 mL/ampule.
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Styrene, Restek
Supplier: Restek
2000ug/mL. Solvent: Purge and Trap Grade Methanol. Packaged 1mL/ampule.
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EPA Method 8270 and CLP–Semi-Volatiles (3/90 SOW) Base/Neutrals Surrogates, NSI
Supplier: SPEX CERTIPREP LLC
Mixture is packaged in methylene chloride at a concentration of 5,000µg/ml in an ampule
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Clonazolam (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Cannabicitran (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Zaleplon (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Cannabidiol (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Hydrocodone (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Pentobarbital (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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CBDP (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Nimetazepam (CRM), Cayman Chemical
Supplier: Cayman Chemical Company
A Certified Reference Material
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Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: Janitorial Supplies
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International
Supplier: Janitorial Supplies
Supplier: VWR International
Supplier: VWR International
Supplier: VWR International